Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|Philips|901574|22575|Philips CDM 860 Watt - 4000K - BT37 V EA Allstart|Philips Energy Advantage CDM lamp with AllStart Technology is a high-efficiency protected "O" rated CDM lighting solution that provides energy savings without compromising light quality. The 860W lamp is made to retrofit or use with a 1000 watt magnetic ballasts only. It will operate on any MH, HPS or Pulse Start 1000 watt magnetic ballast. Not approved to operate on electronic ballasts. The CDM860 is vertical burning open rated lamp available in 4100 degrees K color, high 92 CRI and 82,000 initial lumens.|http://www.horticulturesource.com/philips-philips-cdm-860-watt-4000k-bt37-v-ea-allstart-p22575/|http://www.horticulturesource.com/images/901574.jpg|90.6900|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|Philips|hf-BUCMH31542K|22808|Philips 4200K Master Color CDM Elite MW 315 Watt T12|CDM T12 ELITE 315/W/942/U/OSuperior color quality. Crisp white light. 4200k color temperature, High 92cri, 34,300 initial lumens (109Lm/W). High 90% lumen maintenance at 8,000 hr./High 85% PPF maintenance at 20,000 hr. Unique Open Rated Lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use. Shipping Weight 0.8 lbs. Package Dimensions 2.2L x 2.2W x 9.0H Units/case 12 Units allet 864 Rated Wattage 315 Base Type PGZ18 HID Type Ceramic Metal Halide Rated Initial Lumens 35,500 Color Temp 4200K Bulb Orientation Universal Bulb Shape T12 Average Rated Life Hours 30,000 CRI 90|http://www.horticulturesource.com/philips-philips-4200k-master-color-cdm-elite-mw-315-watt-t12-p22808/|http://www.horticulturesource.com/images/BUCMH31542K-n.jpg|71.2700|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|Philips|hf-BUCMH31531K|22809|Philips 3100K Master Color CDM Elite Agro 315 Watt T12|Philips Elite Agro 315W T12 Lamp provides a compact and efficient metal halide solution for the horticulture market. This lamp provides outstanding growth light performance over the life of the product. Shipping Weight 0.8 lbs. Package Dimensions 2.2L x 2.2W x 9.0H Units/case 12 Units allet 864 Rated Wattage 315 Base Type PGZX18 Rated Initial Lumens 33,000 Color Temp 3100K Bulb Orientation Universal Bulb Shape T12 Average Rated Life Hours 20,000 CRI 92 Voltage 98|http://www.horticulturesource.com/philips-philips-3100k-master-color-cdm-elite-agro-315-watt-t12-p22809/|http://www.horticulturesource.com/images/BUCMH31531K-n.jpg|71.2700|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|USHIO|hf-US5002536|24175|Ushio Hilux Gro CMH Lamp, 315W, 3000K PGZ18|Efficient growth lighting in professional greenhouses.andnbsp;andnbsp;Ceramic metal halide lamp for plant growthSpectral distribution optimized for photosynthesis efficiencyBlue output for healthy plant growth and robustnessCeramic and#956;mol output within the PAR spectral range (Photosyntesis Active Radiation)Economic (long average life, high and#956;mol output, low energy consumption)Easy lamp changeApplicationandnbsp;andnbsp;|http://www.horticulturesource.com/ushio-ushio-hilux-gro-cmh-lamp-315w-3000k-pgz18-p24175/|http://www.horticulturesource.com/images/US5002536.jpg|61.6000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|USHIO|hf-US5002537|24176|Ushio Hilux Gro CMH Lamp, 315W, 4200K PGZ18|Efficient growth lighting in professional greenhouses.andnbsp;Ceramic metal halide lamp for plant growthSpectral distribution optimized for photosynthesis efficiencyBlue output for healthy plant growth and robustnessCeramic and#956;mol output within the PAR spectral range (Photosyntesis Active Radiation)Economic (long average life, high and#956;mol output, low energy consumption)Easy lamp changeApplicationandnbsp;|http://www.horticulturesource.com/ushio-ushio-hilux-gro-cmh-lamp-315w-4200k-pgz18-p24176/|http://www.horticulturesource.com/images/US5002537.jpg|61.6000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|USHIO|902931|25034|Ushio CMH-315 Watt / 930 / Agro 3000K (12/Cs)|The Ushio HiLux Ceramic MH lamps are available in 3,000 degrees K and 4,200 degrees K. Ceramic metal halide lamps are excellent for plant growth and HPS supplementation. Spectral distribution is optimized for photosynthetic efficiency. Blue output for healthy plant growth and robustness. Ceramic Ámol output within the PAR spectral range (Photosynthetic Active Radiation). Economical due to long average life, high Ámol output, low energy consumption.|http://www.horticulturesource.com/ushio-ushio-cmh-315-watt-930-agro-3000k-12-cs--p25034/|http://www.horticulturesource.com/images/902931.jpg|61.6000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|USHIO|902933|25035|Ushio CMH-315 Watt / 942 / Agro 4200K (12/Cs)|The Ushio HiLux Ceramic MH lamps are available in 3,000 degrees K and 4,200 degrees K. Ceramic metal halide lamps are excellent for plant growth and HPS supplementation. Spectral distribution is optimized for photosynthetic efficiency. Blue output for healthy plant growth and robustness. Ceramic Ámol output within the PAR spectral range (Photosynthetic Active Radiation). Economical due to long average life, high Ámol output, low energy consumption.|http://www.horticulturesource.com/ushio-ushio-cmh-315-watt-942-agro-4200k-12-cs--p25035/|http://www.horticulturesource.com/images/902933.jpg|61.6000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps||901642|25048|Par Pro LEC Lamp 315 Watt 3100 K (Flower)|Clean white light. 3,100 degrees K color temperature, excellent, 92.6 CRI, 38,698 lumens at the 100 hour test (122Lm/W). The 3,100 degrees K has very high 1.856 PPFD per second light source. 4,200 degrees K color temperature, excellent 92.8 CRI, 34,625 lumens at the 100 hour test (110Lm/W). The 4,200 degrees K has very high 1.778 PPFD per second light source. Good lumen maintenance and continued excellent PPF performance throughout lamp life. Unique open rated lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use with a PGZX18 base.|http://www.horticulturesource.com/par-pro-lec-lamp-315-watt-3100-k-flower--p25048/|http://www.horticulturesource.com/images/901642.jpg|55.0000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps||901644|25282|Par Pro LEC Lamp 315 Watt 4200 K (Veg)|Clean white light. 3,100 degrees K color temperature, excellent, 92.6 CRI, 38,698 lumens at the 100 hour test (122Lm/W). The 3,100 degrees K has very high 1.856 PPFD per second light source. 4,200 degrees K color temperature, excellent 92.8 CRI, 34,625 lumens at the 100 hour test (110Lm/W). The 4,200 degrees K has very high 1.778 PPFD per second light source. Good lumen maintenance and continued excellent PPF performance throughout lamp life. Unique open rated lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use with a PGZX18 base.|http://www.horticulturesource.com/par-pro-lec-lamp-315-watt-4200-k-veg--p25282/|http://www.horticulturesource.com/images/901644.jpg|55.0000|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|Philips|dl-790998|26048|Philips GreenPower CDM Lamp 315 Watt Elite MW 3100K|This 3,100 degrees K Green Power Philips lamp features superior color quality and very crisp white light. Incredibly high 1.95 PPF (photosynthetic photon flux) per watt per second light source. High 92 CRI, 33,000 initial lumens (105Lm/W). High 90% lumen maintenance at 8,000 hr/High 85% maintenance at 20,000 hr. Double glass jacketed lamp is rated for either open fixture use (without glass lens) or enclosed fixture use (with glass lens).|http://www.horticulturesource.com/philips-philips-greenpower-cdm-lamp-315-watt-elite-mw-3100k-p26048/|http://www.horticulturesource.com/images/790998.jpg|75.1600|USD Grow Lamps, Tubes & Bulbs - High Pressure Sodium (HPS), Metal Halide (MH), T5, T8, T10, T12, HQI, LED, etc. > 315W CMH PGZ18 / CDM T12 Lamps|SUNMASTER|dl-SM80440|26225|Sunmaster 315W CMH Full Nova|Sunmaster 315W CMH Full Nova|http://www.horticulturesource.com/sunmaster-sunmaster-315w-cmh-full-nova-p26225/|http://www.horticulturesource.com/images/SM80440.jpg|75.4000|USD Complete Hydroponics, Aeroponics & Soil Grow Systems, Parts, Trays, Reservoirs, etc. > Aquaculture, Aquarium & Water Garden||748300|16088|Back to the Roots - Aquafarm 3 Gallon Fish Tank, 12" X 8" X 12"|Close Looped Ecosystem based on the ancient and sustainable method of farming known as Aquaponics. 3 gallon AquaFarm uses waste from your pet fish to naturally fertilize the plants above. In turn, the plants clean the water for your fish so that you don't have to! Includes everything needed to get started: 5 grow pots, pump, gravel for tank and Growstones for pots, organic seeds from Seeds of Change (Genovese Basil and Wheatgrass), all-natural aquatic supplies and natural fish food from Kordon HomeGrownPonics and a coupon for a Betta fish from Petco. Designed and manufactured in California, USA.|http://www.horticulturesource.com/back-to-the-roots-aquafarm-3-gallon-fish-tank-12-x-8-x-12--p16088/|http://www.horticulturesource.com/images/748300.png|59.9900|USD Complete Hydroponics, Aeroponics & Soil Grow Systems, Parts, Trays, Reservoirs, etc. > Aquaculture, Aquarium & Water Garden||dl-630001|21754|AquaBox Complete Aquaponics Kit|R4 AQUAPONIC SYSTEMS are hand crafted and built in Northern California. The Natural beauty of the wood has been kept intact, making every system unique and one of a kind. This living art brings together the natural balance of nature and humans helping each other to live better. This relationship was realized by the ancients (The Hanging Gardens of Babylon one of the Seven Wonders of the World) and is being remembered today in our aquaponic system designs. These Pairidaeza (architectural style of garden design) consume carbon and produce both food and oxygen. Aquaponics Box Kit INCLUDES: - (1) Custom wood flood table frame - (1) Custom wood 30 Gallon Reservoir frame - (1) 30 Gallon Reservoir - (1) Flood table - (2) Root Royale Hydro Clay Pebbles (50L/13Gal Bag) - (1) Water Pump - (1) Drain tube - (1) Fill/Drain Fitting - (1) AquaCycle Aquaponics Fish-less Cycling Kit Unit ships on a pallet and cannot be shipped by fedex or ups|http://www.horticulturesource.com/aquabox-complete-aquaponics-kit-p21754/|http://www.horticulturesource.com/images/dl-630001.png|1100.8400|USD Complete Hydroponics, Aeroponics & Soil Grow Systems, Parts, Trays, Reservoirs, etc. > Aquaculture, Aquarium & Water Garden||hf-BRWG001|23504|Back to the Roots Water Garden|CLOSED-LOOP ECOSYSTEM. This 3-gallon fish tank is a closed-loop, self-cleaning ecosystem. Using the science of aquaponics, the fish waste naturally fertilizes the plants above, and the plants, in turn, clean the water for the fish. Great for small pet fish and growing fresh herbs above.INCLUDES: 3-gallon tank, water pump, all-natural aquatic supplies, organic seeds, 5 grow pots, fish food, and a coupon for a 99 cent Betta fish from Petco.andnbsp;|http://www.horticulturesource.com/back-to-the-roots-water-garden-p23504/|http://www.horticulturesource.com/images/BRWG001.jpg|59.9900|USD Complete Hydroponics, Aeroponics & Soil Grow Systems, Parts, Trays, Reservoirs, etc. > Aquaculture, Aquarium & Water Garden||hf-BRWG002|25336|Back to the Roots Water Garden 2|Back to the Roots Water Garden 2 is a self-cleaning fish tank that grows organic sprouts and herbs. In this low-maintenance, mini aquaponics ecosystem, the fish feed the plants and plants clean the water - no water changes required! Perfect as a hands-on family or classroom project, or a unique gift for the pet or gardening enthusiast in your life.Beautifully redesigned 3-gallon fish tank features:Elegant curved edgesDouble the growing spaceCustom Grow Pods for easy planting and harvestingImproved Grow Bed for optimal water circulationConvenient tank access to customize your beta's homeIncludes everything you need to get started:Fish tank and gravelOrganic seeds and grow stonesNatural fertilizerCoupon for a Beta fishFish foodSilent, submersible water pumpDesigned and manufactured in the USA|http://www.horticulturesource.com/back-to-the-roots-water-garden-2-p25336/|http://www.horticulturesource.com/images/BRWG002.jpg|74.4600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|716052|1698|Bluelab Nutrient Probe Care Kit Conductivity (14/Cs)|CF/EC cleaning kit: Full color laminated instructions Conductivity standard solution De-canter vessel Liquid probe cleaner Chamois (probe cleaning instrument)|http://www.horticulturesource.com/bluelab-bluelab-nutrient-probe-care-kit-conductivity-14-cs--p1698/|http://www.horticulturesource.com/images/716052-.png|7.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|716301|1705|MI M10004-B 20ML PACKET 4.01 BUFFER CASE OF 25|Milwaukee pH Monitor [model SMS110] M10004-B 20ML PACKET 4.01 BUFF Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.47 LB Case Dimensions6.5 x 7. x 3.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-m10004-b-20ml-packet-4-01-buffer-case-of-25-p1705/|http://www.horticulturesource.com/images/716301.jpeg|15.5300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|716306|1706|MI M10007B 20ML PACKET 7.01 BUFFER CASE OF 25|Milwaukee pH Monitor [model SMS110] M10007B-20ML PACKET 7.01 BUFFE Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.46 LB Case Dimensions6.5 x 7. x 3.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-m10007b-20ml-packet-7-01-buffer-case-of-25-p1706/|http://www.horticulturesource.com/images/716301.jpeg|18.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|716461|1723|TECHNAFLORA pH UP 1 LITER (12/CASE)|Technaflora pH Up and pH Down TECHNAFLORA PH UP 1 LITER (12/CS) Technafloras pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH, and nitric acid to lower pH. While ensuring stringent industry safety standards are met, Technafloras pH Up and pH Down are potent and effective in small doses. Manufacturer's Product Information 2007 MSRP Each $9.33 Case Weight30.48 LB Case Dimensions13. x 10. x 9.25 IN Case Quantity12 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/technaflora-technaflora-ph-up-1-liter-12-case--p1723/|http://www.horticulturesource.com/images/716461.jpg|7.0800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|716462|1724|TECHNAFLORA pH UP 4 LITER (4/CASE)|Technaflora pH Up and pH Down TECHNAFLORA PH UP 4 LITER(4/CA Technafloras pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH, and nitric acid to lower pH. While ensuring stringent industry safety standards are met, Technafloras pH Up and pH Down are potent and effective in small doses. Manufacturer's Product Information 2007 MSRP Each $18.68 Case Weight40.92 LB Case Dimensions12. x 12. x 12. IN Case Quantity4 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/technaflora-technaflora-ph-up-4-liter-4-case--p1724/|http://www.horticulturesource.com/images/716462.jpg|17.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|716464|1725|TECHNAFLORA pH DOWN 1 LITER (12/CASE)|Technaflora pH Up and pH Down TECHNAFLORA PH DOWN 1 LITER(12 Technafloras pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH, and nitric acid to lower pH. While ensuring stringent industry safety standards are met, Technafloras pH Up and pH Down are potent and effective in small doses. Manufacturer's Product Information 2007 MSRP Each $9.33 Case Weight30.48 LB Case Dimensions13. x 10. x 9.25 IN Case Quantity12 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/technaflora-technaflora-ph-down-1-liter-12-case--p1725/|http://www.horticulturesource.com/images/716464.jpg|7.0800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|716465|1726|TECHNAFLORA pH DOWN 4 LITER (4/CASE)|Technaflora pH Up and pH Down TECHNAFLORA PH DOWN 4 LITER(4/ Technafloras pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH, and nitric acid to lower pH. While ensuring stringent industry safety standards are met, Technafloras pH Up and pH Down are potent and effective in small doses. Manufacturer's Product Information 2007 MSRP Each $18.68 Case Weight40.92 LB Case Dimensions12. x 12. x 12. IN Case Quantity4 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/technaflora-technaflora-ph-down-4-liter-4-case--p1726/|http://www.horticulturesource.com/images/716465.jpg|17.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|716574|1899|CW 1382 CALIBRATION SOLUTION 4 OZ (12/CASE)|Control Wizard 1382 Calibration Solution CONTROL WIZARD 1382 CALIBRATION SOLUTION Control Wizard Products 1382 Conductivity Standard. Use to calibrate all meters that use the 1 EC to 500 ppm water standard. Manufacturer's Product Information 2007 MSRP Each $4.95 Case Weight3.88 LB Case Dimensions7. x 5.25 x 5.25 IN Case Quantity12|http://www.horticulturesource.com/control-wizard-cw-1382-calibration-solution-4-oz-12-case--p1899/|http://www.horticulturesource.com/images/716574.jpg|2.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722005|1927|1500 PPM CAL SOLUTION 8OZ (12/CASE)|Genesis pH Calibration Tri-Pack Solutions 1500 PPM REFERENCE SOLUTION 8OZ (12/ User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $6.95 Case Weight7.85 LB Case Dimensions7.25 x 7.25 x 7.25 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-1500-ppm-cal-solution-8oz-12-case--p1927/|http://www.horticulturesource.com/images/722005.jpg|4.9600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722015|1928|pH 4.01 CAL SOLUTION 8OZ (12/CASE)|Genesis pH Calibration Tri-Pack Solutions PH 4.01 CAL SOLUTION 8OZ (12/C User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $6.95 Case Weight7.95 LB Case Dimensions7.5 x 7.5 x 7.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-4-01-cal-solution-8oz-12-case--p1928/|http://www.horticulturesource.com/images/722015.jpg|4.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722020|1929|pH 4.01 CAL SOLUTION QUART QUART (12/CASE)|Genesis pH Calibration Tri-Pack Solutions PH 4.01 CAL SOLUTION QUART (12 User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $24.95 Case Weight29.02 LB Case Dimensions13.75 x 10.5 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-4-01-cal-solution-quart-quart-12-case--p1929/|http://www.horticulturesource.com/images/INST_722015.jpg|13.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722030|1930|pH 7.0 CAL SOLUTION 8OZ (12/CASE)|Genesis pH Calibration Tri-Pack Solutions PH 7.01 CAL SOLUTION 8OZ (12/CA User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $6.95 Case Weight7.95 LB Case Dimensions7.5 x 7.5 x 7.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-7-0-cal-solution-8oz-12-case--p1930/|http://www.horticulturesource.com/images/722030.jpg|4.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722035|1931|pH 7.0 CAL SOLUTION QUART (12/CASE)|Genesis pH Calibration Tri-Pack Solutions PH 7.01 CAL SOLUTION QUART (12/ User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $24.95 Case Weight29.02 LB Case Dimensions13.75 x 10.5 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-7-0-cal-solution-quart-12-case--p1931/|http://www.horticulturesource.com/images/INST_722015.jpg|13.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722036|1932|M10038B 20ML PACKET 6.44 PPT TDS SOLUTION CASE OF 25|Milwaukee Waterproof TDS Tester [model T75] M10038B-20ML PACKET 6.44 PPT T Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.40 LB Case Dimensions6.5 x 7. x 3.5 IN Case Quantity1|http://www.horticulturesource.com/general-hydroponics-m10038b-20ml-packet-6-44-ppt-tds-solution-case-of-25-p1932/|http://www.horticulturesource.com/images/722036.jpg|19.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722090|1934|pH UP QUART (12/CASE)|General Hydroponics pH Up Liquid PH UP QUART (12/CASE) Concentrated base formula is used to raise the pH in a reservoir. Manufacturer's Product Information 2007 MSRP Each $12.95 Case Weight31.25 LB Case Dimensions13.5 x 10.25 x 9.5 IN Case Quantity12 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/general-hydroponics-ph-up-quart-12-case--p1934/|http://www.horticulturesource.com/images/722090.jpg|6.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722095|1935|pH UP GALLON (4/CASE)|General Hydroponics pH Up Liquid PH UP GALLON (4/CASE) Concentrated base formula is used to raise the pH in a reservoir. Manufacturer's Product Information 2007 MSRP Each $29.95 Case Weight40.55 LB Case Dimensions12.5 x 12.5 x 12.5 IN Case Quantity4 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/general-hydroponics-ph-up-gallon-4-case--p1935/|http://www.horticulturesource.com/images/722095.jpg|16.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722105|1936|GH pH Up Dry 2.2lb (12/Cs)|General Hydroponics pH Up Dry PH UP 2.2LBS DRY (12/CASE) This powder based formula is made to raise the pH in a reservoir. Lightweight in comparison to liquids. Manufacturer's Product Information 2007 MSRP Each $12.95 Case Weight20.25 LB Case Dimensions13.75 x 7.75 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-gh-ph-up-dry-2-2lb-12-cs--p1936/|http://www.horticulturesource.com/images/722105.jpg|9.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722120|1937|pH DOWN QUART (12/CASE)|General Hydroponics pH Down Liquid PH DOWN LIQUID QUART (12/CASE) This concentrated acid formula is used to lower the pH in a reservoir. Manufacturer's Product Information 2007 MSRP Each $12.95 Case Weight31.25 LB Case Dimensions13.5 x 10.25 x 9.5 IN Case Quantity12 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/general-hydroponics-ph-down-quart-12-case--p1937/|http://www.horticulturesource.com/images/722120.jpg|6.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722125|1938|pH DOWN 1 GALLON (4/CASE)|General Hydroponicsand#8482; pH Down Liquid PH DOWN LIQUID GALLON (4/CASE) This concentrated acid formula is used to lower the pH in a reservoir. Manufacturer's Product Information 2007 MSRP Each $29.95 Case Quantity4 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/general-hydroponics-ph-down-1-gallon-4-case--p1938/|http://www.horticulturesource.com/images/phdown.jpg|16.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|722130|1939|GH pH Down Dry 2.2lb (12/Cs)|General Hydroponics pH Down Dry PH DOWN 2.2LBS DRY (12/CASE) This powdered acid formula is easy to handle and ship. Lightweight in comparison to liquids. Widely recognized as a consistent and reliable product. Manufacturer's Product Information 2007 MSRP Each $12.95 Case Weight20.25 LB Case Dimensions13.75 x 7.75 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/general-hydroponics-gh-ph-down-dry-2-2lb-12-cs--p1939/|http://www.horticulturesource.com/images/722130.jpg|7.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|722155|1941|EARTH JUICE NATURAL pH CONTROLLER UP 2 LB (12/CASE)|Earth Juice Natural pH Controller Up and Down EARTH JUICE NATURAL UP 2LB (12 An enlightened concept in pH control, a crystallized pH adjuster for the professional and hobbyist. For soil, soilless, hydroponic, hydroorganic and foliar applications. For use with organic and synthetic fertilizers, herbicides and pesticides. Manufacturer's Product Information 2007 MSRP Each $13.95 Case Weight27.14 LB Case Dimensions14. x 10.75 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-ph-controller-up-2-lb-12-case--p1941/|http://www.horticulturesource.com/images/722155.jpg|15.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|722175|1942|EARTH JUICE NATURAL pH CONTROLLER DOWN 2 LB (12/CASE)|Earth Juice Natural pH Controller Up andamp; Down EARTH JUICE NATURAL DOWN 2LB ( An enlightened concept in pH control, a crystallized pH adjuster for the professional andamp; hobbyist. For soil, soilless, hydroponic, hydroorganic andamp; foliar applications. For use with organic andamp; synthetic fertilizers, herbicides and pesticides. Manufacturer's Product Information 2007 MSRP Each $13.95 Case Weight27.14 LB Case Dimensions14. x 10.75 x 9.5 IN Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-ph-controller-down-2-lb-12-case--p1942/|http://www.horticulturesource.com/images/EJ_NATpHControllerUpDown.jpg|14.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722300|1943|Milwaukee MA9004 - 4.01 Buffer Solution 220 ml 3 pack|Milwaukee standard calibration solutions are available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate.|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ma9004-4-01-buffer-solution-220-ml-3-pack-p1943/|http://www.horticulturesource.com/images/722300-new.jpg|19.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722305|1944|Milwaukee MA9007 - 7.01 Buffer Solution 220 ml (CASE of 16)|Milwaukee standard calibration solutions are available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate.|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ma9007-7-01-buffer-solution-220-ml-case-of-16--p1944/|http://www.horticulturesource.com/images/722300-new.jpg|131.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722310|1945|MI MA9015 220ML STORAGE SOLUTION (16/CASE)|Milwaukee pH Monitor [model SMS110] MA9015-220ML STORAGE SOLUTION Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $9.95 Case Weight0.56 LB Case Dimensions2. x 2. x 5.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma9015-220ml-storage-solution-16-case--p1945/|http://www.horticulturesource.com/images/722310.jpg|7.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722315|1946|MI MA9016 220ML PROBE CLEANING SOLUTION (16/CASE)|Milwaukee pH Monitor [model SMS110] MA9016-220ML PROBE CLEANING SO Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $9.95 Case Weight0.57 LB Case Dimensions2. x 2. x 5.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma9016-220ml-probe-cleaning-solution-16-case--p1946/|http://www.horticulturesource.com/images/722315.jpg|7.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722325|1947|Milwaukee MA9062 - 220 ml Packet 1382 PPM TDS Solution Pack of 3|Milwaukee standard calibration solutions are available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate.|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ma9062-220-ml-packet-1382-ppm-tds-solution-pack-of-3-p1947/|http://www.horticulturesource.com/images/722300-new.jpg|18.1200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722340|1949|MI MA9061 220ML 1413 US/CM EC SOLUTION (16/CASE)|Milwaukee Smart pH/EC/TDS Combination Meter [model SM802] MA9061-220ML 1413 US/EC SOLUTI Model SM802 Smart pH/EC/TDS combination meter, range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of 0.20 pH and 2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 S/cm. Manufacturer's Product Information 2007 MSRP Each $9.95 Case Weight0.55 LB Case Dimensions2. x 2. x 5.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma9061-220ml-1413-us-cm-ec-solution-16-case--p1949/|http://www.horticulturesource.com/images/722340.jpg|8.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722341|1950|MI M10031B 20ML PACKET 1413 US/EC SOLUTION CASE OF 25|For Milwaukee Smart pH/EC/TDS Combination Meter [model SM802] M10031B- 20ML PACKET 1413 US/E Model SM802 Smart pH/EC/TDS combination meter, range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of 0.20 pH and 2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 S/cm. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.44 LB Case Dimensions6.5 x 7. x 3.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-m10031b-20ml-packet-1413-us-ec-solution-case-of-25-p1950/|http://www.horticulturesource.com/images/722341.jpg|19.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|722346|1951|MI M10442B 20ML PACKET 1500PPM SOLUTION CASE OF 25|Milwaukee Smart pH/EC/TDS Combination Meter [model SM802] M10442B-20ML PACKET 1500PPM SO Model SM802 Smart pH/EC/TDS combination meter, range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of 0.20 pH and 2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 S/cm. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.57 LB Case Dimensions6.75 x 6.25 x 3.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-m10442b-20ml-packet-1500ppm-solution-case-of-25-p1951/|http://www.horticulturesource.com/images/722346.jpg|19.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722420|1952|TWIN PACK pH CALIBRATION SOLUTIONS (pH 4.01 and pH 7.01) 8 OZ (10/CASE)|Genesis pH Calibration Kit [model PHB-T8-C andamp; PHB-T16-C] PH CALIBRATION TWIN PACK 4.01 and 7.01 8OZ These solutions are used to calibrate pH meters to assure they are accurate and working properly.You should check your pH meter frequently because the properties of the meters membrane is constantly changing from normal use and aging. We recommend a two point calibration between 4.0 and 7.0 to assure that your meter is accurate across the scale. This is why the Genesis solution is available in twin packs of 4.0 and 7.0. Manufacturer's Product Information 2007 MSRP Each $17.5 Case Quantity10|http://www.horticulturesource.com/sun-system-sunlight-supply-twin-pack-ph-calibration-solutions-ph-4-01-ph-7-01-8-oz-10-case--p1952/|http://www.horticulturesource.com/images/722420.jpg|9.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722425|1953|TWIN PACK pH CALIBRATION SOLUTIONS (pH 4.01 and pH 7.01) 16 OZ (6/CASE)|Genesis pH Calibration Kit [model PHB-T8-C andamp; PHB-T16-C] PH CALIBRATION TWIN PACK 4.01and7.01 16OZ These solutions are used to calibrate pH meters to assure they are accurate and working properly.You should check your pH meter frequently because the properties of the meters membrane is constantly changing from normal use and aging. We recommend a two point calibration between 4.0 and 7.0 to assure that your meter is accurate across the scale. This is why the Genesis solution is available in twin packs of 4.0 and 7.0. Manufacturer's Product Information 2007 MSRP Each $25 Case Quantity6|http://www.horticulturesource.com/sun-system-sunlight-supply-twin-pack-ph-calibration-solutions-ph-4-01-ph-7-01-16-oz-6-case--p1953/|http://www.horticulturesource.com/images/pHTwinPack-sm.jpg|10.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722430|1954|TWIN PACK ELECTRODE CLEANER SOLUTIONS PART A and B 8 OZ (10/CASE)|Genesis Electrode Cleaning Solutions [model ECS-T8-C andamp; ECS-T16-C] ELECTRODE CLEANER TWIN PACK 8OZ (10/CS) Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum. Soak tip in part A for 5 min, then part B for 5 min and then back in part A for 5 more minutes and rinse with tap water. Manufacturer's Product Information 2007 MSRP Each $17.5 Case Weight13.15 LB Case Dimensions10. x 8. x 7.25 IN Case Quantity10|http://www.horticulturesource.com/sun-system-sunlight-supply-twin-pack-electrode-cleaner-solutions-part-a-b-8-oz-10-case--p1954/|http://www.horticulturesource.com/images/722430.jpg|5.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722435|1955|TWIN PACK ELECTRODE CLEANER SOLUTIONS PART A and B 16 OZ E|__ELECTRODE CLEANER TWIN PACK16OZ (6/CS)Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum. Soak tip in part A for 5 min, then part B for 5 min and then back in part A for 5 more minutes and rinse with tap water.11. x 8. x 8.25 IN15.24 LBpH / EC / TDS METERS and SOLUTIONS|http://www.horticulturesource.com/sun-system-sunlight-supply-twin-pack-electrode-cleaner-solutions-part-a-b-16-oz-e-p1955/|http://www.horticulturesource.com/images/722435.jpg|17.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722440|1956|pH ELECTRODE STORAGE SOLUTIONS 8 OZ (20/CASE)|Genesis pH Electrode Storage Solutions ELECTRODE STORAGE SOLUTION 8OZ (20/CS) Use to store your pH meter electrode between use. This solution is designed to keep your electrode sensing membrane and reference junction clean and unclogged and ready for use. Store you electrode directly in a small cup of solution or saturate a sponge in the cap of your meter for storage between use. This will prevent your permeable glass membrane from becoming dry and from mineral deposits clogging the surface. This solution is designed to equalize the osmotic pressure of the reference solution in your meter junction to keep the reference solution from seeping out and prematurely aging your meter. Should your electrode membrane dry out soak it in this solution for at least two hours before use. NEVER STORE AN ELECTRODE IN DISTILLED OR DEIONIZED WATER. Manufacturer's Product Information 2007 MSRP Each $8.75 Case Weight13.15 LB Case Dimensions10. x 8. x 7.25 IN Case Quantity20|http://www.horticulturesource.com/sun-system-sunlight-supply-ph-electrode-storage-solutions-8-oz-20-case--p1956/|http://www.horticulturesource.com/images/722440.jpg|2.8400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722445|1957|pH ELECTRODE STORAGE SOLUTIONS 16 OZ (12/CASE)|Genesis pH Electrode Storage Solutions ELECTRODE STORAGE SOLUTION 16OZ (12/CS) Use to store your pH meter electrode between use. This solution is designed to keep your electrode sensing membrane and reference junction clean and unclogged and ready for use. Store you electrode directly in a small cup of solution or saturate a sponge in the cap of your meter for storage between use. This will prevent your permeable glass membrane from becoming dry and from mineral deposits clogging the surface. This solution is designed to equalize the osmotic pressure of the reference solution in your meter junction to keep the reference solution from seeping out and prematurely aging your meter. Should your electrode membrane dry out soak it in this solution for at least two hours before use. NEVER STORE AN ELECTRODE IN DISTILLED OR DEIONIZED WATER. Manufacturer's Product Information 2007 MSRP Each $12.5 Case Weight15.24 LB Case Dimensions11. x 8. x 8.25 IN Case Quantity12|http://www.horticulturesource.com/sun-system-sunlight-supply-ph-electrode-storage-solutions-16-oz-12-case--p1957/|http://www.horticulturesource.com/images/pHElectrodeStorage-sm.jpg|3.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722450|1958|TRI-PACK METER MAINTENANCE SOLUTION - (ECS A, B ESS) 8 OZ (6/C|__METER MAINTENANCE TRI-PACK 8OZ (6/CS)General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used..5pH / EC / TDS METERS and SOLUTIONS|http://www.horticulturesource.com/sun-system-sunlight-supply-tri-pack-meter-maintenance-solution-ecs-a-b-ess-8-oz-6-c-p1958/|http://www.horticulturesource.com/images/722450.jpg|18.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722455|1959|TRI-PACK METER CALIBRATION SOLUTION (pH7.01, 1413uS andESS) 8 OZ|TRI-PACK METER CALIBRATION SOLUTION (pH7.01, 1413uS andESS) 8 OZ (6/CASE). Genesis Tri-Pack Storage Solutions. User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. (Price applies to EACH).|http://www.horticulturesource.com/sun-system-sunlight-supply-tri-pack-meter-calibration-solution-ph7-01-1413us-ess-8-oz-p1959/|http://www.horticulturesource.com/images/722455.jpg|18.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Sun System / Sunlight Supply|722460|1960|TRI-PACK pH CALIBRATION SOLUTIONS (pH 4.01 pH 7.01 and ESS) 8 OZ(6/CASE)|Genesis Tri-Pack Storage Solutions PH CALIBRATION TRI-PACK 4.01and7.01 (6/CS) User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters. Manufacturer's Product Information 2007 MSRP Each $26.25 Case Quantity6|http://www.horticulturesource.com/sun-system-sunlight-supply-tri-pack-ph-calibration-solutions-ph-4-01-ph-7-01-ess-8-oz-6-case--p1960/|http://www.horticulturesource.com/images/722460.jpg|12.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT750|3293|4 oz. Calibration (Buffer) Solution Kit. 4 fl oz (each)|4 oz. Calibration Solution Kit.ContainsOne (1) 4 oz. bottle pH 4 Calibration Solution.One (1) 4 oz. bottle pH 7 Calibration Solution.One (1) 4 oz. bottle 1382PPM Calibration Solution.For use with the 24-7 Nutrient Monitor.|http://www.horticulturesource.com/control-wizard-4-oz-calibration-buffer-solution-kit-4-fl-oz-each--p3293/|http://www.horticulturesource.com/images/nt750infopic1.jpg|13.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|FE520|3932|pH UP. 2 lb|Earth Juice pH UPRaise pH with these all natural pH adjusting crystals. Earth Juice Natural pH Up can be used to adjust fertilizer and foliar spray solution for a much more effective use and faster absorption of nutrients by plants. Optimal pH range for fertilizer/nutrient solution for most plant and turf is 5.5 - 6.5. Add crystals in small amounts. Mix solution thoroughly and adjust pH prior to application. Use the solution that day. Will vastly improve all fertilizer solutions performance. 2 lb. bottle.|http://www.horticulturesource.com/earth-juice-ph-up-2-lb-p3932/|http://www.horticulturesource.com/images/fe520infopic1.jpg|19.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|FE523|3933|pH Down. 2 lb|Earth Juice pH DownLower pH with these all natural pH adjusting crystals. Earth Juice Natural pH Down can be used to adjust fertilizer and foliar spray solution for a much more effective use and faster absorption of nutrients by plants. Optimal pH range for fertilizer/nutrient solution for most plant and turf is 5.5-6.5. Mix solution thoroughly and adjust pH prior to application. Use the solution that day. Will vastly improve all fertilizer solutions performance. Earth Juice Natural pH Down will "soften" hard water, increasing the effectiveness of insecticides and herbicides, too! 2 lb. bottle.|http://www.horticulturesource.com/earth-juice-ph-down-2-lb-p3933/|http://www.horticulturesource.com/images/fe523infopic1.jpg|17.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|HY216|3934|pH UP. 32 fl oz|GENERAL HYDROPONICS PH UP 32 Fluid Ounces.|http://www.horticulturesource.com/general-hydroponics-ph-up-32-fl-oz-p3934/|http://www.horticulturesource.com/images/hy216infopic1.jpg|12.5874|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|HY217|3935|pH UP. 1 Gallon|GENERAL HYDROPONICS PH UP 1 Gallon. *** Not UPS Shippable ***|http://www.horticulturesource.com/general-hydroponics-ph-up-1-gallon-p3935/|http://www.horticulturesource.com/images/hy217infopic1.jpg|29.1114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|HY219|3936|pH Down. 32 fl oz|GENERAL HYDROPONICS PH DOWN 32 Fluid Ounces.|http://www.horticulturesource.com/general-hydroponics-ph-down-32-fl-oz-p3936/|http://www.horticulturesource.com/images/hy219infopic1.jpg|12.5874|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|HY220|3937|pH Down. 1 Gallon|GENERAL HYDROPONICS PH DOWN 1 Gallon.|http://www.horticulturesource.com/general-hydroponics-ph-down-1-gallon-p3937/|http://www.horticulturesource.com/images/hy220infopic1.jpg|29.1114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY400|3938|pH UP. 8 fl oz|VITA GROW pH UP 8 Fluid Ounce Bottle. Potassium Hydroxide. Use to raise pH in hydroponic systems.|http://www.horticulturesource.com/vita-grow-ph-up-8-fl-oz-p3938/|http://www.horticulturesource.com/images/hy400infopic1.jpg|4.3740|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY402|3939|pH UP. 32 fl oz|VITA GROW pH UP 32 Fluid Ounce Bottle. Potassium Hydroxide. Use to correct pH of water and nutrients for plant growth. LTL only.|http://www.horticulturesource.com/vita-grow-ph-up-32-fl-oz-p3939/|http://www.horticulturesource.com/images/hy402infopic1.jpg|8.6994|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY404|3940|pH UP. 1 Gallon|VITA GROW pH UP 1 Gallon Bottle. Potassium Hydroxide. Use to raise pH in hydroponic systems. LTL only.|http://www.horticulturesource.com/vita-grow-ph-up-1-gallon-p3940/|http://www.horticulturesource.com/images/hy404infopic1.jpg|19.3914|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY406|3941|pH UP. 5 Gallon|VITA GROW pH UP 5 Gallon Pail. Potassium Hydroxide. Used to raise the pH of water and nutrient for plant growth.|http://www.horticulturesource.com/vita-grow-ph-up-5-gallon-p3941/|http://www.horticulturesource.com/images/hy406infopic1.jpg|77.7114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||HY410|3942|pH Down. 8 fl oz|VITA GROW PH DOWN 8 Fluid Ounce Bottle. Phosphoric Acid. Used to correct the pH of water and nutrients for plant growth.|http://www.horticulturesource.com/ph-down-8-fl-oz-p3942/|http://www.horticulturesource.com/images/hy410infopic1.jpg|4.3740|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY412|3943|pH Down. 32 fl oz|VITA GROW PH DOWN 32 Fluid Ounce Bottle. Phosphoric Acid.|http://www.horticulturesource.com/vita-grow-ph-down-32-fl-oz-p3943/|http://www.horticulturesource.com/images/hy412infopic1.jpg|8.6994|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY414|3944|pH Down. 1 Gallon (Special Order)|VITA GROW PH DOWN 1 Gallon Bottle. Phosphoric Acid. Not UPS Shippable. Special Order only.|http://www.horticulturesource.com/vita-grow-ph-down-1-gallon-special-order--p3944/|http://www.horticulturesource.com/images/hy414infopic1.jpg|19.3914|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vita Grow|HY416|3945|pH Down. 5 Gallon (Special Order)|VITA GROW PH DOWN 5 Gallon Pail. Phosphoric Acid. Not UPS Shippable. Special Order only.|http://www.horticulturesource.com/vita-grow-ph-down-5-gallon-special-order--p3945/|http://www.horticulturesource.com/images/hy416infopic1.jpg|77.7114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT690|3946|pH 4 Buffer Solution. 4 fl oz|Control Wizard Products 4.0 pH Buffer Solution 4 oz. bottle. Can be used to calibrate Hanna, Myron L., Oakton, and other brands of pH meters.|http://www.horticulturesource.com/control-wizard-ph-4-buffer-solution-4-fl-oz-p3946/|http://www.horticulturesource.com/images/nt690infopic1.jpg|4.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT695|3947|pH 4 Buffer Solution. 16 fl oz|Control Wizard Products 4.0 pH Buffer Solution 16 oz. bottle. Can be used to calibrate Hanna, Myron L., Oakton, and other brands of pH meters.|http://www.horticulturesource.com/control-wizard-ph-4-buffer-solution-16-fl-oz-p3947/|http://www.horticulturesource.com/images/nt695infopic1.jpg|8.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT700|3948|pH 7 Buffer Solution. 4 fl oz|Control Wizard Products 7.0 pH Buffer Solution 4 oz. bottle. Can be used to calibrate Hanna, Myron L., Oakton and other brands of pH meters.|http://www.horticulturesource.com/control-wizard-ph-7-buffer-solution-4-fl-oz-p3948/|http://www.horticulturesource.com/images/nt700infopic1.jpg|4.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT705|3949|pH 7 Buffer Solution. 16 fl oz|Control Wizard Products 7.0 pH Buffer Solution 16 oz. Used to calibrate Hanna, Myron L., Oakton and other brands of pH meters.|http://www.horticulturesource.com/control-wizard-ph-7-buffer-solution-16-fl-oz-p3949/|http://www.horticulturesource.com/images/nt705infopic1.jpg|8.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||NT710|3950|pH Pro 6.9 Calibration Solution. 5cc|Shindengen pH Pro 6.9 Calibration Solution 5cc bottle|http://www.horticulturesource.com/ph-pro-6-9-calibration-solution-5cc-p3950/|http://www.horticulturesource.com/images/nt710infopic1.jpg|4.8114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||NT711|3951|pH Pro 7.0 Calibration Solution. 5cc|Shindengen pH Pro 7.0 Calibration Solution - 5cc bottle. pH Calibrating buffer for all brands of pH meters.|http://www.horticulturesource.com/ph-pro-7-0-calibration-solution-5cc-p3951/|http://www.horticulturesource.com/images/nt711infopic1.jpg|4.8114|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT720|3952|1500 PPM Buffer Solution. 4 fl oz|Control Wizard Products 442-1500 PPM Buffer Solution 4 oz. bottle. Used to calibrate Myron L. and other TDS meters that use the 442 standard or .7 ratio of PPM to EC standard.Suitable for meters that use the horticultural/agricultural standards of .68 and .7. This is to say that 1 EC is = to 700 ppm total dissolved salts (TDS). Older style meters would use the water standard or .5 calibration solutions of 1382 ppm.|http://www.horticulturesource.com/control-wizard-1500-ppm-buffer-solution-4-fl-oz-p3952/|http://www.horticulturesource.com/images/nt720infopic1.jpg|5.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT725|3953|1500 PPM Buffer Solution. 16 fl oz|Control Wizard Products 442-1500 PPM Buffer Solution 16 oz. bottle. Used to calibrate Myron L. and other TDS meters that use the 442 standard.|http://www.horticulturesource.com/control-wizard-1500-ppm-buffer-solution-16-fl-oz-p3953/|http://www.horticulturesource.com/images/nt725infopic1.jpg|9.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT730|3954|1382 PPM Buffer Solution. 4 fl oz|Control Wizard Products 1382 Conductivity Standard. 4 oz. bottle. Use to calibrate all meters that use the 1 EC to 500 ppm water standard. Adwa, Hanna, Oakton, Milwaukie. If your meter won't calibrate chances are you are using the wrong standard to calibrate it.|http://www.horticulturesource.com/control-wizard-1382-ppm-buffer-solution-4-fl-oz-p3954/|http://www.horticulturesource.com/images/nt730infopic1.jpg|5.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT735|3955|1382 PPM Buffer Solution. 16 fl oz|Control Wizard Products 1382 Conductivity Standard. 16 oz. bottle. Use to calibrate all meters that use the 1 EC to 500 ppm water standard. Adwa, Hanna, Oakton, Milwaukie. If your meter won't calibrate properly chances are you are using the wrong standard to calibrate it.|http://www.horticulturesource.com/control-wizard-1382-ppm-buffer-solution-16-fl-oz-p3955/|http://www.horticulturesource.com/images/nt730infopic1.jpg|9.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|716110|4614|OAKTON PH BUFFER SOLUTION 4.01 500 ML|For Oakton EcoTestrand#8482; PH1 and other pH testers.|http://www.horticulturesource.com/oakton-oakton-ph-buffer-solution-4-01-500-ml-p4614/|http://www.horticulturesource.com/images/716110.jpg|14.1100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|716112|4615|OAKTON PH BUFFER SOLUTION 7.01 500 ML|For Oakton EcoTestrand#8482; PH1 and other pH testers.|http://www.horticulturesource.com/oakton-oakton-ph-buffer-solution-7-01-500-ml-p4615/|http://www.horticulturesource.com/images/716110.jpg|15.0700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|HLC-1e|4849|HID LIGHTING CONTROLLER, HI TEMP SHUTDOWN, HEATING THERMOSTAT 50-115'F, WITH RESET BUTTON AND INDICATOR LIGHT|C.A.P. High Temp Shutdown (HLC-1e)HIGH TEMP SHUTDOWN The HLC-1e is used as a high temperature shutdown by plugging your lights or light controller into the outlet and setting the maximum temperature that your growing environment can sustain. If this setting is exceeded, your lights will turn off and an indicator light will flash to let you know that your temperature set point was exceeded. This is cheap insurance for your garden. Comes with a 12' remote temperature sensor. The HLC-1e is rated at 15 amps @ 120 volts. 3 year no hassle warranty Manufacturer's Product Information 2007 MSRP Each $84.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-hid-lighting-controller-hi-temp-shutdown-heating-thermostat-50-115-f-with-reset-button-and-indicator-light-p4849/|http://www.horticulturesource.com/images/HLC-1e_qtr.JPG|50.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|SSPH-001|5171|STORAGE SOLUTION (220ML)|Storage Solution (220 ml) (SSPH-001)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $8.25|http://www.horticulturesource.com/c-a-p-custom-automated-products-storage-solution-220ml--p5171/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|16.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCDN2G|5583|BC PH DOWN 10 LITER|BC PH DOWN 10 Liter / 2 Gallon (BCDN2G)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $35.95 Unit Weight48 Case Weight48 Case Dimensions13 3/4 x 9 3/4 x 14 3/4|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-down-10-liter-p5583/|http://www.horticulturesource.com/images/pHDown_Tflora06 copy.JPG|50.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCDNGA|5584|BC PH DOWN 4 Liter / 1 Gallon|BC PH DOWN 4 Liter / 1 Gallon (BCDNGA)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $18.95 Unit Weight40 Case Weight40 Case Dimensions12 x 12 x 11 7/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-down-4-liter-1-gallon-p5584/|http://www.horticulturesource.com/images/pHDown_Tflora06 copy.JPG|22.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCDNQT|5585|BC PH DOWN 1 Liter / 1 Quart|BC PH DOWN 1 Liter / 1 Quart (BCDNQT)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $9.95 Unit Weight31 Case Weight31 Case Dimensions13 x 9 3/4 x 9 1/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-down-1-liter-1-quart-p5585/|http://www.horticulturesource.com/images/pHDown_Tflora06 copy.JPG|9.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCUP2G|5619|BC PH UP 10 LITERS|BC PH UP 10 Liter / 2 GallonS (BCUP2G)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $35.95 Unit Weight47 Case Weight47 Case Dimensions13 3/4 x 9 3/4 x 14 3/4|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-up-10-liters-p5619/|http://www.horticulturesource.com/images/pHUp_TFlora06.JPG|50.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCUPGA|5620|BC PH UP 4 Liter / 1 GallonS|BC PH UP 4 Liter / 1 GallonS (BCUPGA)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $18.95 Unit Weight42 Case Weight42 Case Dimensions12 x 12 x 11 7/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-up-4-liter-1-gallons-p5620/|http://www.horticulturesource.com/images/pHUp_TFlora06.JPG|22.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|BCUPQT|5621|BC PH UP 1 Liter / 1 QuartS|BC PH UP 1 Liter / 1 QuartS (BCUPQT)LIQUID PH ADJUSTMENTp H Up and p H Down that enables the gardener to moderateand maintain optimum pH levels. Both pH-balancing aids aremanufactured using the highest-quality ingredients: potassiumhydroxide to raise pH, and nitric acid to lower pH. While ensuringstringent industry safety standards are met, Technaflora?s pH Upand pH Down are potent and effective in small doses. Manufacturer's Product Information 2008 MSRP $9.95 Unit Weight31 Case Weight31 Case Dimensions13 x 9 3/4 x 9 1/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-bc-ph-up-1-liter-1-quarts-p5621/|http://www.horticulturesource.com/images/pHUp_TFlora06.JPG|9.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716845|6014|HANNA PH 4 CAL SOLUTION 16OZ 12/CASE|Hanna pH4 and pH7 Calibration SolutionsMSRP: $17.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-4-cal-solution-16oz-12-case-p6014/|http://www.horticulturesource.com/images/716845.jpeg|11.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716850|6015|HANNA PH 7 CAL SOLUTION 16OZ 12/CASE|Hanna pH4 and pH7 Calibration SolutionsMSRP: $17.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-7-cal-solution-16oz-12-case-p6015/|http://www.horticulturesource.com/images/716845.jpeg|11.4600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2815|8023|pH Up Quart Base|pH Up Quart Base (eco-2815)pH Up 1 qt Base pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid.SKU: GH1522 Weight: 2.6 lbs.Package Dimensions: 3.2L x 3.2W x 8.8HSuggested Retail: $129.12 Manufacturer's Product Information MSRP $10.76|http://www.horticulturesource.com/general-hydroponics-ph-up-quart-base-p8023/|http://www.horticulturesource.com/images/eco-2815.jpg|6.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2825|8024|pH Up Gallon Base|pH Up Gallon Base (eco-2825)pH Up 1 gallon Base pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid.SKU: GH1523 Weight: 9.7 lbs.Package Dimensions: 6.1L x 5.9W x 11.6HSuggested Retail: $107.60 Manufacturer's Product Information MSRP $26.9|http://www.horticulturesource.com/general-hydroponics-ph-up-gallon-base-p8024/|http://www.horticulturesource.com/images/eco-2815.jpg|15.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2817|8025|pH Up (dry) 1.5 lbs|pH Up (dry) 1.5 lbs (eco-2817)pH Up Dry 1.5lbs. Base pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid.SKU: GH1525 Weight: 1.6 lbs.Package Dimensions: 4.1L x 3.4W x 4.6HSuggested Retail: $10.76 Manufacturer's Product Information MSRP $10.76|http://www.horticulturesource.com/general-hydroponics-ph-up-dry-1-5-lbs-p8025/|http://www.horticulturesource.com/images/eco-2817.jpg|8.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2817A|8026|pH Up (dry) 4 lbs|pH Up (dry) 4 lbs (eco-2817A)pH Up Dry 4 lbs. Base pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid. Manufacturer's Product Information MSRP $19.4|http://www.horticulturesource.com/general-hydroponics-ph-up-dry-4-lbs-p8026/|http://www.horticulturesource.com/images/eco-2817.jpg|14.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2816|8027|pH Down Quart Acid|pH Down Quart Acid (eco-2816) pH Down 1 qt Acid pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid.SKU: GH1532 Weight: 2.6 lbs.Package Dimensions: 3.2L x 3.3W x 8.7HSuggested Retail: $129.12 Manufacturer's Product Information MSRP $10.76|http://www.horticulturesource.com/general-hydroponics-ph-down-quart-acid-p8027/|http://www.horticulturesource.com/images/eco-2816.jpg|6.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|eco-2826|8028|pH Down Gallon Acid|pH Down Gallon Acid (eco-2826)pH Down 1 gal AcidpH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up and pH DownGeneral Hydroponics pH adjusters pH Upbase formulated using Potassium Hydroxide andPotassium Carbonate. pH Down acid formulatedusing food grade Phosphoric acid.SKU: GH1533 Weight: 10.2 lbs.Package Dimensions: 5.9L x 5.9W x 11.7HSuggested Retail: $107.60 Manufacturer's Product Information MSRP $26.9|http://www.horticulturesource.com/general-hydroponics-ph-down-gallon-acid-p8028/|http://www.horticulturesource.com/images/eco-2815.jpg|15.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5487|8121|8 oz. pH 4.01 Solution (16/Case)|8 oz. pH 4.01 Solution (16/Case) (eco-5487)8 oz. pH 4.01 Solution sold individually Manufacturer's Product Information MSRP $14|http://www.horticulturesource.com/hanna-instruments-8-oz-ph-4-01-solution-16-case--p8121/|http://www.horticulturesource.com/images/eco-5487.jpg|10.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5488|8122|8 oz. pH 7.01 Solution (16/Case)|8 oz. pH 7.01 Solution (16/Case) (eco-5488)8 oz. pH 7.01 Solution sold individually Manufacturer's Product Information MSRP $14|http://www.horticulturesource.com/hanna-instruments-8-oz-ph-7-01-solution-16-case--p8122/|http://www.horticulturesource.com/images/eco-5487.jpg|10.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5489|8123|8 oz. 1500 PPM Solution (16/Case)|8 oz. 1500 PPM Solution (16/Case) (eco-5489)8 oz. 1500 PPM Solution sold individually Manufacturer's Product Information MSRP $14|http://www.horticulturesource.com/hanna-instruments-8-oz-1500-ppm-solution-16-case--p8123/|http://www.horticulturesource.com/images/eco-5487.jpg|10.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5486|8124|8 oz. Storage Solution (16/Case)|8 oz. Storage Solution (16/Case) (eco-5486)8 oz. Storage Solution sold individually Manufacturer's Product Information MSRP $14|http://www.horticulturesource.com/hanna-instruments-8-oz-storage-solution-16-case--p8124/|http://www.horticulturesource.com/images/eco-5487.jpg|10.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5485|8125|8 oz. Cleaning Solution (16/Case)|8 oz. Cleaning Solution (16/Case) (eco-5485)8 oz. Cleaning Solution sold individually Manufacturer's Product Information MSRP $14|http://www.horticulturesource.com/hanna-instruments-8-oz-cleaning-solution-16-case--p8125/|http://www.horticulturesource.com/images/eco-5487.jpg|10.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716878|8337|HANNA CLEANING SOLUTION 20ML (Case of 25)|Hanna 20 ml Packet SolutionHANNA packet solutions are prepared according to precise formulas and are standardized with a pH meter calibrated according to the NIST standards. The 20 mL sachets are single-dose and are ready to use.|http://www.horticulturesource.com/hanna-instruments-hanna-cleaning-solution-20ml-case-of-25--p8337/|http://www.horticulturesource.com/images/716878.jpg|23.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716879|8338|HANNA GROCHEK 1382 PPM TDS SOLUTION 20 ML (CASE of 25) MODEL HI 70032P (FULL CASE QUANTITIES ONLY)|Hanna 20 ml Packet Solution HANNA 1382 PPM TDS SOL 20ML 25/CSMSRP: $1.29 each packet|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-1382-ppm-tds-solution-20-ml-case-of-25-model-hi-70032p-full-case-quantities-only--p8338/|http://www.horticulturesource.com/images/716875.jpeg|19.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716880|8339|HANNA GROCHEK 1500 PPM TDS SOLUTION 20 ML (CASE of 25) MODEL HI 70442P (FULL CASE QUANTITIES ONLY)|Hanna 20 ml Packet Solution HANNA 1500 PPM TDS SOL 20ML 25/CSMSRP: $1.29 each packet|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-1500-ppm-tds-solution-20-ml-case-of-25-model-hi-70442p-full-case-quantities-only--p8339/|http://www.horticulturesource.com/images/716875.jpeg|19.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT775|8552|CWP Instruments Store It! Electrode Storing Solution. 16 fl. oz.|CWP Instruments Store It! Electrode Storing Solution. 16 fl. oz.Store It! is a solution that is used when storing pH electrodes. Electrodes that are stored dry often times do not work properly when it comes time to use them. Use Store it! between tests to keep the glass bulb on your pH meter from drying out.|http://www.horticulturesource.com/control-wizard-cwp-instruments-store-it-electrode-storing-solution-16-fl-oz--p8552/|http://www.horticulturesource.com/images/nt770infopic1.jpg|9.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Control Wizard|NT770|8553|CWP Instruments Store It! Electrode Storing Solution. 4 fl. oz.|CWP Instruments Store It! Electrode Storing Solution. 4 fl. oz. Store It! is a solution that is used when storing pH electrodes. Electrodes that are stored dry often times do not work properly when it comes time to use them. Use Store it! between tests to keep the glass bulb on your pH meter from drying out.|http://www.horticulturesource.com/control-wizard-cwp-instruments-store-it-electrode-storing-solution-4-fl-oz--p8553/|http://www.horticulturesource.com/images/nt770infopic1.jpg|4.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|716170|8783|HM 1000 PPM CALIBRATION SOLUTION|HM 1000 PPM CALIBRATION SOLUTION (716170)HM Digital TDS Calibration SolutionFor optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges. NaCl calibration solution. Comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.|http://www.horticulturesource.com/hm-digital-hm-1000-ppm-calibration-solution-p8783/|http://www.horticulturesource.com/images/716170.jpeg|4.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716817|8786|HANNA GROCHEK CLEAN and CALIBRATION CHECK SOLUTION (25/CASE) (SPECIAL ORDER ONLY)|HANNA GROCHEK CLEAN and CALIBRATION CHECK SOLUTION (25/CASE) (SPECIAL ORDER ONLY) (716817) FOR Hanna Waterproof pH/EC/TDS Temp Meter W H Electrode Diagnostic HI 9813-6pH electrodes are commonly designed to produce and output signal equal to 0 mV when immersed in a solution with pH 7. But a constant output value at pH 7 occurs as a result of certain adverse events, such as: A broken bulb in the pH electrode, A short circuit in the cable or connector, or Magnetic force leakage in the cable or connector (for example, in case of excessive humidity).In these situations, the instrument displays a false reading at pH 7 and the user may not be aware that corrective measures are necessary; particularly if the user is anticipating a pH neutral reading. To avoid this problem, HANNA developed F.S.T. technology for HI 9813-6. With this special security system, a system failure will force a fixed value close to pH 4, rather than pH 7, and render the problem clearer to the user.For added confidence in your measurements, the meter is equipped with two LEDs and a "CHECK" button. While pressing this button, upon immersing the electrode in the Cal-Check solution HI 50021P, one of the LEDs will light up to indicate the status of the meter. The green LED ("OK") indicates the probe is working correctly, while the red LED ("CandC" Clean and Cal) indicates the electrode needs attention. Manufacturer's Product Information MSRP $46.95|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-clean-calibration-check-solution-25-case-special-order-only--p8786/|http://www.horticulturesource.com/images/716815.jpeg|33.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|722173|8787|EARTH JUICE NATURAL pH CONTROLLER DOWN 2 LB (12/CASE)|EARTH JUICE NATURAL pH CONTROLLER DOWN 2 LB (12/CASE) (722173)Earth Juice Natural pH Controller Up and DownAn enlightened concept in pH control, a crystallized pH adjuster for the professional and hobbyist. For soil, soilless, hydroponic, hydro-organic and foliar applications. For use with organic and synthetic fertilizers, herbicides and pesticides. Manufacturer's Product Information MSRP $15.9|http://www.horticulturesource.com/earth-juice-earth-juice-natural-ph-controller-down-2-lb-12-case--p8787/|http://www.horticulturesource.com/images/722173.jpeg|13.8200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||721695|9904|PH DOWN 15% QUART|Grow More pH Down 15%Convenient ready to use liquids, concentrated, H.P. filtered, fast acting, high purity food grade ingredients. pH Down - to lower pH of nutrient solution with phosphoric acid.MSRP: $8.59|http://www.horticulturesource.com/ph-down-15-quart-p9904/|http://www.horticulturesource.com/images/721695.jpg|6.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||721700|9905|PH DOWN 15% GALLON|Grow More pH Down 15%Convenient ready to use liquids, concentrated, H.P. filtered, fast acting, high purity food grade ingredients. pH Down - to lower pH of nutrient solution with phosphoric acid.MSRP: $19.89|http://www.horticulturesource.com/ph-down-15-gallon-p9905/|http://www.horticulturesource.com/images/721695.jpg|15.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||721685|9906|PH UP 15% QUART|Grow More pH Up 15%Convenient ready to use liquids, concentrated, H.P. filtered, fast acting, high purity food grade ingredients. pH Up - To raise pH of nutrient solution with Potassium Hydroxide.MSRP: $8.59|http://www.horticulturesource.com/ph-up-15-quart-p9906/|http://www.horticulturesource.com/images/721685.jpg|6.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||721690|9907|PH UP 15% GALLON|Grow More pH Up 15%Convenient ready to use liquids, concentrated, H.P. filtered, fast acting, high purity food grade ingredients. pH Up - To raise pH of nutrient solution with Potassium Hydroxide.MSRP: $19.89|http://www.horticulturesource.com/ph-up-15-gallon-p9907/|http://www.horticulturesource.com/images/721685.jpg|15.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732899|11046|Bluelab 2.77EC Conductivity Solution 250 ml (6/Cs)|Bluelab 2.77 EC Conductivity Standard SolutionThe 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. These solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-2-77ec-conductivity-solution-250-ml-6-cs--p11046/|http://www.horticulturesource.com/images/732899.jpg|5.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732901|11047|Bluelab 2.77EC Conductivity Solution 500 ml (6/Cs)|Bluelab 2.77 EC Conductivity Standard SolutionThe 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. These solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-2-77ec-conductivity-solution-500-ml-6-cs--p11047/|http://www.horticulturesource.com/images/732899.jpg|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732897|11048|Bluelab pH 4.0 Calibration Solution 250ml (6/Cs)|Bluelab pH 4.0 Calibration SolutionpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-4-0-calibration-solution-250ml-6-cs--p11048/|http://www.horticulturesource.com/images/732897.png|5.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732898|11049|Bluelab pH 4.0 Calibration Solution 500ml (6/Cs)|Bluelab pH 4.0 Calibration SolutionpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-4-0-calibration-solution-500ml-6-cs--p11049/|http://www.horticulturesource.com/images/732897.png|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732895|11050|Bluelab pH 7.0 Calibration Solution 250ml (6/Cs)|Bluelab pH 7.0 Calibration SolutionpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-7-0-calibration-solution-250ml-6-cs--p11050/|http://www.horticulturesource.com/images/732895.png|5.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732896|11051|Bluelab pH 7.0 Calibration Solution 500ml (6/Cs)|Bluelab pH 7.0 Calibration SolutionpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-7-0-calibration-solution-500ml-6-cs--p11051/|http://www.horticulturesource.com/images/732895.png|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHUQT|11351|X Nutrients pH Up Quart|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-up-quart-p11351/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|9.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHUGA|11352|X Nutrients pH Up Gallon|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-up-gallon-p11352/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|24.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHU2G|11353|X Nutrients pH Up 2.5 Gallons|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-up-2-5-gallons-p11353/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|44.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHU5G|11354|X Nutrients pH Up 5 Gallons|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-up-5-gallons-p11354/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|70.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHDQT|11355|X Nutrients pH Down Quart|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-down-quart-p11355/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|9.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHDGA|11356|X Nutrients pH Down Gallon|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-down-gallon-p11356/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|24.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHD2G|11357|X Nutrients pH Down 2.5 Gallons|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-down-2-5-gallons-p11357/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|44.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|C.A.P. Custom Automated Products|XNUTPHD5G|11358|X Nutrients pH Down 5 Gallons|X Nutrients pH Up and Down pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.|http://www.horticulturesource.com/c-a-p-custom-automated-products-x-nutrients-ph-down-5-gallons-p11358/|http://www.horticulturesource.com/images/XNUTPHUQT.jpg|70.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716472|12427|Hanna 4.01, 7.01, and Cleaning Solution|Hanna Instruments Cleaning KitsSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.Item #716472: This kit includes:(5) pH 4.01 buffer solution sachets * HI70004P(5) pH 7.01 buffer solution sachets * HI70007P(5) General cleaning solution sachets * HI700661P|http://www.horticulturesource.com/hanna-instruments-hanna-4-01-7-01-and-cleaning-solution-p12427/|http://www.horticulturesource.com/images/716472.png|15.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716474|12428|Hanna 7.01, 1413 uS/cm, and Cleaning Solution|Hanna Instruments Cleaning KitsSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.Item #716474:This kit includes:(5) pH 7.01 buffer solution sachets * HI70007P(5) 1413 and#956;S/cm EC solutions sachets * HI70031P(5) General cleaning solution sachets HI700661P|http://www.horticulturesource.com/hanna-instruments-hanna-7-01-1413-us-cm-and-cleaning-solution-p12428/|http://www.horticulturesource.com/images/716472.png|15.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716476|12429|Hanna 7.01, 1500 ppm, and Cleaning Solution|Hanna Instruments Cleaning KitsSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.Item #716476:This kit includes:(5) pH 7.01 buffer solution sachets * HI70007P(5) 1500 ppm TDS solution sachets * HI70442P(5) General cleaning solution sachets * HI700661P|http://www.horticulturesource.com/hanna-instruments-hanna-7-01-1500-ppm-and-cleaning-solution-p12429/|http://www.horticulturesource.com/images/716472.png|15.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716468|12430|Hanna Storage Solution 16oz|Hanna Storage SolutionTo minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist.Store the electrode with a few drops of HI 70300 storage or pH 7 buffer solution in the protective cap.|http://www.horticulturesource.com/hanna-instruments-hanna-storage-solution-16oz-p12430/|http://www.horticulturesource.com/images/716468.png|10.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|716470|12431|Hanna Cleaning Solution 16oz|Hanna Cleaning SolutionClean the liquid junction of your electrodes once a day or at least once a week to prevent clogging and to maintain accuracy. Immerse the electrode in the proper cleaning solution for about 5 minutes.|http://www.horticulturesource.com/hanna-instruments-hanna-cleaning-solution-16oz-p12431/|http://www.horticulturesource.com/images/716470.png|10.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|722180|12767|Botanicare PH Up Quart (12/Cs)|Botanicare pH Up and pH DownWith plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.andnbsp;Botanicare's pH Up consists of a 29% concentratedandnbsp; Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.andnbsp; Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/botanicare-botanicare-ph-up-quart-12-cs--p12767/|http://www.horticulturesource.com/images/722180.png|7.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|722185|12768|Botanicare PH Up Gallon (4/Cs)|Botanicare pH Up and pH DownWith plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.andnbsp;Botanicare's pH Up consists of a 29% concentratedandnbsp; Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.andnbsp; Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/botanicare-botanicare-ph-up-gallon-4-cs--p12768/|http://www.horticulturesource.com/images/722180.png|16.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|722190|12769|Botanicare PH Down Quart (12/Cs)|Botanicare pH Up and pH DownWith plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.andnbsp;Botanicare's pH Up consists of a 29% concentratedandnbsp; Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.andnbsp; Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/botanicare-botanicare-ph-down-quart-12-cs--p12769/|http://www.horticulturesource.com/images/722180.png|7.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|722195|12770|Botanicare PH Down Gallon (4/Cs)|Botanicare pH Up and pH DownWith plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.andnbsp;Botanicare's pH Up consists of a 29% concentratedandnbsp; Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.andnbsp; Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/botanicare-botanicare-ph-down-gallon-4-cs--p12770/|http://www.horticulturesource.com/images/722180.png|16.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|716150|13064|HM Digital pH Electrode Storage Solution (10/Cs)|HM Digital - pH Electrode Storage SolutionAlways make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with this specially formulated KCl storage solution for pH and electrodes.Total Volume: 60cc. Not for calibration. To calibrate your pH meter, use a pH buffer solution.|http://www.horticulturesource.com/hm-digital-hm-digital-ph-electrode-storage-solution-10-cs--p13064/|http://www.horticulturesource.com/images/716150.png|4.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|716056|13391|Bluelab pH Probe KCI Storage Solution 100 ml (6/Cs)|Bluelab pH Probe KCl Storage SolutionThe perfect solution to store and hydrate your Bluelab pH products. Bluelab pH Probe KCl Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCl solution to store the pH pen robe after use and hydrate monthly. Bluelab pH Probe KCl Storage Solution is manufactured to high laboratory standards.|http://www.horticulturesource.com/bluelab-bluelab-ph-probe-kci-storage-solution-100-ml-6-cs--p13391/|http://www.horticulturesource.com/images/716056.png|8.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|eco-5524E|13686|pH and TDS Cleaning and Calibration Solution Kit (HI pHTDSKIT)|Attractive, easily shelved packaging, with both written and photographic instructions on solution use. Aggressively priced to encourage customers to purchase more maintenance solutions.Includes five each of pH 7.01, 1500 ppm, and cleaning solution (20 mL sachets)|http://www.horticulturesource.com/hanna-instruments-ph-tds-cleaning-calibration-solution-kit-hi-phtdskit--p13686/|http://www.horticulturesource.com/images/eco-5524E.jpg|16.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732894|14903|Bluelab pH 7.0 Calibration Solution 20ml Sachets (Case of 25)|Bluelab Calibration and Conductivity Solution SachetsBluelab's 2.77EC Conductivity Solution, pH 7.0 and pH 4.0 Calibration Solutions are now available in 20ml sachets. Each sold separately. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). The 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-7-0-calibration-solution-20ml-sachets-case-of-25--p14903/|http://www.horticulturesource.com/images/732894.png|29.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732903|14904|Bluelab pH 4.0 Calibration Solution 20ml Sachets (Case of 25)|Bluelab Calibration and Conductivity Solution SachetsBluelab's 2.77EC Conductivity Solution, pH 7.0 and pH 4.0 Calibration Solutions are now available in 20ml sachets. Each sold separately. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). The 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-ph-4-0-calibration-solution-20ml-sachets-case-of-25--p14904/|http://www.horticulturesource.com/images/732894.png|29.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|732904|14905|Bluelab 2.77EC Conductivity Solutiuon 20ml Sachets (Case of 25)|Bluelab Calibration and Conductivity Solution SachetsBluelab's 2.77EC Conductivity Solution, pH 7.0 and pH 4.0 Calibration Solutions are now available in 20ml sachets. Each sold separately. pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). The 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.|http://www.horticulturesource.com/bluelab-bluelab-2-77ec-conductivity-solutiuon-20ml-sachets-case-of-25--p14905/|http://www.horticulturesource.com/images/732894.png|29.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHUP-5GA|15542|X Nutrients pH Up (5 Gallon)|X Nutrients pH Up (5 Gallon) (XNHPHUP-5GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $99|http://www.horticulturesource.com/x-nutrients-ph-up-5-gallon--p15542/|http://www.horticulturesource.com/images/PH_Uo_2.jpg|56.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHUP-2.5GA|15541|X Nutrients pH Up (2.5 Gallon)|X Nutrients pH Up (2.5 Gallon) (XNHPHUP-2.5GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $59|http://www.horticulturesource.com/x-nutrients-ph-up-2-5-gallon--p15541/|http://www.horticulturesource.com/images/PH_Uo_2.jpg|42.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHUP-1QT|15540|X Nutrients pH Up (1 Quart)|X Nutrients pH Up (1 Quart) (XNHPHUP-1QT)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $11|http://www.horticulturesource.com/x-nutrients-ph-up-1-quart--p15540/|http://www.horticulturesource.com/images/PH_Uo_32.jpg|7.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHUP-1GA|15539|X Nutrients pH Up (1 Gallon)|X Nutrients pH Up (1 Gallon) (XNHPHUP-1GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $27|http://www.horticulturesource.com/x-nutrients-ph-up-1-gallon--p15539/|http://www.horticulturesource.com/images/PH_Uo_2.jpg|19.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHDOWN-5GA|15538|X Nutrients pH Down (5 Gallon)|X Nutrients pH Down (5 Gallon) (XNHPHDOWN-5GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $99|http://www.horticulturesource.com/x-nutrients-ph-down-5-gallon--p15538/|http://www.horticulturesource.com/images/PH_Down_2.jpg|113.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHDOWN-2.5GA|15537|X Nutrients pH Down (2.5 Gallon)|X Nutrients pH Down (2.5 Gallon) (XNHPHDOWN-2.5GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $59|http://www.horticulturesource.com/x-nutrients-ph-down-2-5-gallon--p15537/|http://www.horticulturesource.com/images/PH_Down_2.jpg|60.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHDOWN-1QT|15536|X Nutrients pH Down Concentrate (1 Quart)|X Nutrients ph Down is now concentrated to 30%, three times the amount of our original formula! As with all products we formulate, our goal is to provide our customers with the best products possible at affordable prices. A little bit of the new ph Down concentrate will go a long way, please add small doses at a time and re-test your ph levels until the desired ph is reached. pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH.A pH meter or strips can be used to measure the pH of water, nutrient solution and soil.Available in1 Quart1 Gallon2.5 Gallons5 GallonsGeneral Usage:Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts.Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts.One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2.Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0.When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake.Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution.X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums.|http://www.horticulturesource.com/x-nutrients-ph-down-concentrate-1-quart--p15536/|http://www.horticulturesource.com/images/PH_Down_32.jpg|9.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-XNHPHDOWN-1GA|15535|X Nutrients pH Down (1 Gallon)|X Nutrients pH Down (1 Gallon) (XNHPHDOWN-1GA)pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $27|http://www.horticulturesource.com/x-nutrients-ph-down-1-gallon--p15535/|http://www.horticulturesource.com/images/PH_Down_2.jpg|27.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-xnHPHUP-2.5G|15686|X Nutrients pH Up (2.5 Gallon)|X Nutrients pH Up (2.5 Gallon) pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $59|http://www.horticulturesource.com/x-nutrients-ph-up-2-5-gallon--p15686/|http://www.horticulturesource.com/images/PH_Uo_2.jpg|34.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-xnHPHDOWN-1Q|15687|X Nutrients pH Down (1 Quart)|X Nutrients pH Down (1 Quart) pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $11|http://www.horticulturesource.com/x-nutrients-ph-down-1-quart--p15687/|http://www.horticulturesource.com/images/PH_Down_32.jpg|9.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-xnHPHDOWN-1G|15688|X Nutrients pH Down (1 Gallon)|X Nutrients pH Down (1 Gallon) pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $27|http://www.horticulturesource.com/x-nutrients-ph-down-1-gallon--p15688/|http://www.horticulturesource.com/images/PH_Down_2.jpg|15.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-HPHDOWN-2.5G|15689|X Nutrients pH Down (2.5 Gallon)|X Nutrients pH Down (2.5 Gallon) pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $59|http://www.horticulturesource.com/x-nutrients-ph-down-2-5-gallon--p15689/|http://www.horticulturesource.com/images/PH_Down_2.jpg|34.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-xnHPHDOWN-5G|15690|X Nutrients pH Down (5 Gallon)|X Nutrients pH Down (5 Gallon) pH is the measurement of water quality. Soil or water can be too acidic or too alkaline. A pH of 7 is neutral. In general plants respond best to a pH between 5.5 and 6.5 for maximum nutrient absorbency. pH-Up and pH-Down adjust the acid/alkaline balance of your water. pH that is either too high or low will prevent plants from absorbing nutrients. To make the most out of your nutrients, use pH-Up and pH-Down to regulate your pH. A pH meter or strips can be used to measure the pH of water, nutrient solution and soil. Available in 1 Quart 1 Gallon 2.5 Gallons 5 Gallons General Usage: Hydroponics - Use 1 mL per gallon in your reservoir as a starting point. Make sure the product is dissolved and mixed thoroughly (or cycled). Measure pH to determine additional amounts. Soil/Coco/Other medium - Use 1 mL per gallon in your water source as a starting point. Make sure the product is evenly distributed. Measure pH to determine additional amounts. One of the most overlooked aspects in effective gardening is pH. Without the proper pH balance, plants will not efficiently uptake nutrients. pH is measured on a scale of 1-14, 7 being neutral, less than 7 being acidic and above 7 considered a base. Here are some examples; pure water has a pH of 7, bleach has a pH of 13 and lemon juice has a pH of 2. Technical: pH has to do with the number of hydrogen ions. In water (H2O), there are a small number of molecules that dissociate or split up. These molecules loose a hydrogen ion and become hydroxyl ions (OH-). The lost hydrogen ion joins with other molecules to become hydronium ions (H3O+). In pure water, there is an equal number of hydrogen ions and hydroxyl ions which makes a pH of 7. In an acid, which has a pH of less than 7, there are more hydrogen ions. In a base, the opposite is true. The pH scale is logarithmic, which means that for each value change in pH there is a tenfold change in the number of hydrogen/hydroxyl ions. In other words a solution with a pH of 6.0 is ten times more acidic than a solution with a value of 7.0. When pH is not at the proper levels, a plant will lose its ability to absorb the essential elements required for healthy growth. This is why pH is so important. With X Nutrients pH Up and pH Down, you can easily adjust the pH to produce optimum growth results. Generally most plants prefer a slightly acidic environment, ranging from 5.8 - 6.5. When pH starts rising above 6.5, some of the nutrients will precipitate, or fall out of the solution, and stick to the walls of the reservoir. For example, iron will fall out of solution completely at a pH of 8.0. So if you are using a solution with a pH of 8.0, your plants will never get iron regardless of how much you use. Left uncorrected, this will result in an iron deficiency, slow growth, and eventually death. Below is a chart that shows some various elements and the effect pH has on absorption. You will notice that the greatest absorption of nutrients occurs from 5.8 - 6.5. Proper pH is especially important in hydroponic environments due to the fact that the plants are sitting in the same water for a long period of time. Alternative mediums such as various soils, coco, and rockwool, offer pH buffering making it more forgiving and offering a higher rate of success where pH is not constantly being monitored. Nonetheless, pH needs to be adjusted to ensure proper nutrient uptake. Checking pH in a nutrient solution is very easy. There are paper test strips, which are the most inexpensive way to check pH. These strips contain a dye that changes color according to pH. The most technical way to measure pH is a digital meter. There are various types available on the market with a wide range of prices depending on their accuracy and other features. Digital pH meters should be calibrated often as they tend to drift over time. Most pH meters should never be allowed to dry out and should be stored using a storage or buffer solution. X Nutrients pH Up and pH Down make it easy to adjust pH. Simply use the recommended dosage found on the label to increase or decrease pH. Make sure you are constantly monitoring the pH as you add more. What makes X Nutrients pH Up and pH Down a good product to work with is that we use a mid range concentration that makes it easy to dial in your ph to the perfect level. Higher concentration pH products are available on the market; however these products, due to their strength, tend to cost more and are difficult to work with. The higher concentration means that a little amount makes a huge difference in pH, and as a result your pH swings back and forth as you try to adjust it. X Nutrients pH is available in quarts, gallons, 2.5gal, 5gal, and 15 and 55 gallon drums. Manufacturer's Product Information MSRP $99|http://www.horticulturesource.com/x-nutrients-ph-down-5-gallon--p15690/|http://www.horticulturesource.com/images/xnHPHDOWN-5G.jpg|57.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Advanced Nutrients|dl-AN3800-14|15992|pH Down 1L|pH Down 1L pH Down 1L Manufacturer's Product Information MSRP $18.4|http://www.horticulturesource.com/advanced-nutrients-ph-down-1l-p15992/|http://www.horticulturesource.com/images/AN3800.jpg|18.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Advanced Nutrients|dl-AN3800-15|15993|pH Down 4L|pH Down 4L pH Down 4L Manufacturer's Product Information MSRP $52.14|http://www.horticulturesource.com/advanced-nutrients-ph-down-4l-p15993/|http://www.horticulturesource.com/images/AN3800.jpg|39.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Advanced Nutrients|dl-AN3850-14|15994|pH Up 1L|pH Up 1L pH Up 1L Manufacturer's Product Information MSRP $18.4|http://www.horticulturesource.com/advanced-nutrients-ph-up-1l-p15994/|http://www.horticulturesource.com/images/AN3850.jpg|13.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Advanced Nutrients|dl-AN3850-15|15995|pH Up 4L|pH Up 4L pH Up 4L Manufacturer's Product Information MSRP $52.14|http://www.horticulturesource.com/advanced-nutrients-ph-up-4l-p15995/|http://www.horticulturesource.com/images/AN3850.jpg|39.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746304|16157|Nectar for the Gods Hades Down Quart (12/Cs)|Nectar for the Gods - Hades DownThis blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't worry if you over shoot the down: just add some Olympus Up and see the benefits of adding more calcium.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-hades-down-quart-12-cs--p16157/|http://www.horticulturesource.com/images/746304.png|12.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746306|16158|Nectar for the Gods Hades Down Gallon (4/Cs)|Nectar for the Gods - Hades DownThis blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't worry if you over shoot the down: just add some Olympus Up and see the benefits of adding more calcium.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-hades-down-gallon-4-cs--p16158/|http://www.horticulturesource.com/images/746304.png|39.3300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746308|16159|Nectar for the Gods Hades Down 2.5 Gallon (2/Cs)|Nectar for the Gods - Hades DownThis blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't worry if you over shoot the down: just add some Olympus Up and see the benefits of adding more calcium.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-hades-down-2-5-gallon-2-cs--p16159/|http://www.horticulturesource.com/images/746304.png|81.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746310|16160|Nectar for the Gods Hades Down 5 Gallon|Nectar for the Gods - Hades DownThis blend of organic acids lowers your nutrient solution's pH. It's our pH down. Don't worry if you over shoot the down: just add some Olympus Up and see the benefits of adding more calcium.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-hades-down-5-gallon-p16160/|http://www.horticulturesource.com/images/746304.png|137.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746312|16161|Nectar for the Gods Olympus Up Quart (12/Cs)|Nectar for the Gods - Olympus UpOne of a kind in the industry. Olympus is derived from micronized limestone designed to not only raise the pH of your nutrient solution but also to buffer organic acids from healthy soil decomposition. The calcium in Olympus is also very effective at tying up salts in the medium. Olympus is a key component to the line by adding even more calcium for the plants to absorb.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-olympus-up-quart-12-cs--p16161/|http://www.horticulturesource.com/images/746312.png|8.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746314|16162|Nectar for the Gods Olympus Up Gallon (4/Cs)|Nectar for the Gods - Olympus UpOne of a kind in the industry. Olympus is derived from micronized limestone designed to not only raise the pH of your nutrient solution but also to buffer organic acids from healthy soil decomposition. The calcium in Olympus is also very effective at tying up salts in the medium. Olympus is a key component to the line by adding even more calcium for the plants to absorb.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-olympus-up-gallon-4-cs--p16162/|http://www.horticulturesource.com/images/746312.png|24.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746316|16163|Nectar for the Gods Olympus Up 2.5 Gallon (2/Cs)|Nectar for the Gods - Olympus UpOne of a kind in the industry. Olympus is derived from micronized limestone designed to not only raise the pH of your nutrient solution but also to buffer organic acids from healthy soil decomposition. The calcium in Olympus is also very effective at tying up salts in the medium. Olympus is a key component to the line by adding even more calcium for the plants to absorb.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-olympus-up-2-5-gallon-2-cs--p16163/|http://www.horticulturesource.com/images/746312.png|48.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oregon's Only Organics|746318|16164|Nectar for the Gods Olympus Up 5 Gallon|Nectar for the Gods - Olympus UpOne of a kind in the industry. Olympus is derived from micronized limestone designed to not only raise the pH of your nutrient solution but also to buffer organic acids from healthy soil decomposition. The calcium in Olympus is also very effective at tying up salts in the medium. Olympus is a key component to the line by adding even more calcium for the plants to absorb.|http://www.horticulturesource.com/oregon-s-only-organics-nectar-for-the-gods-olympus-up-5-gallon-p16164/|http://www.horticulturesource.com/images/746312.png|74.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||FE524|16273|Earth Juice Natural pH Down|1.6 lb.Lower pH with these all natural pH adjusting crystals. Earth Juice Natural pH Down can be used to adjust fertilizer and foliar spray solution for a much more effective use and faster absorption of nutrients by plants. Optimal pH range for fertilizer/nutrient solution for most plant and turf is 5.5-6.5. Mix solution thoroughly and adjust pH prior to application. Use the solution that day. Will vastly improve all fertilizer solutions performance. Earth Juice Natural pH Down will "soften" hard water, increasing the effectiveness of insecticides and herbicides, too!|http://www.horticulturesource.com/earth-juice-natural-ph-down-p16273/|http://www.horticulturesource.com/images/FE524.jpg|16.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|American Hydroponics|hf-AH88004|16964|Nutritest 2 oz Cal Sol 27.7 for Truncheon (Special Order)|American Hydroponics Nutritest 2 oz Cal Sol 27.7 for Truncheon (AH88004)Calibration solution for the commercial truncheon Manufacturer's Product Information MSRP each $4.95 Dimensions2.4 x 6.7 x 2.3 Case Quantity1|http://www.horticulturesource.com/american-hydroponics-nutritest-2-oz-cal-sol-27-7-for-truncheon-special-order--p16964/|http://www.horticulturesource.com/images/AH88004.jpg|3.2700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|hf-BCNSPHHGAL|17325|PH Up Gal, case of 4|Botanicare PH Up Gal (BCNSPHHGAL)With plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.Botanicare's pH Up consists of a 29% concentrated Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.andnbsp; Manufacturer's Product Information MSRP each $27.95 Dimensions2 x 7.5 x 5 Case Weight39 Case Quantity4|http://www.horticulturesource.com/botanicare-ph-up-gal-case-of-4-p17325/|http://www.horticulturesource.com/images/BCNSPHHGAL.jpg|61.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|hf-BCNSPHHQT|17326|PH Up Qt|Botanicare PH Up Qt (BCNSPHHQT)With plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.Botanicare's pH Up consists of a 29% concentrated Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.andnbsp; Manufacturer's Product Information MSRP each $11.95 Dimensions4.5 x 10.5 x 6.5 Case Weight29 Case Quantity12|http://www.horticulturesource.com/botanicare-ph-up-qt-p17326/|http://www.horticulturesource.com/images/BCNSPHHQT.jpg|78.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|hf-BCNSPHLGAL|17327|PH Down Gal, case of 4 (Special Order)|Botanicare PH Down Gal (BCNSPHLGAL)With plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.Botanicare's pH Up consists of a 29% concentrated Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.andnbsp; Manufacturer's Product Information MSRP each $27.95 Dimensions5.1 x 7.1 x 2.3 Case Weight39 Case Quantity4|http://www.horticulturesource.com/botanicare-ph-down-gal-case-of-4-special-order--p17327/|http://www.horticulturesource.com/images/BCNSPHLGAL.jpg|61.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Botanicare|hf-BCNSPHLQT|17328|PH Down Qt, case of 12 (Special Order)|Botanicare PH Down Qt (BCNSPHLQT)With plants, nutrient availability can be affected by soil or solution pH. pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance. Control pH levels, minimize problems and maximize your plants' full potential with Botanicare's pH Up and pH Down solutions.Botanicare's pH Up consists of a 29% concentrated Potassium Hydroxide solution that has an extremely low level of phytotoxicity and does not contain salts or chlorides.Botanicare's pH Down consists of a 29% concentrated Phosphoric Acid solution that rapidly lowers pH levels with its gentle, non-burning formula.andnbsp; Manufacturer's Product Information MSRP each $11.95 UPC757900000936 Dimensions14.75 x 23.5 x 14.75 Case Weight30 Case Quantity12|http://www.horticulturesource.com/botanicare-ph-down-qt-case-of-12-special-order--p17328/|http://www.horticulturesource.com/images/BCNSPHLQT.jpg|78.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU1008|17487|Bluelab pH Probe KCI Storage Solution|Bluelab Bluelab pH Probe KCI Storage Solution (BLU1008)The perfect solution to store and hydrate your Bluelab pH products.Bluelab knows it is extremely important to care for and store pH probes correctly. pH probes are sensitive glass instruments which age through normal use. The life and performance of pH probes is reduced heavily when they are stored dry.Bluelab pH Probe KCI Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCI solution to store the pH pen robe after use and hydrate monthly. Instructions are on the label of the bottle.Bluelab pH probe KCI Storage Solution is manufactured to high laboratory standards.Remember - keep your pH probe wet. Always. If it dries, it dies!andnbsp; Manufacturer's Product Information MSRP each $11.95 UPC9421024920012 Dimensions1.5 x 1.5 x 16.4 Case Weight2 Case Quantity6|http://www.horticulturesource.com/bluelab-bluelab-ph-probe-kci-storage-solution-p17487/|http://www.horticulturesource.com/images/BLU1008.jpg|9.4600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU27720|17500|2.77 pH Bluelab Cali Solution|Bluelab 2.77 pH Bluelab Cali Solution (BLU27720)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Many of Bluelab's conductivity equipment does not need calibrating as they are factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solutionto ensure you have adequately cleaned the EC/CF probe.andnbsp; Manufacturer's Product Information MSRP each $1.8 Dimensions3.54 x 0.2 x 3.86 Case Weight1 Case Quantity25|http://www.horticulturesource.com/bluelab-2-77-ph-bluelab-cali-solution-p17500/|http://www.horticulturesource.com/images/BLU27720.jpg|32.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU420|17501|4.0 pH Bluelab Calibration Solution 20ml, case of 25|Bluelab 4.0 pH Calib Solution 20 ml (BLU420)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Many of Bluelab's conductivity equipment does not need calibrating as they are factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.andnbsp; Manufacturer's Product Information MSRP each $1.8 UPC9421024920494 Dimensions4.92 x 3.23 x 9.76 Case Weight1 Case Quantity25|http://www.horticulturesource.com/bluelab-4-0-ph-bluelab-calibration-solution-20ml-case-of-25-p17501/|http://www.horticulturesource.com/images/BLU420.jpg|29.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU720|17503|7.0 pH Cali Solution 20 ml, case of 25|Bluelab 7.0 pH Cali Solution 20 ml (BLU720)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Many of Bluelab's conductivity equipment does not need calibrating as they are factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Manufacturer's Product Information MSRP each $1.8 UPC9421024920616 Dimensions3.78 x 8.58 x 5.12 Case Weight1 Case Quantity25|http://www.horticulturesource.com/bluelab-7-0-ph-cali-solution-20-ml-case-of-25-p17503/|http://www.horticulturesource.com/images/BLU720.jpg|29.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESCAL84|18130|Hydroponic Essentials Calibration 4.01 8oz|Hydroponic Essentials Hydroponic Essentials Calibration 4.01 8oz (ESCAL84)For the calibration of pH testers. Use in conjunction with pH Buffer 7. Manufacturer's Product Information MSRP each $7.95 UPC638104002431 Dimensions2 x 5 x 2 Case Weight12 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-calibration-4-01-8oz-p18130/|http://www.horticulturesource.com/images/ESCAL84.jpg|5.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESCAL87|18131|Hydroponic Essentials Calibration 7.0 8oz|Hydroponic Essentials Hydroponic Essentials Calibration 7.0 8oz (ESCAL87)For the calibration of pH testers. Use in conjunction with pH Buffer 4. Manufacturer's Product Information MSRP each $7.95 UPC638104002424 Dimensions3.25 x 9 x 3.25 Case Weight12 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-calibration-7-0-8oz-p18131/|http://www.horticulturesource.com/images/ESCAL87.jpg|5.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESCALQT4|18132|Hydroponic Essentials Calibration Qt 4.01|Hydroponic Essentials Hydroponic Essentials Calibration Qt 4.01 (ESCALQT4)For the calibration of pH testers. Use in conjunction with pH Buffer 7. Manufacturer's Product Information MSRP each $19.95 UPC638104002448 Dimensions3.25 x 8.6 x 3.25 Case Weight12 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-calibration-qt-4-01-p18132/|http://www.horticulturesource.com/images/ESCALQT4.jpg|13.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESCALQT7|18133|Hydroponic Essentials Calibration Qt 7.0|Hydroponic Essentials Hydroponic Essentials Calibration Qt 7.0 (ESCALQT7)For the calibration of pH testers. Use in conjunction with pH Buffer 4. Manufacturer's Product Information MSRP each $19.95 UPC638104002264 Dimensions6 x 11.7 x 6 Case Weight12 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-calibration-qt-7-0-p18133/|http://www.horticulturesource.com/images/ESCALQT7.jpg|13.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||hf-ESPHDGAL|18134|Hydroponic Essentials pH Down Gal, case of 4|Hydroponic Essentials Essentials pH Down Gal (ESPHDGAL)Easy control 15% strength water stabilizer. Decreases pH of nutrient solution. Manufacturer's Product Information MSRP each $27.49 UPC638104002240 Dimensions3.25 x 9.5 x 3.25 Case Weight36 Case Quantity4|http://www.horticulturesource.com/hydroponic-essentials-ph-down-gal-case-of-4-p18134/|http://www.horticulturesource.com/images/ESPHDGAL.jpg|60.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||hf-ESPHDQT|18135|Hydroponic Essentials pH Down Qt, case of 12|Hydroponic Essentials Essentials pH Down Qt (ESPHDQT)Easy control 15% strength water stabilizer. Decreases pH of nutrient solution. andnbsp; Manufacturer's Product Information MSRP each $10.83 UPC638104002479 Dimensions1.3 x 1.3 x 4.2 Case Weight30 Case Quantity12|http://www.horticulturesource.com/hydroponic-essentials-ph-down-qt-case-of-12-p18135/|http://www.horticulturesource.com/images/ESPHDQT.jpg|71.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESPHUGAL|18137|Hydroponic Essentials pH Up Gal, case of 4|Hydroponic Essentials Essentials pH Up Gal (ESPHUGAL)Easy control 15% strength water stabilizer. Increases pH of nutrient solution. Manufacturer's Product Information MSRP each $27.49 UPC638104002288 Dimensions2.38 x 8 x 2.38 Case Weight36 Case Quantity4|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-ph-up-gal-case-of-4-p18137/|http://www.horticulturesource.com/images/ESPHUGAL.jpg|60.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESPHUPT|18138|Hydroponic Essentials pH Up Pt, case of 12|Hydroponic Essentials Essentials pH Up Pt (ESPHUPT)Easy control 15% strength water stabilizer. Increases pH of nutrient solution. Manufacturer's Product Information MSRP each $7.5 UPC638104002301 Dimensions3.25 x 9.5 x 3.25 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-ph-up-pt-case-of-12-p18138/|http://www.horticulturesource.com/images/ESPHUPT.jpg|49.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-ESPHUQT|18139|Hydroponic Essentials pH Up Qt, case of 12|Hydroponic Essentials Essentials pH Up Qt (ESPHUQT)Easy control 15% strength water stabilizer. Increases pH of nutrient solution. Manufacturer's Product Information MSRP each $10.83 UPC892753002215 Dimensions6.5 x 14.25 x 8.75 Case Weight30 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-ph-up-qt-case-of-12-p18139/|http://www.horticulturesource.com/images/ESPHUQT.jpg|71.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1514|18469|pH Control Kit|General Hydroponics pH Control Kit (GH1514)Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution). Manufacturer's Product Information MSRP each $17.2 UPC793094015158 Dimensions2.6 x 1 x 5.5 Case Weight19 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-control-kit-p18469/|http://www.horticulturesource.com/images/GH1514.jpg|11.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1521|18472|pH Up 8oz Base|General Hydroponics pH Up 8oz Base (GH1521)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level. Manufacturer's Product Information MSRP each $7.54 UPC793094015226 Dimensions3.2 x 8.8 x 3.2 Case Weight9 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-up-8oz-base-p18472/|http://www.horticulturesource.com/images/GH1521.jpg|49.7600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1522|18473|pH Up Base Quart|General Hydroponics pH Up Base Quart (GH1522)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level. Manufacturer's Product Information MSRP each $10.76 UPC793094015233 Dimensions5.9 x 11.6 x 6.1 Case Weight31 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-up-base-quart-p18473/|http://www.horticulturesource.com/images/GH1522.jpg|71.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1523|18474|PH up Gallon|General Hydroponics PH up Gallon (GH1523)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level. Manufacturer's Product Information MSRP each $26.9 UPC793094015257 Dimensions3.4 x 4.6 x 4.1 Case Weight41 Case Quantity4|http://www.horticulturesource.com/general-hydroponics-ph-up-gallon-p18474/|http://www.horticulturesource.com/images/GH1523.jpg|59.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1525|18475|pH Up Dry 2.2lbs. Base|General Hydroponics pH Up Dry 2.2lbs. Base (GH1525)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level. Manufacturer's Product Information MSRP each $15 UPC793094015271 Dimensions9.6 x 7.7 x 9.2 Case Weight28 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-up-dry-2-2lbs-base-p18475/|http://www.horticulturesource.com/images/GH1525.jpg|10.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1527|18476|pH Up Dry 16lbs. Base|General Hydroponics pH Up Dry 16lbs. Base (GH1527)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level. Manufacturer's Product Information MSRP each $106 UPC793094015318 Dimensions1.9 x 6.2 x 1.9 Case Quantity1|http://www.horticulturesource.com/general-hydroponics-ph-up-dry-16lbs-base-p18476/|http://www.horticulturesource.com/images/GH1527.jpg|63.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1531|18477|pH Down Acid 8oz, case of 12|General Hydroponics pH Down Acid 8oz (GH1531)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level. Manufacturer's Product Information MSRP each $7.54 UPC793094015325 Dimensions3.3 x 8.7 x 3.2 Case Weight9 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-down-acid-8oz-case-of-12-p18477/|http://www.horticulturesource.com/images/GH1531.jpg|49.7600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1532|18478|pH Down Acid Quart, case of 12|General Hydroponics pH Down Acid Quart (GH1532)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level. Manufacturer's Product Information MSRP each $10.76 UPC793094015332 Dimensions5.9 x 11.7 x 5.9 Case Weight32 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-down-acid-quart-case-of-12-p18478/|http://www.horticulturesource.com/images/GH1532.jpg|71.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1533|18479|pH Down Acid Gallon, case of 4|General Hydroponics pH Down Acid Gallon (GH1533)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level. Manufacturer's Product Information MSRP each $26.9 UPC793094015358 Dimensions3.4 x 4.7 x 4.1 Case Weight43 Case Quantity4|http://www.horticulturesource.com/general-hydroponics-ph-down-acid-gallon-case-of-4-p18479/|http://www.horticulturesource.com/images/GH1533.jpg|59.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1535|18480|pH Down Dry 2.2lbs. Acid|General Hydroponics pH Down Dry 2.2lbs. Acid (GH1535)To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level. Manufacturer's Product Information MSRP each $10.76 UPC793094015370 Dimensions9.6 x 7.6 x 9.2 Case Weight27 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-down-dry-2-2lbs-acid-p18480/|http://www.horticulturesource.com/images/GH1535.jpg|7.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1541|18482|pH 4.01 Calibration Solution 8 oz|General Hydroponics pH 4.01 Calibration Solution 8 oz (GH1541)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $7.54 UPC793094015431 Dimensions3.3 x 8.6 x 3.3 Case Weight8 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-4-01-calibration-solution-8-oz-p18482/|http://www.horticulturesource.com/images/GH1541.jpg|4.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1542|18483|pH 4.01 Calibration Solution 1 qt|General Hydroponics pH 4.01 Calibration Solution 1 qt (GH1542)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $21.5 UPC793094015516 Dimensions1.8 x 6.1 x 1.8 Case Weight29 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-4-01-calibration-solution-1-qt-p18483/|http://www.horticulturesource.com/images/GH1542.jpg|13.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1551|18484|pH 7.0 Calibration Solution 8 oz|General Hydroponics pH 7.0 Calibration Solution 8 oz (GH1551)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $7.54 UPC793094015530 Dimensions4.2 x 8.5 x 3.7 Case Weight8 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-7-0-calibration-solution-8-oz-p18484/|http://www.horticulturesource.com/images/GH1551.jpg|4.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1552|18485|pH 7.0 Calibration Solution 1 qt|General Hydroponics pH 7.0 Calibration Solution 1 qt (GH1552)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $21.5 UPC793094015714 Dimensions1.9 x 6.1 x 1.2 Case Weight28 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-7-0-calibration-solution-1-qt-p18485/|http://www.horticulturesource.com/images/GH1552.jpg|13.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1571|18486|1500 ppm Calibration Solution 8 oz|General Hydroponics 1500 ppm Calibration Solution 8 oz (GH1571)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $8.2 UPC793094015738 Dimensions3.2 x 8.7 x 3.2 Case Weight8 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-1500-ppm-calibration-solution-8-oz-p18486/|http://www.horticulturesource.com/images/GH1571.jpg|5.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|General Hydroponics|hf-GH1572|18487|1500 ppm Calibration Solution 1 qt|General Hydroponics 1500 ppm Calibration Solution 1 qt (GH1572)General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. Manufacturer's Product Information MSRP each $21.5 UPC793094015820 Dimensions2.75 x 1.75 x 2.75 Case Weight29 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-1500-ppm-calibration-solution-1-qt-p18487/|http://www.horticulturesource.com/images/GH1572.jpg|13.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-HD125026|18833|27.7CF/EC2.77 250ml Cal Sol|Bluelab 27.7CF/EC2.77 250ml Cal Sol (HD125026)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.andnbsp; Manufacturer's Product Information MSRP each $7.81 Dimensions2.4 x 5.2 x 2.5 Case Weight7 Case Quantity6|http://www.horticulturesource.com/bluelab-27-7cf-ec2-77-250ml-cal-sol-p18833/|http://www.horticulturesource.com/images/HD125026.jpg|35.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HD4CAL250|18834|4.0 250 ML Calibration Solution|Bluelab 4.0 250 ML Calibration Solution (HD4CAL250)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed. Manufacturer's Product Information MSRP each $7.78 Dimensions2.7 x 7.1 x 2.7 Case Weight4 Case Quantity6|http://www.horticulturesource.com/hydrofarm-4-0-250-ml-calibration-solution-p18834/|http://www.horticulturesource.com/images/HD4CAL250.jpg|5.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HD4CAL500|18835|4.0 500 ML Calibration Solution|Bluelab 4.0 500 ML Calibration Solution (HD4CAL500)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed. Manufacturer's Product Information MSRP each $10.58 UPC029925626911 Dimensions15.5 x 11.25 x 7.25 Case Weight8 Case Quantity6|http://www.horticulturesource.com/hydrofarm-4-0-500-ml-calibration-solution-p18835/|http://www.horticulturesource.com/images/HD4CAL500.jpg|7.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-HD7CAL250|18837|7.0 250 ML Calibration Solution|Bluelab 7.0 250 ML Calibration Solution (HD7CAL250)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed. Manufacturer's Product Information MSRP each $7.78 Dimensions2.7 x 7.1 x 2.7 Case Weight4 Case Quantity6|http://www.horticulturesource.com/bluelab-7-0-250-ml-calibration-solution-p18837/|http://www.horticulturesource.com/images/HD7CAL250.jpg|5.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HD7CAL500|18838|7.0 500 ML Calibration Solution|Bluelab 7.0 500 ML Calibration Solution (HD7CAL500)Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed. Manufacturer's Product Information MSRP each $10.58 UPC659627009028 Dimensions7 x 13.9 x 9.4 Case Weight8 Case Quantity6|http://www.horticulturesource.com/hydrofarm-7-0-500-ml-calibration-solution-p18838/|http://www.horticulturesource.com/images/HD7CAL500.jpg|7.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HDNUTPRCLC|18890|Nutrient Probe Cleaning Kit|Bluelab Nutrient Probe Cleaning Kit (HDNUTPRCLC)Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller.If the probe is contaminated or dirty, it affects the accuracy of the reading displayed. The Bluelab Truncheon Meter and Bluelab Conductivity Probes read low when the probe is contaminated.The probe surface is where the instrument takes the reading of the solution. The information is sent back from the probe to the electronic brain of the instrument. A calculation is then done in the instruments brain or micro-computer and a reading is then displayed. If the information sent back from the probe is inaccurate due to probe surface contamination then the reading will be inaccurate.Cleaning the conductivity probe is a very easy task and prolongs the life of your probe.Kit Contentsandbull; Full color instructionsandbull; 500ml 2.77 EC Conductivity Standard Solutionandbull; Decanter vesselandbull; Bluelab Conductivity Probe Cleanerandbull; Bluelab Chamois (probe cleaning instrument)andnbsp; Manufacturer's Product Information MSRP each $26.95 UPC9421024920517 Dimensions7.1 x 7.5 x 2.8 Case Quantity1|http://www.horticulturesource.com/hydrofarm-nutrient-probe-cleaning-kit-p18890/|http://www.horticulturesource.com/images/HDNUTPRCLC.jpg|19.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HDPHCLCCAL|18891|pH Probe Cleaning and Calibration Kit|Bluelab pH Probe Cleaning and Calibration Kit (HDPHCLCCAL)Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller.If the probe is contaminated or dirty, it affects the accuracy of the reading displayed. pH probes are scientific instruments and should be cleaned and calibrated regularly to extend their life.The probe surface is where the instrument takes the reading of the solution. The information is sent back from the probe to the electronic brain of the instrument. A calculation is then done in the instrument's brain or micro-computer and a reading is then displayed. If the information sent back from the probe is inaccurate due to probe surface contamination then the reading will be inaccurate. Cleaning your pH probe is a very easy task which will prolong your probe's life.Kit Contentsandbull; Full color instructionsandbull; 500ml pH 4.0 and pH 7.0 Calibration solutionsandbull; Decanter vesselsandbull; Bluelab pH Probe Cleanerandbull; Toothbrush (probe cleaning instrument)andnbsp; Manufacturer's Product Information MSRP each $35.5 UPC659627006010 Dimensions6 x 11.5 x 5.9 Case Quantity1|http://www.horticulturesource.com/hydrofarm-ph-probe-cleaning-calibration-kit-p18891/|http://www.horticulturesource.com/images/HDPHCLCCAL.jpg|24.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI50021|19191|Cal Check Solution, case of 25|Hanna Instruments Cal Check Solution (HI50021)These sachets are for use with the Hanna HI9813-6 GroChek portable pH/TDS/EC/Temp meter, which utilizes the Cal Check Solution to determine whether the probe is in need of cleaning or replacement.The sachets should only be used once, then discarded, in order to avoid contamination and improper readings. Manufacturer's Product Information MSRP each $1.8 Dimensions2.75 x 0.25 x 5.75 Case Weight2 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-cal-check-solution-case-of-25-p19191/|http://www.horticulturesource.com/images/HI50021.jpg|30.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70004P|19192|pH 4.01 Calibration Sol. 25x20ml (case of 25)|Hanna Instruments pH 4.01 Calibration Sol. 25x20 (HI70004P)Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to NBS/NIST primary standard buffer solutions. The 20 mL sachets are ideal for infrequent calibrations while for heavy-duty applications, you can choose from the popular 230 mL, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot #, expiry date as well as pH/C chart on every bottle. HI 7004L/C and HI 8004L/C are also supplied with an analysis certificate. Manufacturer's Product Information MSRP each $1.28 Dimensions2.75 x 0.25 x 5.75 Case Weight2 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-ph-4-01-calibration-sol-25x20ml-case-of-25--p19192/|http://www.horticulturesource.com/images/HI70004P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70007P|19193|pH 7.01 Calibration Sol. 25x20ml (case of 25)|Hanna Instruments pH 7.01 Calibration Sol. 25x20 (HI70007P)pH 7 is the most frequently used pH buffer. All Hanna solution bottles come with a pH vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy.Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie and 186IIe and NIST 158g S.R.M.). Manufacturer's Product Information MSRP each $1.28 Dimensions6 x 0.1 x 3 Case Weight1 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-ph-7-01-calibration-sol-25x20ml-case-of-25--p19193/|http://www.horticulturesource.com/images/HI70007P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70030P|19194|12880 S/cm Calibration Solution, 25 x 20mL, case of 25|Hanna Instruments 12880mS/cm Calib Sol 20ml (HI70030P)Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments, comes in a package designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $1.28 Dimensions2.75 x 0.25 x 5.75 Case Weight1 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-12880-s-cm-calibration-solution-25-x-20ml-case-of-25-p19194/|http://www.horticulturesource.com/images/HI70030P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70031P|19195|1413mS/cm Calibration Sol. 25x20ml (case of 25)|Hanna Instruments 1413mS/cm Calibration Sol. 25x (HI70031P)Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments, comes in a bottle designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $1.28 Dimensions2.75 x 0.25 x 5.76 Case Weight1 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-1413ms-cm-calibration-sol-25x20ml-case-of-25--p19195/|http://www.horticulturesource.com/images/HI70031P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70032P|19196|1382PPM@25c Calibration Solution|Hanna Instruments 1382PPM@25c Calibration Soluti (HI70032P)Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments, comes in a bottle designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $1.28 Dimensions2.6 x 7.7 x 2.6 Case Weight2 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-1382ppm-25c-calibration-solution-p19196/|http://www.horticulturesource.com/images/HI70032P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7004L|19197|PH4 Calibration Solution, 16 oz|Hanna Instruments PH4 Calibration Solution, 16 oz (HI7004L)Hanna's buffer solutions are made from established formulas and are standardized with a pH meter calibrated to NBS/NIST primary standard buffer solutions. The 20 mL sachets are ideal for infrequent calibrations while for heavy-duty applications, you can choose from the popular 230 mL, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot # andandnbsp;expiry date as well as pH/C chart on every bottle. HI 7004L/C and HI 8004L/C are also supplied with an analysis certificate.Hanna pH 4 buffers contain potassium hydrogen phthalate. They are standardized using a pH meter calibrated by primary standard buffer solutions (NIST 186 Ie, NIST 186 IIe and NIST 185g S.R.M.). The pH value is certified traceable to NIST 185g S.R.M. Manufacturer's Product Information MSRP each $18.95 Dimensions2.6 x 7.8 x 2.5 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-ph4-calibration-solution-16-oz-p19197/|http://www.horticulturesource.com/images/HI7004L.jpg|14.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7007L|19198|PH7 Calibration Solution, 16 oz|Hanna Instruments PH7 Calibration Solution, 16 oz (HI7007L)All Hanna solution bottles come with a pH Vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy.Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie and 186IIe and NIST 158g S.R.M.). Manufacturer's Product Information MSRP each $18.95 Dimensions2 x 6 x 2 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-ph7-calibration-solution-16-oz-p19198/|http://www.horticulturesource.com/images/HI7007L.jpg|14.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7021M|19199|ORP Test Solution 240 mV @20 degrees C (Special Order)|Hanna Instruments ORP Test Solution 240 mV @20anddeg;C (HI7021M)ORP standard solutions allow you to test the precision of ORP electrodes. For example, by immersing the electrode in HI 7020 solution, you should read within the 200 to 275 mV range (@20anddeg;C/68anddeg;F).andnbsp;andnbsp; Manufacturer's Product Information MSRP each $25.97 Dimensions2.7 x 7.6 x 2.7|http://www.horticulturesource.com/hanna-instruments-orp-test-solution-240-mv-20-c-special-order--p19199/|http://www.horticulturesource.com/images/HI7021M.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70300L|19200|Storage Solution, 16 oz|Hanna Instruments Storage Solution, 16 oz (HI70300L)Hanna storage solutions are prepared with high-grade potassium chloride and potassium hydrogen phthalate by titration with NIST 2201 standardized silver nNitrate and NIST 84j standardized sodium hydroxide sSolution, respectively. To minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist. Manufacturer's Product Information MSRP each $18.95 Dimensions9.2 x 6.5 x 9.2 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-storage-solution-16-oz-p19200/|http://www.horticulturesource.com/images/HI70300L.jpg|14.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7030M|19201|12880 S/ cm conductivity solution|Hanna Instruments 12880 S/ cm conductivity solution (HI7030M)This Hanna conductivity calibration solution is widely used to assure the proper performance of conductivity meters with a scale higher than 10 mS.cm. This solution is used mainly for industrial applications and is available in various sizes to better meet your specific application requirements. Manufacturer's Product Information MSRP each $12.95 Dimensions2.1 x 5.6 x 1.3 Case Quantity16|http://www.horticulturesource.com/hanna-instruments-12880-s-cm-conductivity-solution-p19201/|http://www.horticulturesource.com/images/HI7030M.jpg|11.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7031M|19202|1413mS/cm Sol. 230mL|Hanna Instruments 1413mS/cm Sol. 230mL (HI7031M)All Hanna solution bottles come with a pH Vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy.Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie and 186IIe and NIST 158g S.R.M.). Manufacturer's Product Information MSRP each $14.95 Dimensions2.6 x 7.5 x 2.5 Case Weight10 Case Quantity16|http://www.horticulturesource.com/hanna-instruments-1413ms-cm-sol-230ml-p19202/|http://www.horticulturesource.com/images/HI7031M.jpg|12.3300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7032L|19203|1382ppm TDS Sol, 460ml|Hanna Instruments 1382ppm TDS Sol, 460ml (HI7032L)Hanna Instruments' testing solution, ideal for gardening, laboratory work, and field experiments,andnbsp;comes in a bottle designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $18.95 Dimensions2 x 5.1 x 2 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-1382ppm-tds-sol-460ml-p19203/|http://www.horticulturesource.com/images/HI7032L.jpg|13.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7032M|19204|1382ppm Solution, 230ml|Hanna Instruments 1382ppm Solution, 230ml (HI7032M)The conductivity solutions are made of high quality potassium chloride with different strengths. The solutions are standardized with a conductivity meter, calibrated by high purity NIST 999 potassium chloride in deionized water. The concentration is also confirmed by NIST 2201 standardized silver nitrate solution. Manufacturer's Product Information MSRP each $14.95 Dimensions2.5 x 7.6 x 2.5 Case Quantity16|http://www.horticulturesource.com/hanna-instruments-1382ppm-solution-230ml-p19204/|http://www.horticulturesource.com/images/HI7032M.jpg|11.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70442L|19205|1500PPM TDS Sol 16oz|Hanna Instruments 1500PPM TDS Sol 16oz (HI70442L)Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments, comes in packaging designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $15.95 Dimensions2 x 6 x 1.4 Case Weight7 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-1500ppm-tds-sol-16oz-p19205/|http://www.horticulturesource.com/images/HI70442L.jpg|13.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70442M|19206|1500PPM Solution, 230ml|Hanna Instruments 1500PPM Solution, 230ml (HI70442M)Hanna Instruments' solution, ideal for gardening, laboratory work, and field experiments, comes in a bottle designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $13.95 Dimensions2.75 x 0.25 x 5.75 Case Weight10 Case Quantity16|http://www.horticulturesource.com/hanna-instruments-1500ppm-solution-230ml-p19206/|http://www.horticulturesource.com/images/HI70442M.jpg|12.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI70442P|19207|Calibration Solution 1500PPM|Hanna Instruments Calibration Solution 1500PPM (HI70442P)Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments, comes in a package designed to keep air and light from damaging the solution. Manufacturer's Product Information MSRP each $1.28 Dimensions2.6 x 7.6 x 2.5 Case Weight2 Case Quantity25|http://www.horticulturesource.com/hanna-instruments-calibration-solution-1500ppm-p19207/|http://www.horticulturesource.com/images/HI70442P.jpg|24.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7061L|19208|Electrode Cleaner 16 oz|Hanna Instruments Electrode Cleaner 16 oz (HI7061L)Clean the liquid junction of your electrodes at least once a week to prevent clogging and to maintain accuracy. Immerse the electrode in the proper cleaning solution for about 5 minutes.Hanna Instrumentsandnbsp;offers a wide range of cleaning solutions, for general purpose and specific applications, to eliminate all kinds of dirt and deposits from the electrode, and thus ensure correct measurements. Manufacturer's Product Information MSRP each $19.95 Case Weight15 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-electrode-cleaner-16-oz-p19208/|http://www.horticulturesource.com/images/HI7061L.jpg|14.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7071|19209|Electrolyte Solution|Hanna Instruments Electrolyte Solution (HI7071)Check your refillable electrolyte level before performing any measurements. If the level is low, refill with the proper electrolyte solution to ensure the correct electrode performance. This simple maintenance helps guarantee the efficiency and precision of your refillable electrodes.These electrolyte solutions are also available in FDA-compliant bottles.andnbsp; Manufacturer's Product Information MSRP each $60.95 Dimensions1.4 x 6 x 1.4 Case Quantity4|http://www.horticulturesource.com/hanna-instruments-electrolyte-solution-p19209/|http://www.horticulturesource.com/images/HI7071.jpg|52.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HI7081M|19210|Salinity (NaCI) Calibration solution 30g-l.|Hanna Instruments Salinity (NaCI) Calibration solution 30g-l. (HI7081M)Salinity (NaCI) Calibration solution 30g-l. Manufacturer's Product Information MSRP each $34.95 Dimensions2.7 x 1.1 x 5.7 Case Weight12 Case Quantity12|http://www.horticulturesource.com/hanna-instruments-salinity-naci-calibration-solution-30g-l--p19210/|http://www.horticulturesource.com/images/HI7081M.jpg|15.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HIPHKIT|19245|Solution Starter Kit (pH and Cleaning)|Hanna Instruments Solution Starter Kit (pH and Cleaning) (HIPHKIT)Single-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.This convenient starter kit includes the cleaning and calibration solutions that will give you the most out of your meter, saving you money on replacement probes.This kit includes:andbull; (5) pH 4.01 buffer solution sachets andbull; (5) pH 7.01 buffer solution sachets andbull; (5) Agricultural cleaning solution sachetsandnbsp; Manufacturer's Product Information MSRP each $20.95 Dimensions3 x 3.5 x 6|http://www.horticulturesource.com/hanna-instruments-solution-starter-kit-ph-cleaning--p19245/|http://www.horticulturesource.com/images/HIPHKIT.jpg|15.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Hanna Instruments|hf-HIPHTDSKIT|19246|Solution Starter Kit (pH, TDS and Cleaning)|Hanna Instruments Solution Starter Kit (pH, TDS and Cleaning) (HIPHTDSKIT)Single-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.This convenient starter kit includes the cleaning and calibration solutions that will give you the most out of your meter, saving you money on replacement probes.This kit includes:andbull; (5) pH 7.01 buffer solution sachets andbull; (5) 1500 ppm TDS solution sachets andbull; (5) Agricultural cleaning solution sachetsandnbsp; Manufacturer's Product Information MSRP each $20.95 Dimensions2.5 x 10.25 x 2|http://www.horticulturesource.com/hanna-instruments-solution-starter-kit-ph-tds-cleaning--p19246/|http://www.horticulturesource.com/images/HIPHTDSKIT.jpg|15.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|hf-HMDC1000|19350|1000ppm Calibration Solution|HM Digital Meters 1000ppm Calibration Solution (HMDC1000)NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner. Manufacturer's Product Information MSRP each $6.5 UPC891144000007 Dimensions2.1 x 2.9 x 8.9 Case Weight9 Case Quantity36|http://www.horticulturesource.com/hm-digital-1000ppm-calibration-solution-p19350/|http://www.horticulturesource.com/images/HMDC1000.jpg|5.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|hf-HMOPSTOR|19358|HM Digital PH-STOR pH Electrode Storage Solution|HM Digital Meters pH Storage Solution (HMOPSTOR)For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR storage solution. The sponge should be moist (not soaking wet). Manufacturer's Product Information MSRP each $6.95 UPC837654466056 Dimensions1.75 x 4.6 x 4.5 Case Weight2 Case Quantity10|http://www.horticulturesource.com/hm-digital-hm-digital-ph-stor-ph-electrode-storage-solution-p19358/|http://www.horticulturesource.com/images/HMOPSTOR-n.jpg|4.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH81101|19623|Double Up Qt|Hydro Organics / Earth Juice Double Up Qt (HOH81101)Hydroponics and soil liquid pH adjuster Manufacturer's Product Information MSRP each $11.56 UPC727644443122 Dimensions6.1 x 11.7 x 6 Case Weight29 Case Quantity12|http://www.horticulturesource.com/earth-juice-double-up-qt-p19623/|http://www.horticulturesource.com/images/HOH81101.jpg|9.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH81201|19624|Double Up Gallon|Hydro Organics / Earth Juice Double Up Gallon (HOH81201)The best choice for a liquid pH adjuster Manufacturer's Product Information MSRP each $25.87 UPC727644144210 Dimensions2.9 x 7 x 3 Case Weight39 Case Quantity4|http://www.horticulturesource.com/earth-juice-double-up-gallon-p19624/|http://www.horticulturesource.com/images/HOH81201.jpg|18.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH81511|19625|Earth Juice Natural Up, 1lb.|Hydro Organics / Earth Juice Earth Juice Natural Up, 1lb. (HOH81511)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer andandnbsp;plant micronutrient foliar solutions.andnbsp;Proper pH is vital for healthy plant life. Manufacturer's Product Information MSRP each $10.24 UPC727644144227 Dimensions3.2 x 9.1 x 3.2 Case Weight14 Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-up-1lb--p19625/|http://www.horticulturesource.com/images/HOH81511.jpg|8.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH81512|19626|Earth Juice Natural Up, 2lbs.|Hydro Organics / Earth Juice Earth Juice Natural Up, 2lbs. (HOH81512)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer andandnbsp;plant micronutrient foliar solutions.andnbsp;Proper pH is vital for healthy plant life. Manufacturer's Product Information MSRP each $18.41 UPC727644840211 Dimensions2.25 x 2.25 x 6.75 Case Weight27 Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-up-2lbs--p19626/|http://www.horticulturesource.com/images/HOH81512.jpg|13.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84021|19627|Earth Juice Natural Down, .8 lb|Hydro Organics / Earth Juice Earth Juice Natural Down, .8 lb (HOH84021)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer and plant micronutrient foliar solutions. Manufacturer's Product Information MSRP each $9.1 UPC727644840228 Dimensions10.25 x 9 x 3.75 Case Weight12 Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-down-8-lb-p19627/|http://www.horticulturesource.com/images/HOH84021.jpg|7.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84022|19628|Earth Juice Natural Down, 1.6 lbs.|Hydro Organics / Earth Juice Earth Juice Natural Down, 1.6 lbs. (HOH84022)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer and plant micronutrient foliar solutions. Manufacturer's Product Information MSRP each $16.38 UPC727644840235 Dimensions5 x 12 x 5 Case Weight10 Case Quantity12|http://www.horticulturesource.com/earth-juice-earth-juice-natural-down-1-6-lbs--p19628/|http://www.horticulturesource.com/images/HOH84022.jpg|13.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84023|19629|EJ Nat Down 7.8lb (4/cs)|Hydro Organics / Earth Juice EJ Nat Down 7.8lb (4/cs) (HOH84023)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer and plant micronutrient foliar solutions. Manufacturer's Product Information MSRP each $58.42 UPC727644840242 Dimensions12 x 11.25 x 12 Case Weight32 Case Quantity4|http://www.horticulturesource.com/earth-juice-ej-nat-down-7-8lb-4-cs--p19629/|http://www.horticulturesource.com/images/HOH84023.jpg|42.5800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84024|19630|Earth Juice Natural Down, 25 lb|Hydro Organics / Earth Juice Earth Juice Natural Down, 25 lb (HOH84024)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer and plant micronutrient foliar solutions. Manufacturer's Product Information MSRP each $168.5 UPC727644840334 Dimensions5.75 x 12.25 x 5.75 Case Quantity1|http://www.horticulturesource.com/earth-juice-earth-juice-natural-down-25-lb-p19630/|http://www.horticulturesource.com/images/HOH84024.jpg|111.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84033|19631|Earth Juice Natural Up, 10 lb|Hydro Organics / Earth Juice Earth Juice Natural Up, 10 lb (HOH84033)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer andandnbsp;plant micronutrient foliar solutions.andnbsp;Proper pH is vital for healthy plant life. Manufacturer's Product Information MSRP each $70.1 UPC727644840341 Dimensions12 x 11.25 x 12 Case Weight42 Case Quantity4|http://www.horticulturesource.com/earth-juice-earth-juice-natural-up-10-lb-p19631/|http://www.horticulturesource.com/images/HOH84033.jpg|51.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH84034|19632|Earth Juice Natural Up, 30 lb|Hydro Organics / Earth Juice Earth Juice Natural Up, 30 lb (HOH84034)pH adjusting crystals that will, once and for all, eliminate the hassles and worries of spilling, splashing and dealing with harsh liquid pH adjusters. Use to adjust the pH of fertilizer andandnbsp;plant micronutrient foliar solutions.andnbsp;Proper pH is vital for healthy plant life. Manufacturer's Product Information MSRP each $202.19 UPC727644441517 Dimensions3.2 x 8.7 x 3.2 Case Quantity1|http://www.horticulturesource.com/earth-juice-earth-juice-natural-up-30-lb-p19632/|http://www.horticulturesource.com/images/HOH84034.jpg|133.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-HOH85101|19633|Double Down Qt|Hydro Organics Double Down Qt (HOH85101)Liquid pH adjuster with proprietary formulation that offers superior pH control. Manufacturer's Product Information MSRP each $11.56 UPC727644441524 Dimensions6.1 x 11.7 x 6 Case Weight29 Case Quantity12|http://www.horticulturesource.com/hydrofarm-double-down-qt-p19633/|http://www.horticulturesource.com/images/HOH85101.jpg|9.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Earth Juice|hf-HOH85201|19634|Double Down Gallon|Hydro Organics / Earth Juice Double Down Gallon (HOH85201)The best choice for a liquid pH adjuster Manufacturer's Product Information MSRP each $25.87 UPC727644082031 Dimensions5.9 x 11.7 x 5.9 Case Weight39 Case Quantity4|http://www.horticulturesource.com/earth-juice-double-down-gallon-p19634/|http://www.horticulturesource.com/images/HOH85201.jpg|18.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MI10004P|20013|PH4 Solution 20ml|Milwaukee Instruments PH4 Solution 20ml (MI10004P)This item is sachetsAvailable in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $1 Dimensions5.75 x 0.25 x 5.75 Case Weight2 Case Quantity25|http://www.horticulturesource.com/milwaukee-instruments-ph4-solution-20ml-p20013/|http://www.horticulturesource.com/images/MI10004P.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MI10007P|20014|PH7 Solution 20ml, case of 25|Milwaukee Instruments PH7 Solution 20ml (MI10007P)This item is sachetsAvailable in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $1 Dimensions2.75 x 0.25 x 5.75 Case Weight1 Case Quantity25|http://www.horticulturesource.com/milwaukee-instruments-ph7-solution-20ml-case-of-25-p20014/|http://www.horticulturesource.com/images/MI10007P.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MI10031P|20015|EC Solution 1413|Milwaukee Instruments EC Solution 1413 (MI10031P)Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $1 Dimensions2.75 x 0.25 x 5.75 Case Weight3 Case Quantity25|http://www.horticulturesource.com/milwaukee-instruments-ec-solution-1413--p20015/|http://www.horticulturesource.com/images/MI10031P.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MI10032P|20016|TDS Solution 1382|Milwaukee Instruments TDS Solution 1382 (MI10032P)Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $1 Dimensions2.75 x 0.25 x 5.75 Case Weight2 Case Quantity25|http://www.horticulturesource.com/milwaukee-instruments-tds-solution-1382-p20016/|http://www.horticulturesource.com/images/MI10032P.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MI10442P|20017|1500PPM Packet|Milwaukee Instruments 1500PPM Packet (MI10442P)This item is sachetsAvailable in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $1 UPC810666000852 Dimensions4.5 x 11 x 12.25 Case Weight2 Case Quantity25|http://www.horticulturesource.com/milwaukee-instruments-1500ppm-packet-p20017/|http://www.horticulturesource.com/images/MI10442P.jpg|17.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MIMA9004|20024|PH4 Solution, 220ml|Milwaukee Instruments PH4 Solution, 220ml (MIMA9004)Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $10.95 UPC810666009619 Dimensions2.1 x 5.6 x 2.1 Case Weight9 Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-ph4-solution-220ml-p20024/|http://www.horticulturesource.com/images/MIMA9004.jpg|7.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MIMA9007|20025|PH7 Solution, 220ml|Milwaukee Instruments PH7 Solution, 220ml (MIMA9007)Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $10.95 UPC810666009688 Dimensions2.1 x 5.6 x 2.1 Case Weight10 Case Quantity16|http://www.horticulturesource.com/milwaukee-instruments-ph7-solution-220ml-p20025/|http://www.horticulturesource.com/images/MIMA9007.jpg|7.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Milwaukee Instruments|hf-MIMA9062|20026|1382 PPM Solution 220ml|Milwaukee Instruments 1382 PPM Solution 220ml (MIMA9062)Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces. Manufacturer's Product Information MSRP each $10.95 UPC810666004102 Dimensions4.8 x 10.3 x 4.8 Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-1382-ppm-solution-220ml-p20026/|http://www.horticulturesource.com/images/MIMA9062.jpg|7.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|hf-OK0065318|20205|1413 US Solution 500 ml|Oakton 1413 US Solution 500 ml (OK0065318)Standards have KCl, NaCl and 442 conversions printed on the bottle for ease of use. Temperature corrections are printed on the bottle, with the certified values listed in the tables, accurate to within andplusmn;0.5% and are referenced to 25anddeg;C. Manufacturer's Product Information MSRP each $19.95 Dimensions3 x 6.1 x 3 Case Quantity50|http://www.horticulturesource.com/oakton-1413-us-solution-500-ml-p20205/|http://www.horticulturesource.com/images/OK0065318.jpg|13.7800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|hf-OK0065400|20206|Buffer 4.01 pH 500 ml|Oakton Buffer 4.01 pH 500 ml (OK0065400)Oakton buffers for meters with 0.01 resolution are standardized against NIST-certified pH references within 0.01 pH at 77anddeg;F (25anddeg;C). Store buffers away from direct sunlight. Manufacturer's Product Information MSRP each $21.5 Dimensions3 x 6.1 x 3 Case Quantity1|http://www.horticulturesource.com/oakton-buffer-4-01-ph-500-ml-p20206/|http://www.horticulturesource.com/images/OK0065400.jpg|13.7800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|hf-OK0065404|20207|Buffer 7.00 pH 500 ml|Oakton Buffer 7.00 pH 500 ml (OK0065404)Oakton buffers for meters with 0.01 resolution are standardized against NIST-certified pH references within 0.01 pH at 77anddeg;F (25anddeg;C). Store buffers away from direct sunlight. Manufacturer's Product Information MSRP each $21.5 Dimensions1.5 x 1.5 x 6.5 Case Quantity1|http://www.horticulturesource.com/oakton-buffer-7-00-ph-500-ml-p20207/|http://www.horticulturesource.com/images/OK0065404.jpg|13.7800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|hf-OK3565301|20220|pH 4.01 Sol|Oakton pH 4.01 Sol (OK3565301)20 pouches per box Manufacturer's Product Information MSRP each $2.3 Dimensions4 x 0.01 x 4 Case Weight1 Case Quantity20|http://www.horticulturesource.com/oakton-ph-4-01-sol-p20220/|http://www.horticulturesource.com/images/OK3565301.jpg|32.3300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Oakton|hf-OK3565313|20221|Calibration Solution 15,000 uS (Case of 20) (Special Order)|Oakton Calibration Solution 15,000 uS (OK3565313)Oakton Calibration Solution 15,000 uS Manufacturer's Product Information MSRP each $2.3 Dimensions6 x 1.4 x 7 Case Quantity20|http://www.horticulturesource.com/oakton-calibration-solution-15-000-us-case-of-20-special-order--p20221/|http://www.horticulturesource.com/images/OK3565313.jpg|34.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-PNCASL|20331|Cal Sol 1380 parts per million, 2 oz|Cal Sol 1380 parts per million, 2 oz (PNCASL)andnbsp; Manufacturer's Product Information MSRP each $5.98 UPC638104008648 Dimensions17.5 x 3.5 x 32 Case Weight2 Case Quantity12|http://www.horticulturesource.com/hydrofarm-cal-sol-1380-parts-per-million-2-oz-p20331/|http://www.horticulturesource.com/images/PNCASL.jpg|3.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HydroFarm|hf-PROPHDQT|20338|Pro pH Down Quart|Hydrofarm Pro pH Down Quart (PROPHDQT)Don't pollute your reservoir with home remedies! Our pH adjustment solutions are made from nutrients plants can use. We forumulated this product to be super-concentrated for quick, easy adjustments. Manufacturer's Product Information MSRP each $9.5 UPC698319012104 Dimensions6.25 x 10.5 x 4.75 Case Weight32 Case Quantity12|http://www.horticulturesource.com/hydrofarm-pro-ph-down-quart-p20338/|http://www.horticulturesource.com/images/PROPHDQT.jpg|33.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHD10L|21019|pH Down, 10 lt|Technaflora pH Down, 10 lt (TFPHD10L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $51.5 UPC625664721346 Dimensions3.2 x 9.2 x 3.1 Case Weight51 Case Quantity2|http://www.horticulturesource.com/technaflora-ph-down-10-lt-p21019/|http://www.horticulturesource.com/images/TFPHD10L.jpg|34.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHD1L|21020|pH Down, 1 lt|Technaflora pH Down, 1 lt (TFPHD1L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $13.42 UPC625664723449 Dimensions6.3 x 11.3 x 5.9 Case Weight30 Case Quantity12|http://www.horticulturesource.com/technaflora-ph-down-1-lt-p21020/|http://www.horticulturesource.com/images/TFPHD1L.jpg|7.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHD4L|21021|pH Down, 4 lt|Technaflora pH Down, 4 lt (TFPHD4L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $26.86 UPC625664728758 Dimensions9.8 x 14.3 x 6.8 Case Weight40 Case Quantity4|http://www.horticulturesource.com/technaflora-ph-down-4-lt-p21021/|http://www.horticulturesource.com/images/TFPHD4L.jpg|17.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHU10L|21022|pH UP, 10 lt|Technaflora pH UP, 10 lt (TFPHU10L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $51.5 UPC625664721353 Dimensions3.2 x 9.1 x 3.2 Case Weight53 Case Quantity2|http://www.horticulturesource.com/technaflora-ph-up-10-lt-p21022/|http://www.horticulturesource.com/images/TFPHU10L.jpg|34.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHU1L|21023|pH UP, 1 lt|Technaflora pH UP, 1 lt (TFPHU1L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $13.42 UPC625664723456 Dimensions6.1 x 11.4 x 6 Case Weight31 Case Quantity12|http://www.horticulturesource.com/technaflora-ph-up-1-lt-p21023/|http://www.horticulturesource.com/images/TFPHU1L.jpg|7.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Technaflora|hf-TFPHU4L|21024|pH UP, 4 lt|Technaflora pH UP, 4 lt (TFPHU4L)Technaflora's pH Up and pH Down enable the gardener to moderate and maintain optimum pH levels. The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium. Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH. At the same time as ensuring stringent industry safety standards, Technaflora's pH Up and pH Down are potent and effective, only requiring a small dose with each application. Manufacturer's Product Information MSRP each $26.86 UPC625664100721 Dimensions3 x 11.8 x 8 Case Weight41 Case Quantity4|http://www.horticulturesource.com/technaflora-ph-up-4-lt-p21024/|http://www.horticulturesource.com/images/TFPHU4L.jpg|17.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU7002|21239|Bluelab Probe Care Kit Conductivity|The instrument is only as accurate as the probe is clean.Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller.The probe surface is where the instrument takes the reading of the solution. If the probe face is dirty or contaminated, then the reading will be inaccurate.Accurate readings simplify crop management and provide improved growth.To re-stock your conductivity probe care kit, Bluelab 2.77 EC Conductivity Standard Solution is available in 20ml sachets, 250ml and 500ml bottles.|http://www.horticulturesource.com/bluelab-bluelab-probe-care-kit-conductivity-p21239/|http://www.horticulturesource.com/images/BLU7002.jpg|7.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU7001|21240|Bluelab Probe Care Kit pH and Conductivity|The instrument is only as accurate as the probe is clean.Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller.The probe surface is where the instrument takes the reading of the solution or soil/media. If the probe face is dirty or contaminated, then the reading will be inaccurate.Accurate readings simplify crop management and provide improved growth.To re-stock your pH and conductivity probe care kit, Bluelab pH 7.0, pH 4.0 and 2.77 EC Solutions are available in 20ml sachets, 250ml and 500ml bottles. Bluelab pH Probe KCl Storage Solution is available in 100ml bottles only.|http://www.horticulturesource.com/bluelab-bluelab-probe-care-kit-ph-conductivity-p21240/|http://www.horticulturesource.com/images/BLU7001.jpg|15.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|716448|21275|Bluelab Probe Care pH and Conductivity|Bluelab Probe Care Kit pH and ConductivityEverything you need to clean, hydrate and calibrate pH probes as well as clean and test conductivity (ppm/EC) probes. The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth. Includes instructions, 20ml single-use Bluelab Solution Sachets, 2 each of: pH 7.0 and pH 4.0, KCl, 2.77 EC, 3x plastic cups, pH Probe Cleaner, Conductivity Probe Cleaner, Toothbrush and Chamois.|http://www.horticulturesource.com/bluelab-bluelab-probe-care-ph-conductivity-p21275/|http://www.horticulturesource.com/images/716448.png|15.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|716053|21637|Bluelab Probe Care Kit - pH|Bluelab Probe Care Kit pHEverything you need to clean, hydrate and calibrate pH probes. Probe cleaning and correctly storing pH probes ensures you get the most accurate readings possible and will maximize the life of a probe. The probe surface is where the instrument takes the reading of the solution or soil/media. If the probe face is dirty or contaminated, the readings may be inaccurate. pH probes specifically, should be kept wet at all times for optimal performance and life.|http://www.horticulturesource.com/bluelab-bluelab-probe-care-kit-ph-p21637/|http://www.horticulturesource.com/images/716053.jpg|10.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU7003|21726|Probe Care Kit-pH|The instrument is only as accurate as the probe is clean.Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller.The probe surface is where the instrument takes the reading of the solution or soil/media. If the probe face is dirty or contaminated, then the reading will be inaccurate.Accurate readings simplify crop management and provide improved growth.Kit Contents:* Probe care instructions* 20ml single-use Bluelab Solution Sachets, 2 each of: pH 7.0 andamp; pH 4.0 and KCl.* 3x plastic cups* Bluelab pH Probe Cleaner* Bluelab Toothbrush (pH probe cleaning instrument)|http://www.horticulturesource.com/bluelab-probe-care-kit-ph-p21726/|http://www.horticulturesource.com/images/hf-BLU7003.jpg|11.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21402|21795|Microbe Life, pH Decrease 16 oz|When used as directed, Microbe Life H Decrease:* Safely lowers pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-decrease-16-oz-p21795/|http://www.horticulturesource.com/images/hf-ML21402.jpg|10.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21403|21796|Microbe Life, pH Decrease 32oz|When used as directed, Microbe Life H Decrease:* Safely lowers pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-decrease-32oz-p21796/|http://www.horticulturesource.com/images/hf-ML21402.jpg|16.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21404|21797|Microbe Life, pH Decrease 1 gal|When used as directed, Microbe Life H Decrease:* Safely lowers pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-decrease-1-gal-p21797/|http://www.horticulturesource.com/images/hf-ML21402.jpg|33.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21398|21798|Microbe Life, pH Increase 16 oz|When used as directed, Microbe Life H Increase:* Safely raises pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-increase-16-oz-p21798/|http://www.horticulturesource.com/images/hf-ML21398.jpg|10.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21399|21799|Microbe Life, pH Increase 32oz|When used as directed, Microbe Life H Increase:* Safely raises pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-increase-32oz-p21799/|http://www.horticulturesource.com/images/hf-ML21398.jpg|16.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21400|21800|Microbe Life, pH Increase 1 gal|When used as directed, Microbe Life H Increase:* Safely raises pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-increase-1-gal-p21800/|http://www.horticulturesource.com/images/hf-ML21398.jpg|33.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|MICROBE Life Hydroponics|hf-ML21401|21801|Microbe Life, pH Increase 2.5 gal|When used as directed, Microbe Life H Increase:* Safely raises pH levels* Combines 2 pH adjusters for buffered effectiveness* Contains 3 electrolytes to help maintain osmotic balance* Will not harm plants|http://www.horticulturesource.com/microbe-life-hydroponics-microbe-life-ph-increase-2-5-gal-p21801/|http://www.horticulturesource.com/images/hf-ML21398.jpg|59.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Dyna-Gro|dl-DGPHU-032|21890|Dyna-Gro PH Up|pH-Up and pH-Down are supplements used to adjust your water and nutrient solutions to the proper pH range for plants. Most plants prefer a pH range of 6.2 to 6.8. pH levels that are too low or too high can result in release of or tying up of minerals in soils that can lead to toxic levels or deficient levels of various elements.|http://www.horticulturesource.com/dyna-gro-dyna-gro-ph-up-p21890/|http://www.horticulturesource.com/images/DGPHU-032.jpg|9.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Dyna-Gro|dl-DGPHD-032|21891|Dyna-Gro PH Down|pH-Up and pH-Down are supplements used to adjust your water and nutrient solutions to the proper pH range for plants. Most plants prefer a pH range of 6.2 to 6.8. pH levels that are too low or too high can result in release of or tying up of minerals in soils that can lead to toxic levels or deficient levels of various elements.|http://www.horticulturesource.com/dyna-gro-dyna-gro-ph-down-p21891/|http://www.horticulturesource.com/images/DGPHD-032.jpg|9.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Vermicorp Organics|hf-VC995600|22335|Gold Label Nutrients Ultra PH-, 250 ml|Gold Label Ultra pH- is a high strength universal acid for adjusting the pH of nutrient solutions. It contains a balanced mix of phosphoric acid, nitric acid and sulfuric acid.Add last to nutrient solutions in small steps in the vegetative and flowering period.Use in combination with Gold Label Base Nutrients.|http://www.horticulturesource.com/vermicorp-organics-gold-label-nutrients-ultra-ph-250-ml-p22335/|http://www.horticulturesource.com/images/VC995600.jpg|5.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-RXPHLOWER32|22571|Rx Green Solutions Lower pH Adjuster, 32-Ounce|LOWER is a pH adjuster that effectively decreases high pH levels to the desired levels. Levels outside the recommended pH range can cause nutrient deficiencies and result in slowed growth. Most plants require a pH of 5.5-6.5.Scientifically developed for professional growers worldwideEffectively increases low levels of pH to desired levelsPromotes nutrient intake and faster growth ratesActive ingredient: potassium hydroxideApply directly to pre-mixed nutrient solution|http://www.horticulturesource.com/rx-green-solutions-lower-ph-adjuster-32-ounce-p22571/|http://www.horticulturesource.com/images/RXPHLOWER32.jpg|6.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-RXPHLOWER128|22572|Rx Green Solutions Lower pH Adjuster, 128-Ounce|LOWER is a pH adjuster that effectively decreases high pH levels to the desired levels. Levels outside the recommended pH range can cause nutrient deficiencies and result in slowed growth. Most plants require a pH of 5.5-6.5.Scientifically developed for professional growers worldwideEffectively increases low levels of pH to desired levelsPromotes nutrient intake and faster growth ratesActive ingredient: potassium hydroxideApply directly to pre-mixed nutrient solution|http://www.horticulturesource.com/rx-green-solutions-lower-ph-adjuster-128-ounce-p22572/|http://www.horticulturesource.com/images/RXPHLOWER128.jpg|15.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-RXPHRAISE32|22573|Rx Green Solutions Raise pH Adjuster, 32-Ounce|RAISE is a pH adjuster that effectively increases low pH levels to the desired level using potassium hydroxide. Levels outside the recommended pH range can cause nutrient deficiencies and result in slowed growth. Most plants require a pH of 5.5-6.5.Scientifically developed for professional growers worldwideEffectively increases low levels of pH to desired levelsPromotes nutrient intake and faster growth ratesActive ingredient: potassium hydroxideApply directly to pre-mixed nutrient solution|http://www.horticulturesource.com/rx-green-solutions-raise-ph-adjuster-32-ounce-p22573/|http://www.horticulturesource.com/images/RXPHRAISE32.jpg|6.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||dl-RXPHRAISE128|22574|Rx Green Solutions Raise pH Adjuster, 128-Ounce|RAISE is a pH adjuster that effectively increases low pH levels to the desired level using potassium hydroxide. Levels outside the recommended pH range can cause nutrient deficiencies and result in slowed growth. Most plants require a pH of 5.5-6.5.Scientifically developed for professional growers worldwideEffectively increases low levels of pH to desired levelsPromotes nutrient intake and faster growth ratesActive ingredient: potassium hydroxideApply directly to pre-mixed nutrient solution|http://www.horticulturesource.com/rx-green-solutions-raise-ph-adjuster-128-ounce-p22574/|http://www.horticulturesource.com/images/RXPHRAISE128.jpg|15.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU27750|22754|Bluelab 2.77 EC Conductivity Solution 500 ml, case of 6|The 2.77 EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. These solutions should be stored in a cool place out of direct sun and heat.|http://www.horticulturesource.com/bluelab-bluelab-2-77-ec-conductivity-solution-500-ml-case-of-6-p22754/|http://www.horticulturesource.com/images/BLU27750.jpg|43.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU27725|22755|Bluelab 2.77 EC Conductivity Solution 250 ml, case of 6|Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.|http://www.horticulturesource.com/bluelab-bluelab-2-77-ec-conductivity-solution-250-ml-case-of-6-p22755/|http://www.horticulturesource.com/images/BLU27725.jpg|32.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU4250|22756|Bluelab pH 4.0 Calibration Solution 250 ml, case of 6|Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.|http://www.horticulturesource.com/bluelab-bluelab-ph-4-0-calibration-solution-250-ml-case-of-6-p22756/|http://www.horticulturesource.com/images/BLU4250.jpg|32.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Blackjack|hf-BLU4500|22757|Bluelab pH 4.0 Calibration Solution 500 ml, case of 6|Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.|http://www.horticulturesource.com/blackjack-bluelab-ph-4-0-calibration-solution-500-ml-case-of-6-p22757/|http://www.horticulturesource.com/images/BLU4500.jpg|43.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU7250|22759|Bluelab pH 7.0 Calibration Solution 250 ml, case of 6|Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.|http://www.horticulturesource.com/bluelab-bluelab-ph-7-0-calibration-solution-250-ml-case-of-6-p22759/|http://www.horticulturesource.com/images/BLU7250.jpg|32.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|hf-BLU7500|22760|Bluelab pH 7.0 Calibration Solution 500 ml, case of 6|Calibration and conductivity standard solutions... a must in every grower's toolbox.The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe.Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.Bluelab's EC/CF equipment does not need calibrating as they are all factory calibrated here at Bluelab. The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe.Contamination between solutions can easily occur, which will affect the validity of the calibration. Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed.|http://www.horticulturesource.com/bluelab-bluelab-ph-7-0-calibration-solution-500-ml-case-of-6-p22760/|http://www.horticulturesource.com/images/BLU7500.jpg|43.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|hf-HMDASP20|24798|HM Digital Variety, 20 ml sachets, box of 20 units|A variety pack of 5 (each) 20 ml packs of all buffer, storage and TDS calibration solution for a healthy, accurate meters.(5) KCl Storage Solution(5) pH 7.0 Buffer solution(5) pH 4.0 Buffer solution(5) 1000 ppm NaCl Calibration Solutionandnbsp;|http://www.horticulturesource.com/hm-digital-hm-digital-variety-20-ml-sachets-box-of-20-units-p24798/|http://www.horticulturesource.com/images/HMDASP20.jpg|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|HM Digital|hf-HMDCP1000|24799|HM Digital 1000 ppm NaCl Calibration Solution, 20 ml sachets, box of 20|For optimal performance, re-calibrate your meters periodically with a 20 ml pack of 1000ppm calibration solution.|http://www.horticulturesource.com/hm-digital-hm-digital-1000-ppm-nacl-calibration-solution-20-ml-sachets-box-of-20-p24799/|http://www.horticulturesource.com/images/HMDCP1000.jpg|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||hf-HMDPHPSTOR|24800|HM Digital KCl Storage Solution, 20 ml sachets, box of 20|20 ml packs of Potassium Chloride (KCl) is the most important thing to a healthy working pH meter. Think of it as motor oil for a car. You have to keep you probe moist in this solution at all times.|http://www.horticulturesource.com/hm-digital-kcl-storage-solution-20-ml-sachets-box-of-20-p24800/|http://www.horticulturesource.com/images/HMDPHPSTOR.jpg|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down||hf-HMDPHP7|24801|HM Digital pH 7.0 Buffer Solution, 20 ml sachets, box of 20|20 ml pack of pH 7 buffer solution will you calibrate your probe to neutral. Do this before calibrating to 4 pH.|http://www.horticulturesource.com/hm-digital-ph-7-0-buffer-solution-20-ml-sachets-box-of-20-p24801/|http://www.horticulturesource.com/images/HMDPHP7.jpg|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724007|25961|Emerald Harvest pH Up Quart/0.95 Liter (12/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution. Use pH Up as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-up-quart-0-95-liter-12-cs--p25961/|http://www.horticulturesource.com/images/724007.jpg|10.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724008|25962|Emerald Harvest pH Up 2 Quart/1.89 Liter (6/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution. Use pH Up as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-up-2-quart-1-89-liter-6-cs--p25962/|http://www.horticulturesource.com/images/724008.jpg|19.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724009|25963|Emerald Harvest pH Up Gallon/3.79 Liter (4/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution. Use pH Up as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-up-gallon-3-79-liter-4-cs--p25963/|http://www.horticulturesource.com/images/724009.jpg|33.8800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724010|25964|Emerald Harvest pH Up 2.5 Gallon/9.46 Liter (2/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution. Use pH Up as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-up-2-5-gallon-9-46-liter-2-cs--p25964/|http://www.horticulturesource.com/images/724010.jpg|70.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724011|25965|Emerald Harvest pH Up 6 Gallon/22.71 Liter (1/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution. Use pH Up as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-up-6-gallon-22-71-liter-1-cs--p25965/|http://www.horticulturesource.com/images/724011.jpg|130.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724014|25966|Emerald Harvest pH Down Quart/0.95 Liter (12/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Down. A pH reading above 6.5 is considered too alkaline for most hydroponic gardens. This premium pH acidifier allows you to reduce the pH of your nutrient solution. Use pH Down as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-down-quart-0-95-liter-12-cs--p25966/|http://www.horticulturesource.com/images/724014.jpg|10.8900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724015|25967|Emerald Harvest pH Down 2 Quart/1.89 Liter (6/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Down. A pH reading above 6.5 is considered too alkaline for most hydroponic gardens. This premium pH acidifier allows you to reduce the pH of your nutrient solution. Use pH Down as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-down-2-quart-1-89-liter-6-cs--p25967/|http://www.horticulturesource.com/images/724014.jpg|19.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724016|25968|Emerald Harvest pH Down Gallon/3.79 Liter (4/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Down. A pH reading above 6.5 is considered too alkaline for most hydroponic gardens. This premium pH acidifier allows you to reduce the pH of your nutrient solution. Use pH Down as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-down-gallon-3-79-liter-4-cs--p25968/|http://www.horticulturesource.com/images/724016.jpg|33.8800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724017|25969|Emerald Harvest pH Down 2.5 Gallon/9.46 Liter (2/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Down. A pH reading above 6.5 is considered too alkaline for most hydroponic gardens. This premium pH acidifier allows you to reduce the pH of your nutrient solution. Use pH Down as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-down-2-5-gallon-9-46-liter-2-cs--p25969/|http://www.horticulturesource.com/images/724016.jpg|70.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Emerald Harvest Co.|724018|25970|Emerald Harvest pH Down 6 Gallon/22.71 Liter (1/Cs)|Keep your nutrient solution in the sweet spot with Emerald Harvest pH Down. A pH reading above 6.5 is considered too alkaline for most hydroponic gardens. This premium pH acidifier allows you to reduce the pH of your nutrient solution. Use pH Down as needed for guaranteed professional results.|http://www.horticulturesource.com/emerald-harvest-co-emerald-harvest-ph-down-6-gallon-22-71-liter-1-cs--p25970/|http://www.horticulturesource.com/images/724018.jpg|130.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Calibration, Storage & Cleaning Solutions, pH Up & Down|Bluelab|716495|26036|Bluelab pH Probe KCI Storage Solution 250ml (6/Cs)|The perfect solution to store and hydrate your Bluelab pH products. Bluelab pH Probe KCl Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCl solution to store the pH pen robe after use and hydrate monthly. Bluelab pH Probe KCl Storage Solution is manufactured to high laboratory standards.|http://www.horticulturesource.com/bluelab-bluelab-ph-probe-kci-storage-solution-250ml-6-cs--p26036/|http://www.horticulturesource.com/images/716495-01.jpg|14.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Sun System / Sunlight Supply|716095|1701|INDOOR/OUTDOOR DIGITAL LIGHT METER WITH WATERPROOF PROBE|DIGITAL LIGHT METERMeasures footcandles and luxRange 20 - 20k lux (20 - 20k footcandles)Commercial qualityExtremely accurateBacklit digital displayBattery - 9 voltSilicon photodiode sensorpH / EC / TDS METERS and SOLUTIONS|http://www.horticulturesource.com/sun-system-sunlight-supply-indoor-outdoor-digital-light-meter-with-waterproof-probe-p1701/|http://www.horticulturesource.com/images/716095.jpg|107.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Oregon Scientific|716515|1727|OS MODEL THT 312 INDOOR/OUTDOOR THERMOMETER WITH DIGITAL ALARM CLOCK|Oregon Scientific Thermometer With Digital Thermometer IN/OUT THERM.W DIGITAL ALARM Water proof outdoor probeLED backlight12 hour clock with alarm10 foot cable with probeLCD displays time, indoor andamp; outdoor temperature simultaneouslyBatteries not included (Requires 2 AAA) Manufacturer's Product Information 2007 MSRP Each $18.95 Case Weight0.44 LB Case Dimensions8.5 x 6. x 1.5 IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-model-tht-312-indoor-outdoor-thermometer-with-digital-alarm-clock-p1727/|http://www.horticulturesource.com/images/716515.jpg|15.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Oregon Scientific|716517|1728|OS MODEL RMR 383 HGA INDOOR/OUTDOOR THERMOMETER and HYGROMETER WITH ATOMIC CLOCK|Oregon Scientific Indoor/Outdoor Thermometer/Hygrometer INDOOR/OUTDOOR THERM./HYGRO. RMR383 Displays the indoor and outdoor temperature using wireless sensorDisplays the indoor humidity levelsAutomatically sets itself to the U.S. Atomic Clock and adjusts for Daylight Savings Time.Calculates comfort level based on temperature and humidity readingsIce Alert function flashes icon when outdoor temperatures near freezingWirelessly transmits weather data 100 ft awayDisplays the day and month in five languages for easy referenceCustomizable temperature and humidity alarm alerts user to set high or low temperature levels outdoor temperature range from -22F to 140FUnit package measurements: 10 Long x 3.8 Deep x 9.1 HighTake 2 AA batteries not includedAlarm sounds if min or max temperature reached Manufacturer's Product Information 2007 MSRP Each $39.95 Case Weight0.75 LB Case Dimensions10.5 x 3. x 9. IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-model-rmr-383-hga-indoor-outdoor-thermometer-hygrometer-with-atomic-clock-p1728/|http://www.horticulturesource.com/images/716517.jpg|32.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Oregon Scientific|716519|1729|OS MODEL BAR 388 HGA WIRELESS WEATHER STATION WITH TEMPERATURE, HUMIDITY and ATOMIC CLOCK|Oregon Scientific Wireless Weather Station WEATHER STATION W/ TEMP/ HUMIDI Forecast the weather 12-24 hr in advance using graphical iconsDisplay in and outdoor temperature andamp; humidity using wireless sensorAutomatically sets itself to the US Atomic Clock andamp; adjust for daylight saving timeDisplays the current barometric pressureMoon phase icon helps gauge moonlight andamp; tides for outdoor activitiesDisplays three levels of temperature andamp; humidity trends: Rising, Steady, or FallingCalculates and displays heat index reading based on outdoor temperature and humidityFeatures andamp; alarm clock with eight-minute snooze functionCalculates comfort level based on temperature andamp; humidity readingsIce Warning function flashes icon when outdoor temperature nears freezingOutdoor sensor temperature range: -22F to 140F Manufacturer's Product Information 2007 MSRP Each $59.95 Case Weight1.03 LB Case Dimensions13. x 11.25 x 4.25 IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-model-bar-388-hga-wireless-weather-station-with-temperature-humidity-atomic-clock-p1729/|http://www.horticulturesource.com/images/716519.jpg|48.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Oregon Scientific|716520|1730|OS WATER RESISTANT THERMOMETER|Oregon Scientific Water Resistant Thermometer WATER RESISTANT THERMOMETER Measures with water proof outdoor probeMonitors indoor temperature from 32 to 122 FMonitors outdoor temperature from -58 to 158 FDisplay alternates between time and temperature12 foot cable with probeWall mount or desktop display optionsBatteries included 1 AAA Manufacturer's Product Information 2007 MSRP Each $12.95 Case Weight0.50 LB Case Dimensions8.5 x 6. x 1.5 IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-water-resistant-thermometer-p1730/|http://www.horticulturesource.com/images/716520.jpg|10.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Oregon Scientific|716535|1732|OS REMOTE SENSOR- TEMPERATURE and HUMIDITY|Oregon Scientific Remote Sensor - Temperature and Humidity REMOTE SENSOR- TEMPERATURE and Humidity Model THGR 268 replaced by THGR122NXLCD screen on unit for temperature and humidity viewingTemperature and humidity appear on both remote and main unitBatteries 2 AAActual Size: 2.75 x .75 x 4 Manufacturer's Product Information 2007 MSRP Each $34.95 Case Weight0.42 LB Case Dimensions8.5 x 6. x 1.5 IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-remote-sensor-temperature-humidity-p1732/|http://www.horticulturesource.com/images/716535.jpg|24.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||716560|1894|Grower's Edge Large Display Thermometer / Hygrometer (20/Cs)|Grower's Edge Large Display Thermometer and HygrometerMeasures indoor/outdoor temperature and indoor humidity. Stores the Min./Max. values of the indoor/outdoor temperature and indoor humidity. Switch between degrees C and degrees F. Clock function with alarm and a 12/24 hour mode switch. 8 minutes snooze function. Waterproof temperature probe. Comes with 1 AAA alkaline battery. One year warranty.|http://www.horticulturesource.com/grower-s-edge-large-display-thermometer-hygrometer-20-cs--p1894/|http://www.horticulturesource.com/images/716560.png|13.47|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Milwaukee Instruments|716430|2383|MI LUX LIGHT METER WITH WATERPROOF PROBE|Lux Light Meter With Waterproof Probe Model SM700 UNDERWATER LIGHT METER NEW!User can select 3 ranges: 0.00 - 1999 Lux, 2000 - 19999 Lux or 20000 TO 50000 Lux. The range setting through key buttons. Resolution of 1 Lux / 10 Lux / 100 Lux with accuracy of +/- 6%. The peak wave is 560 nm with silicon photo diode sensor. 9 Volt battery - 150 operational hours. Drop ship. Manufacturer's Product Information 2007 MSRP Each $93.95|http://www.horticulturesource.com/milwaukee-instruments-mi-lux-light-meter-with-waterproof-probe-p2383/|http://www.horticulturesource.com/images/SM700.jpg|103.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI212|3823|Moisture/Light Meter.|RAPITEST MOISTURE AND LIGHT METER WITH PROBE.|http://www.horticulturesource.com/moisture-light-meter--p3823/|http://www.horticulturesource.com/images/mi212infopic1.jpg|21.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Control Wizard|CW610|4189|Indoor Weatherman.|Indoor Weatherman by Control Wizard Products.Minimum/Maximum Thermometer with Humidity Readings as well.|http://www.horticulturesource.com/control-wizard-indoor-weatherman--p4189/|http://www.horticulturesource.com/images/cw610infopic1.jpg|11.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI419|4190|Digital Thermometer/Hygrometer.|Digital LCD Minimum, Maximum thermometer and humidity device. Allows you to reset minimum and maximum settings. Large letters for easy reading. Comes with 1 AA battery. This is not a controller. Displays the readings only.|http://www.horticulturesource.com/digital-thermometer-hygrometer--p4190/|http://www.horticulturesource.com/images/MI419-n.jpg|19.93|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI430|4191|Floating Thermometer.|Floating Thermometer for Nutrient Tanks. Floats in tank and ready to tell the nutrient, soil or air temperature.Comes with a suction cup. May be used to hang from suction cup on the inside of cutting domes or stuck into growing media. Cuttings should be 70-80 degrees in soil or rockwool. Nutrient should be at 75 degrees.|http://www.horticulturesource.com/floating-thermometer--p4191/|http://www.horticulturesource.com/images/mi430infopic1.jpg|2.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI730|4192|High/Low Thermometer.|Farmtek High/Low Thermometer. Records the days high and low temperatures. Uses real mercury for accurate readings. The small red wand detaches and you pull the indicator back in contact with the mercury to reset. Great product.|http://www.horticulturesource.com/high-low-thermometer--p4192/|http://www.horticulturesource.com/images/mi730infopic1.jpg|21.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI731|4193|Thermometer.|Farmtek Thermometer. Large and easy to read.|http://www.horticulturesource.com/thermometer--p4193/|http://www.horticulturesource.com/images/mi731infopic1.jpg|10.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||EL500|4195|EL500 - Cooling Thermostat.|COOLING THERMOSTAT WITH 120 VOLT PIGGYBACK POWER CORDThis thermostat has a gas filled coil for great reliability. It has a plus or minus 2 degrees of accuracy. It turns fans ON when the temperature has reached 4 degrees above set point and turns fans OFF at 3 degrees below set point. Simply plug your fan into the thermostat's cord, set the dial and your done. This thermostat is not water-tight. A good price for such a good tool.|http://www.horticulturesource.com/el500-cooling-thermostat--p4195/|http://www.horticulturesource.com/images/el500infopic1.jpg|57.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||FA123|4196|Thermostat.|COOLING OR HEATING THERMOSTAT. HARDWIRE 120 OR 240 VOLT. Made in USAThis thermostat requires hard-wiring and is designed for in-line operation. You basicly treat it like a light switch when you wire it. It simply cuts off the electricity when the bi-metal switch exceeds it's set point. Comes with instructions.|http://www.horticulturesource.com/thermostat--p4196/|http://www.horticulturesource.com/images/fa123infopic1.jpg|34.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||FA200|4197|Watertight Thermostat.|COOLING OR HEATING WATERTIGHT THERMOSTAT. HARDWIRE 120 OR 240. Made in HollandThis thermostat requires you to hardwire a piggy back power cord into it or install it in-line through your wall outlet electrical system. Comes with instructions.|http://www.horticulturesource.com/watertight-thermostat--p4197/|http://www.horticulturesource.com/images/fa200infopic1.jpg|59.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||FA201|4198|Watertight Thermostat.|COOLING OR HEATING WATERTIGHT THERMOSTAT WITH 120 VOLT PIGGYBACK POWER CORDThis thermostat is wired and ready to go. Simply plug your fan into the piggy back power cord. It is water tight with a protective plastic cover. Nice unit. Gas filled coil thermostat for great reliability and accuracy. Turns equipment ON at 4 degrees above the set point and OFF 3 degrees below set point. Made in Holland by guys who know how to make great thermostats.|http://www.horticulturesource.com/watertight-thermostat--p4198/|http://www.horticulturesource.com/images/fa201infopic1.jpg|93.6900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|P3 International|734130|6104|LUXPRO PROGRAMMABLE DIGITAL THERMOSTAT|LuxPro PSP300 Programmable Digital ThermostatEasy to program.Separate programs for heating and cooling.Temporary and constant temperature override.Three year warranty.Plugs into normal 120 volt 15 amp electrical outlet.5-minute short cycle protection.|http://www.horticulturesource.com/p3-international-luxpro-programmable-digital-thermostat-p6104/|http://www.horticulturesource.com/images/734130.jpeg|49.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|HydroFarm|eco-4541|6368|Hydrofarm Light Meter|Hydrofarm Light Meter (eco-4541)Hydrofarm Light Meter (Footcandles) Hydrofarm Light MeterPhotosynthesis andamp; Plant Growth depend on the sun or specially designed lighting systems. But of that light reaching the plant, only specific types of energy (in the lighting spectrum) drive the photosynthesis process. Since light is the most important single factor affecting your plants' life cycles, quality light meters are an essential tool in determining accurately if your crop is receiving the maximum light needed for healthy growth. A light meter allows commercial growers an accurate means of adapting to their plants' needs as the light conditions change during a full growing season.Identify best light level of healthy plantsEasy to use hand-held designGet precise reading with two scalesIncludes instructions and "Consumer's Guide to Light Gardening" brochureLifetime silicon sensor - no batteries requiredRead up to 5000 footcandles of sun, high intensity or fluorescent lightExclusive "Zero" calibration feature - accurate to 2%Full two year warranty - the longest in the industryHydrofarm Light Meter helps the gardener to identify the bestlight for healthy plants. The hand held design makes it easy to use.Featuring two scales reading up to 5000 footcandles of sun, HIDor fluorescent light, instructions and a "Consumer's Guide to LightGardening" brochure, lifetime silicon sensor (no batteries required),accuracy to +2% and a two year warranty.SKU: LG17000 Weight: 1.0 lbs.Package Dimensions: 10.1L x 5.1W x 0.1HSuggested Retail: $22.95 Manufacturer's Product Information MSRP $22.95|http://www.horticulturesource.com/hydrofarm-hydrofarm-light-meter-p6368/|http://www.horticulturesource.com/images/eco-4541.jpg|15.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|C.A.P. Custom Automated Products|MTR-012|7626|Digital Thermo-Hygrometer|DIGITAL THERMO-HYGROMETER (MTR-012)DIGITAL THERMO-HYGROMETERThis Digital Thermo-Hygrometer features minimumand maximum temperature with memory(in/out). Has a jumbo thermo-clock, hygrometer,measures temperature from -50 degrees C - 70 degrees C or -58 degrees F -158 degrees F,and 1 AAA battery is included. Comes with probe. Manufacturer's Product Information 2009 MSRP $24.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-digital-thermo-hygrometer-p7626/|http://www.horticulturesource.com/images/MTR-012.jpg|20.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|C.A.P. Custom Automated Products|MTR-013|7627|Indoor Digital Temperature and Humidity|La Crosse Weather One Wireless StationThe Weather One series by La Crosse Technology is a wireless weather station with digital time display. Features include a wireless outdoor humidity and temperature sensor with transmission range up to 330 feet. Can receive up to 3 sensors. requires 4 AA batteries, not included.|http://www.horticulturesource.com/c-a-p-custom-automated-products-indoor-digital-temperature-humidity-p7627/|http://www.horticulturesource.com/images/MTR-013-new.jpg|24.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Sun System / Sunlight Supply|716097|8346|SUN SYSTEM LIGHT METER|Light Meter - Sun System DIGITAL LIGHT METERPremium quality.5 digit display.Measures in foot candles andamp; lux.Automatic power off.Automatic zero when power on.Range: Up to 4,000 fc andamp; 40,000 lux.Batteries included.MSRP: $99.95|http://www.horticulturesource.com/sun-system-sunlight-supply-sun-system-light-meter-p8346/|http://www.horticulturesource.com/images/716097.jpeg|71.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||716555|8347|Grower's Edge Digital Thermometer / Hygrometer w/ Remote Sensor|Grower's Edge Thermometer/Hygrometer with SensorLarge screen digital readout. Wireless sensor transmits up to 50 feet. Expandable to accept 2 additional sensors. Waterproof casing is chemical and UV resistant. Displays degrees in F or C. Wireless Sensor - For use with Grower's Edge Digital Thermometer and Hygrometer #716555. Transmits up to 50 feet. 2 AAA batteries included.Related item:716557 Grower's Edge Wireless Remote Sensor|http://www.horticulturesource.com/grower-s-edge-digital-thermometer-hygrometer-w-remote-sensor-p8347/|http://www.horticulturesource.com/images/716555.jpeg|26.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||MI732|8648|13" Round Thermometer|13" Round ThermometerKeep an eye on your growing area's temperature with this large numbered thermometer.|http://www.horticulturesource.com/13-round-thermometer-p8648/|http://www.horticulturesource.com/images/mi732infopic1.jpg|10.1600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Trans Instruments|716022|9773|Light Meter - HortiCare LITEcheck|Light Meter - HortiCare LITEcheck (716022)Light Meter - HortiCare LITEcheckPlants have an optimal intensity of light. The process of photosynthesis is maximized and plant growth is greatest at this optimal intensity. If the level of light is less, growth is reduced. In a typical plant, light level of 400 foot Candle is just enough for the rate of photosynthesis to equal the rate of respiration. This is called the light compensation point. At this intensity, there is no net growth, but the plant can survive. Therefore, checking the light intensity is important for proper plant growth. The control of light intensity allows grower to achieve the desired growth in plants.OPERATING RANGE: 0 to 5,000 foot candle. RESOLUTION: 10 foot candle. ACCURACY: +/-8 % (full scale). BATTERY: 4 x 1.5V Button Cell (Alkaline A76 or equiv.). Manufacturer's Product Information MSRP $71.95|http://www.horticulturesource.com/trans-instruments-light-meter-horticare-litecheck-p9773/|http://www.horticulturesource.com/images/716022.jpg|54.8200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Sun System / Sunlight Supply|748200|10810|SUN SYSTEM HANDHELD PAR METER|PAR Meter with Integrated SensorSun System PAR Meter comes with an integrated sensor to measure photosynthetic active radiation (PAR). Use inside with Sun System grow lights or outside with natural sunlight. Simple and easy to use. Compact size with integrated sensor. 1 year warranty.|http://www.horticulturesource.com/sun-system-sunlight-supply-sun-system-handheld-par-meter-p10810/|http://www.horticulturesource.com/images/748200-new.jpg|252.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|Sun System / Sunlight Supply|748205|10811|SUN SYSTEM HANDHELD PAR METER W/ REMOTE SENSOR|PAR Meter with Remote SensorSun System PAR Meter comes with an integrated sensor to measure photosynthetic active radiation (PAR). Use inside with Sun System grow lights or outside with natural sunlight. Simple and easy to use. Compact size with integrated sensor. 1 year warranty.|http://www.horticulturesource.com/sun-system-sunlight-supply-sun-system-handheld-par-meter-w-remote-sensor-p10811/|http://www.horticulturesource.com/images/748200.png|296.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||726125|10930|MINI GREENHOUSE THERMO-HYGROMETER|Mondi Mini Greenhouse Thermo-Hygrometer This revolutionary product mounts anywhere on your Mondi Mini Greenhouseand reads the temperature and humidity inside the dome. In combinationwith Mondi Easy Vents, it ensures plants get the start they need byproviding growers with the essential real-time information necessary toproduce large quantities of healthy plants. Displays current temperature and humidity, as well as min/max temperatures and humidity history. Celsius ( degrees C) and Fahrenheit ( degrees F). Made from premium Japanese components and technology. Includes battery.|http://www.horticulturesource.com/mini-greenhouse-thermo-hygrometer-p10930/|http://www.horticulturesource.com/images/726125.png|11.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||eco-2369|11399|Temperature/Humidity Gauge|12" Temperature/Humidity GaugeGet temperature and humidity levels at a glance -- even from across the room. The Active Air temperature humidity gauge has a familiar clock face with large numbers on a large 12" dial. You'll always be informed of the climate in your growing environment.SKU: HGTHG|http://www.horticulturesource.com/temperature-humidity-gauge-p11399/|http://www.horticulturesource.com/images/eco-2369.JPG|16.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||716919|12863|Rapitest Dial Compsot Thermometer (6/Cs)|Rapitest Dial Compost ThermometerEasy to read stainless steel thermometer with 19" probe, specifically designed for compost.|http://www.horticulturesource.com/rapitest-dial-compsot-thermometer-6-cs--p12863/|http://www.horticulturesource.com/images/716919.png|15.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|HydroFarm|eco-5552|13587|Quantum Light Meter|Measures grow lights or sunlight3 scales for precise readingsConvenient hand-held remote sensorLifetime silicon cell - includes battery, informative booklet with lighting recommendations and carrying case|http://www.horticulturesource.com/hydrofarm-quantum-light-meter-p13587/|http://www.horticulturesource.com/images/eco-5552.jpg|192.4600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||dl-301005|14307|GRO1 Wireless Weather Station + Sensor|GRO1 Wireless Weather Station + Sensor (301005)The Gro1 Wireless Weather Station + Sensor is the perfect system to help keep track of the temperature and humidity in multiple grow rooms or greenhouses. The station comes with 1 sensor, but can pair with up to 3, each with a wireless range of up to 165 feet. Additional sensors may be purchased separately (product #301015). This weather station displays the date and time, the current moon phase, a weather trend indicator, temperature, humidity, electronic forecast, and the indoor comfort level. It also features an Alarm and Snooze function. Manufacturer's Product Information MSRP $32.99 Dimensions10 x 1.5 x 11|http://www.horticulturesource.com/gro1-wireless-weather-station-sensor-p14307/|http://www.horticulturesource.com/images/301005-.jpg|19.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||dl-301015|14308|GRO1 Wireless Sensor|GRO1 Wireless Sensor (301015)This sensor pairs exclusively with the Gro1 Wireless Weather Station (part # 301005), displays the temperature and humidity readings, and has a range of up to 165 feet. A maximum of 3 sensors may be paired per station. Manufacturer's Product Information MSRP $19.99 Dimensions5 x 1.5 x 7.5|http://www.horticulturesource.com/gro1-wireless-sensor-p14308/|http://www.horticulturesource.com/images/weatherstation_sensor2.jpg|9.2700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||dl-301001|14309|GRO1 Weather Station (Non-wireless)|GRO1 Weather Station (Non-wireless) (301001)The Gro1 Weather Station is the must-have product for every grow room or greenhouse. This weather station displays the date and time, the electronic weather forecast, temperature, humidity, 12 hour thermometer trend, and the indoor comfort index (dry, wet, comfortable). It also features an Alarm and Snooze function and bright blue LED backlight. Manufacturer's Product Information MSRP $19.99 Dimensions9 x 1 x 5|http://www.horticulturesource.com/gro1-weather-station-non-wireless--p14309/|http://www.horticulturesource.com/images/weatherstation_nonwireless2.jpg|8.6400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||700578|14881|Samsung Max and Vivace Replacement Programmable Thermostat|Wall Mounted Programmable Thermostat for Samsung Mini-SplitOptional programmable thermostat for the Samsung Max Mini-Split systems.|http://www.horticulturesource.com/samsung-max-vivace-replacement-programmable-thermostat-p14881/|http://www.horticulturesource.com/images/700578.png|230.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||dl-997412|15756|SUCTION CUP Thermometer|SUCTION CUP Thermometer Provide accurate water temperature. Easy to read. Includes suction cup for easy mounting.|http://www.horticulturesource.com/suction-cup-thermometer-p15756/|http://www.horticulturesource.com/images/997412-new.jpg|1.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|HydroFarm|hf-HGIOHT|19034|Active Air Indoor-Outdoor Thermometer w/Hygrometer|Active Air Active Air Indoor-Outdoor Thermometer w/Hygrometer (HGIOHT)Active Air's indoor-outdoor thermometer gives you more. Made of sturdy materials to stand up to the climate of your indoor grow room, this essential tool features a large display to read the current temperature and humidity levels. A remote probe allows you to sample two temperatures at once and record the high and low points for both temperature and humidity. Manufacturer's Product Information MSRP each $19.95 UPC638104106016 Dimensions5 x 1.25 x 9.02 Case Weight7 Case Quantity25|http://www.horticulturesource.com/hydrofarm-active-air-indoor-outdoor-thermometer-w-hygrometer-p19034/|http://www.horticulturesource.com/images/HGIOHT.jpg|13.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|HydroFarm|hf-HGIOHTJ|19035|Active Air Hygro-Thermometer|Active Air Active Air Hygro-Thermometer (HGIOHTJ)You'll find multiple uses for and multiple places to put this Active Air hygro-thermometer. Check the large number LCD display from a distance, and move it around with you as you go about your gardening tasks. The hygro-thermometer's readings are extremely accurate. Prop it upandnbsp;on your workspace, close to your plants, or wall-mount it forandnbsp;hands-free hanging readings. Manufacturer's Product Information MSRP each $21.95 UPC638104000666 Dimensions4.8 x 1.9 x 8.2 Case Weight11 Case Quantity25|http://www.horticulturesource.com/hydrofarm-active-air-hygro-thermometer-p19035/|http://www.horticulturesource.com/images/HGIOHTJ.jpg|14.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters|HydroFarm|hf-HGTHG|19166|12" Temperature/Humidity Gauge|12" Temperature/Humidity Gauge (HGTHG)Get temperature and humidity levels at a glance -- even from across the room. The Active Air temperature humidity gauge has a familiar clock face with large numbers on a large 12"andnbsp;dial. You'll always be informed of the climate in your growing environment.andnbsp; Manufacturer's Product Information MSRP each $24.95 UPC638104002523 Dimensions3.38 x 1 x 9.63 Case Weight6 Case Quantity5|http://www.horticulturesource.com/hydrofarm-12-temperature-humidity-gauge-p19166/|http://www.horticulturesource.com/images/HGTHG.jpg|18.1200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||hf-LCT1111|19924|Temp and Humidity Wireless Alert System|La Crosse Technology Temp and Humidity Wireless Alert System (LCT1111)Use a smartphone, tablet or computer to receive alerts and remotely monitor temperature and humidity levels that affect your greenhouse, garden or other sensitive plants.* Monitor ambient temperature and humidity to prevent damage to sensitive plants, frozen pipes or mold growth.*andbull; Measures ambient air temperature and humidityandbull; Sensor LCD toggles dataandbull; Sensor features weather resistant caseandbull; Sensor transmits to gateway in 200 ft. rangeandbull; Temperature range: -40anddeg;F to 140anddeg;Fandbull; Humidity: 3% to 99% (%RH)andbull; Sensor requires 2 AAA Alkaline batteries (not included)andbull; Add up to 5 sensors (sold separately) per gatewayandbull; Wall hanging or free standingandbull; Gateway connects to your router uploading data to lacrossealerts.com for remote monitoring and alerts.*andnbsp; (Internet and network router required, not included)andbull; Detachable probe to measure temperature of water, soil or air sold separatelyIncludes one wireless temperature and humidity sensor with mounting bracket and hardware, one gateway with LAN cable and AC adapter. Also, activation code card.andnbsp;andnbsp; Manufacturer's Product Information MSRP each $134.95 UPC757456987293 Dimensions1 x 10.25 x 7.88 Case Weight5 Case Quantity4|http://www.horticulturesource.com/temp-humidity-wireless-alert-system-p19924/|http://www.horticulturesource.com/images/LCT1111_3.jpg|36.2900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||hf-LCT9066|19925|Wireless Weather Station w/Moon Phase|La Crosse Technology Wireless Weather Station w/Moon Phase (LCT9066)Track what the weather is doing wirelessly. Receive outdoor temperature and humidity indoors. Included outdoor transmitter that has a range within 330 ft. Indoor display monitors indoor temp and humidity and moon phase. Manual 12 or 24 set time and requires 4 AAA batteries (not included.)Featuresandbull; 8 Moon phase iconsandbull; Wireless IN / OUT temperature (F/C) andbull; MIN / MAX value of temperatureandbull; Wireless IN / OUT humidity (%RH)andbull; Time display (manual setting) andbull; 12/24 Hour time displayandbull; Low battery indicatorsandbull; Transmission Range: 330 ft.andbull; Wall hanging or free standingandbull; Indoor Temp Range: 14.2 F to 139.8 F (-9.9 C to 59.9 C) andbull; Outdoor Temp Range: -39.8 F to 139.8 F (-39.9 C to 59.9 C) andbull; Humidity Range: 20% to 95% (Indoor), 1% to 99% (Outdoor)andbull; Receiver Power: 2 AAA alkaline batteries (not included)andbull; Sensor Power: 2 AAA alkaline batteries (not included)Includes one indoor display station and one wireless temperature and humidity sensor with mounting bracket.andnbsp;andnbsp; Manufacturer's Product Information MSRP each $34.95 UPC638104170000 Dimensions5.1 x 0.1 x 10.1 Case Weight10 Case Quantity16|http://www.horticulturesource.com/wireless-weather-station-w-moon-phase-p19925/|http://www.horticulturesource.com/images/LCT9066.jpg|23.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||hf-LCT2101|21950|La Crosse Technology Dry Temperature Probe w/ 6 ft Cord (SPECIAL ORDER)|(SPECIAL ORDER) Includes (1) dry temperature probe (on 6ft. cable) to measure air or dry soil. Use probe to monitor a separate room, refrigerator, freezer, electronics, or plants.|http://www.horticulturesource.com/la-crosse-technology-dry-temperature-probe-w-6-ft-cord-special-order--p21950/|http://www.horticulturesource.com/images/LCT2101.jpg|5.2700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Instruments, Thermometers, Hygrometers & Light Meters||716558|23809|Grower's Edge Jumbo Wall Thermometer (24/Cs)|Grower's Edge Jumbo Wall Thermometer measures temperature for indoor and outdoor environments. It measures temperature in Fahrenheit and Celsius. Grower's Edge Jumbo Wall Thermometer has a water resistant design that allows you to hang it indoors or outdoors. Extra large graphics on a white face makes it easy to read from long distances.|http://www.horticulturesource.com/grower-s-edge-jumbo-wall-thermometer-24-cs--p23809/|http://www.horticulturesource.com/images/716558.jpg|3.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734015|1961|INTERMATIC TN311-C HEAVY DUTY TIMER 15AMP|Intermatic Heavy Duty Timers INTERMATIC TIMER TN311-C 15AMP These heavy duty, grounded timers are ideal for automatically controlling air conditioners, personal computers, heaters, heavy-duty appliances and HID lighting fixtures. They plug directly into a wall outlet. Featuring 3 ON/3 OFF settings per day, 3-prong grounded plug and receptacle and a manual override on/off switch.Two models to choose from:TN311C - 1875W/120/1H.P./120V Maximum motor loadHB112C - 3750W/250/2H.P./240V Maximum motor load Manufacturer's Product Information 2007 MSRP Each $19.95 Case Weight0.43 LB Case Dimensions7. x 5. x 2.5 IN Case Quantity1|http://www.horticulturesource.com/intermatic-intermatic-tn311-c-heavy-duty-timer-15amp-p1961/|http://www.horticulturesource.com/images/734015-.png|11.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734020|1962|INTERMATIC HB112-C HEAVY DUTY TIMER 15AMP|Intermatic Heavy Duty Timers INTERMATIC TIMER HB112C 15 AMP These heavy duty, grounded timers are ideal for automatically controlling air conditioners, personal computers, heaters, heavy-duty appliances and HID lighting fixtures. They plug directly into a wall outlet. Featuring 3 ON/3 OFF settings per day, 3-prong grounded plug and receptacle and a manual override on/off switch.Two models to choose from:TN311C - 1875W/120/1H.P./120V Maximum motor loadHB112C - 3750W/250/2H.P./240V Maximum motor load Manufacturer's Product Information 2007 MSRP Each $36.95 Case Weight0.54 LB Case Dimensions7. x 4. x 3. IN Case Quantity1|http://www.horticulturesource.com/intermatic-intermatic-hb112-c-heavy-duty-timer-15amp-p1962/|http://www.horticulturesource.com/images/734020.jpg|14.9600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734025|1963|INTERMATIC DT 17C 7 DAY PROGRAMMABLE HEAVY DUTY GROUNDED DIGITAL TIMER|Intermatic 7 Day Programmable Heavy Duty Grounded Digital Timer DT 17C DIGITAL TIMER (8/CASE) Battery backup - batteries includedMaximum ON time: 6 days, 23 hours, 59 minutes.Minimum ON time: 1 minuteCapacity: 15 amps Resistive (1875 Watts), 500 Watts Tungsten.15 amps Inductive, 1/3 H.P - 120 Volts, 60 HzControls all types of loads, such as lamps (including fluorescent), TV's, stereos and appliances, providing up to 14 ON / 14 OFF settings per day or 98 ON / 98 Off settings in a week. It plugs directly into wall outlet (3-prong grounded plug and receptacle). Easy-to-set hand-held programming , LCD digital clock and readout with to-the-minute setting for accuracy. Features a manual override. Manufacturer's Product Information 2007 MSRP Each $26.95 Case Weight0.39 LB Case Dimensions8. x 5.5 x 2.5 IN Case Quantity1|http://www.horticulturesource.com/intermatic-intermatic-dt-17c-7-day-programmable-heavy-duty-grounded-digital-timer-p1963/|http://www.horticulturesource.com/images/734025.jpg|21.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734030|1964|INTERMATIC T101 HEAVY DUTY CONTRACTOR GRADE TIME SWITCH W/METAL CASE 40 AMP 120 VOLT|Intermatic Heavy-Duty Contractor Grade Time Switch INTERMATIC T101 TIMER Heavy duty lockable metal enclosureTamper proof designUnbreakableHeavy duty gear trainEasy to setT101 - 120 volt/AC/60 Hz/Single pole/Single throw/40 ampT104 - 208 to 277 volt/AC/60 Hz/Double pole/Single throw/40 amp Manufacturer's Product Information 2007 MSRP Each $65.95 Case Weight2.64 LB Case Dimensions8. x 5.5 x 3.25 IN Case Quantity1|http://www.horticulturesource.com/intermatic-intermatic-t101-heavy-duty-contractor-grade-time-switch-w-metal-case-40-amp-120-volt-p1964/|http://www.horticulturesource.com/images/734030.jpg|54.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734035|1965|INTERMATIC T104 HEAVY DUTY CONTRACTOR GRADE TIME SWITCH W/METAL CASE 40 AMP 208 TO 277 VOLT|Intermatic Heavy-Duty Contractor Grade Time Switch INTERMATIC T104 TIMER Heavy duty lockable metal enclosureTamper proof designUnbreakableHeavy duty gear trainEasy to setT101 - 120 volt/AC/60 Hz/Single pole/Single throw/40 ampT104 - 208 to 277 volt/AC/60 Hz/Double pole/Single throw/40 amp Manufacturer's Product Information 2007 MSRP Each $70.95 Case Weight2.68 LB Case Dimensions8. x 5.5 x 3.25 IN Case Quantity1|http://www.horticulturesource.com/intermatic-intermatic-t104-heavy-duty-contractor-grade-time-switch-w-metal-case-40-amp-208-to-277-volt-p1965/|http://www.horticulturesource.com/images/734035.jpg|61.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Grasslin|734047|1968|GRASSLIN T240 HEAVY DUTY A/C 24 HOUR ELECTO MECHANICAL PLUG IN TIMER 20AMP @ 240 VOLT|Grasslin T240 - 24Hr. Electro-Mechanical Plug-in Timer GRASSLIN T240 PLUG IN TIMER( 3 Features 24 hour electro-mechanical plug in timer. Programming resolution of 15 minutes. It has a manual override. Great for window A/C 240V AC or electric heaters. Grounded 3-conductor plug and receptacle. Running indicator and captive trippers.SPECIFICATIONS:Switch Rating: 20 amps resistive @240VACAmbient Temperature Range: 14 F to 122 F Manufacturer's Product Information 2007 MSRP Each $20.95 Case Weight0.43 LB Case Dimensions5. x 3.25 x 2.75 IN Case Quantity1|http://www.horticulturesource.com/grasslin-grasslin-t240-heavy-duty-a-c-24-hour-electo-mechanical-plug-in-timer-20amp-240-volt-p1968/|http://www.horticulturesource.com/images/734047.jpg|17.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|ECOPLUS|734057|1969|30 AMP TIMER BOX COMES WITH ECOPLUS DIGITAL TIMER 734105|30 Amp Timer Box 30 AMP TIMER BOX POWER CORD:1 - 30 Amp Dryer CordBREAKERS:1 - 20 Amp Breaker 240 volt1 - 10 Amp Breaker 120 voltRECEPTACLES:4 - 240 volt Receptacles (supplies up to 4 - 1000 watt light systems)2 - 120 volt Receptacles (supplies ac ces so ries such as fans or light mov ers)DIGITAL TIMER:7-Day Digital Timer42 Weekly ON/OFF Settings6 Daily ON/OFF SettingsManual OverrideBattery Back-upThis unit allows the user to run up to 4 - 1000 watt light systems and up to 10 amps of accessories from the same timer. An inline fuse protects the timer. Internally, the timer operates a contactor to control the power supply to the receptacles. Manufacturer's Product Information 2007 MSRP Each $299.95 Case Weight14.00 LB Case Dimensions16.25 x 18.5 x 6.75 IN Case Quantity1 Pallet Quantity25 UPC870883006068|http://www.horticulturesource.com/ecoplus-30-amp-timer-box-comes-with-ecoplus-digital-timer-734105-p1969/|http://www.horticulturesource.com/images/734057.jpg|192.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|ECOPLUS|734059|1970|50 AMP TIMER BOX COMES WITH ECOPLUS DIGITAL TIMER 734105|50 Amp Timer Box 50 AMP TIMER BOX POWER CORD:1 - 50 Amp Range CordBREAKERS:1 - 20 Amp Quad Breaker 240 volt1 - 10 Amp Breaker 120 voltRECEPTACLES:8 - 240 volt Receptacles (supplies up to 8 - 1000 watt light systems)2 - 120 volt Receptacles (supplies ac ces so ries such as fans or light movers)DIGITAL TIMER:7-Day Digital Timer42 Weekly ON/OFF Settings6 Daily ON/OFF SettingsManual OverrideBattery Back-upThis unit allows the user to run up to 8 - 1000 watt light systems and up to 10 amps of accessories from the same timer. An inline fuse protects the timer. Internally, the timer operates a contactor to control the power supply to the receptacles. Manufacturer's Product Information 2007 MSRP Each $429.95 Case Weight18.00 LB Case Dimensions16.25 x 18.5 x 6.75 IN Case Quantity1 Pallet Quantity25 UPC870883006075|http://www.horticulturesource.com/ecoplus-50-amp-timer-box-comes-with-ecoplus-digital-timer-734105-p1970/|http://www.horticulturesource.com/images/734059.jpg|312.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734100|1971|TITAN CONTROLS APOLLO 8 TWO OUTLET 24 HOUR ANALOG TIMER WITH 15 MINUTE INTERVALS (10/CASE)|Titan Controls Apollo 8 Two Outlet 24-Hr. Timer ECO PLUS/APOLLO 8 24HR DUAL TIMER 10/CS Dual timerEasy to useLarge display15 minute intervals15 ampsThe Apollo 8 - 24 hour programmable timer is the perfect timing solution for your hydro systems. With two outlets and a 15 amp capacity, it's easy to set to run your lights, pumps, fans, etc. The Apollo 8 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets.15 minute intervals.Heavy duty construction.Easy to use andamp; simple to operate.Plastic enclosure resists dust and moisture.Runs lights, pumps, fans, etc.15 Amps/120 Volts/60 Hz./1800 Watts.1 year warranty. Manufacturer's Product Information 2007 MSRP Each $17.95 Case Weight5.29 LB Case Dimensions18.25 x 10.5 x 5.5 IN Case Quantity10 UPC870883006099|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-8-two-outlet-24-hour-analog-timer-with-15-minute-intervals-10-case--p1971/|http://www.horticulturesource.com/images/734100-2.jpeg|8.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734105|1972|TITAN CONTROLS APOLLO 9 TWO OUTLET 24 HOUR DIGITAL TIMER WITH 15 MINUTE INTERVALS (10/CASE)|Titan Controls Apollo 9 ECOPLUS DIGITAL TIMER-15 AMP (10/CASE)The Apollo 9 - 24 hour digital timer is the perfect timing solution for your hydro systems. With two outlets and a 15 amp capacity, it's easy to set to run your lights, pumps, fans, etc. The Apollo 9 may be set to 1 minute intervals and run 8 separate schedules per day. It can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets with 1 minute intervals. Battery back-up feature saves settings if power goes out. Heavy duty construction with plastic enclosure resists dust and moisture. 15 Amps/120 Volts/60 Hz/1800 Watts. 1 year warranty. HINT: If not functioning properly, plug in for 5 minutes and press the reset button. This generally fixes any problem. MSRP: $22.95|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-9-two-outlet-24-hour-digital-timer-with-15-minute-intervals-10-case--p1972/|http://www.horticulturesource.com/images/734105-2.jpg|10.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sun System / Sunlight Supply|734115|1973|ENCORE REPEAT CYCLE TIMER 15 AMP|Encore Repeat Cycle Timer ENCORE REPEAT CYCLE TIMER (144/case but sold individually) Perfect for indoor gardens, greenhouses, foggers, misters, sprayers, pumps, fans and any other application requiring automatic short cycle on/off timing. Choose cycle running times (on) between 5 seconds and 30 minutes with interval gaps (off) ranging between 5 minutes and 8 hours. Easy to read, control and set up. Plugs directly into standard power outlet with 78 power cord. Connects to timed equipment via 13 cord. Operates on 120 volts AC with 15 amp switching capacity. Manufacturer's Product Information 2007 MSRP Each $88.95 Case Weight0.91 LB Case Dimensions10.5 x 6.75 x 3. IN Case Quantity1|http://www.horticulturesource.com/sun-system-sunlight-supply-encore-repeat-cycle-timer-15-amp-p1973/|http://www.horticulturesource.com/images/734115.jpg|72.2250|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Milwaukee Instruments|716780|2388|MI SMART PH CONTROLLER #SMS122|Smart pH Controller Model SMS122 SMS 122 PH CONTROLLER pH controller, range: 0.0 to 14.0, with +/-0.2 pH accuracy and 2 point manual calibration. Set point range 5.5 to 9.5 pH, and LED visual alarm active when reading is higher than set point. Power plug socket for CO2 dosing. Supplied with 12 volt DC power adapter, MA911B/2 double junction pH electrode, 20 ml. pH 7.01 sachet buffer solution and screwdriver for calibration. See also MA957 regulator. Drop ship. Manufacturer's Product Information 2007 MSRP Each $141.95|http://www.horticulturesource.com/milwaukee-instruments-mi-smart-ph-controller-sms122-p2388/|http://www.horticulturesource.com/images/716780.jpg|123.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Milwaukee Instruments|716785|2389|MI pH/ORP CONTROLLER #SMS125|Smart pH/Orp Controller Model SMS125 SMS 125 PH/ORP CONTROLLER pH/ORP controller, range: 0.00 to 14.00 pH/┬+/-1000 mV with ┬+/-0.2 pH/┬+/-5 mV accuracy with 2 selectable set points for pH and ORP and 2 power plug sockets for CO2 and ozone dosing. Supplied with 12 volt DC power adapter, MA911B/2 double junction pH electrode and MA921B/2 ORP platinum electrode. See also MA957 regulator. Drop ship. Manufacturer's Product Information 2007 MSRP Each $274.95|http://www.horticulturesource.com/milwaukee-instruments-mi-ph-orp-controller-sms125-p2389/|http://www.horticulturesource.com/images/716785.jpg|219.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Milwaukee Instruments|716790|2390|MI ORP CONTROLLER #SMS510|Orp Controller Model SMS510 SMS 510 ORP CONTROLLER Range: +/- 1000mV, with +/-5 mV accuracy. Set point range 0 to 600 mV, and LED visual alarm active when reading is lower than set point. Power plug socket for ozone dosing. Supplied with 12 volt DC power adapter, MA921B/2 double junction ORP electrode. Drop ship. Manufacturer's Product Information 2007 MSRP Each $149.95 Case Weight1.97 LB Case Dimensions10.25 x 5. x 4.75 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-orp-controller-sms510-p2390/|http://www.horticulturesource.com/images/716790.jpg|119.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Control Wizard|AA105|4194|Indoor Climate Controller (ICC).|CONTROLWIZARD ICC. Thermostat and Humidistat triggers exhaust fans. CO2 shuts off when fans turn on.This advanced control is simple to operate yet does alot to control your indoor environment. Simply plug exhaust fans and co2 equipment into the designated outlets and your ready to go. Co2 will turn off every time your exhaust fan turns on because of humidity or heat exhausting. It uses a sensative coil thermostat and industry standard cellophane humidistat.|http://www.horticulturesource.com/control-wizard-indoor-climate-controller-icc--p4194/|http://www.horticulturesource.com/images/aa105infopic1.jpg|113.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Control Wizard|AA100|4206|Digital Event Timer 2 (DET2 or DET-2).|CONTROLWIZARD DET 2. Unbeatable accuracy. Repeat cycle timer, runs fans, CO2, or pumps etc. 2 STATIONS.Wow! This timer is great. It can time equipment down to 6 seconds of ON time and as little as 1 minute of OFF time. The equipment is timed from staion 1 through station 2. Around and around it times. Plug this unit into your climate controller CO2 outlet to time CO2. When power is shut OFF it resets itself to the beginnig of the ON cycle and starts again. Not for timing lighting systems unless you have a low voltage to high voltage interfacing relay. I could have used this timer about twenty years ago. Why did it take so long. A darn good buy at twice the price!|http://www.horticulturesource.com/control-wizard-digital-event-timer-2-det2-or-det-2--p4206/|http://www.horticulturesource.com/images/aa100infopic1.jpg|144.8280|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Control Wizard|AA120|4207|DET 4.|CONTROL WIZARD DET 4. Unbeatable accuracy. Repeat cycle timer, runs fans, CO2 and pumps etc. 4 STATIONS. Suggested retail price 275.00. Our price while supplies last 159.95. WOW What a great deal!Wow! This timer is great. It almost will run your whole growing area. For example, It can run an exhaust fan, then run a co2 system, then feed plants, then wait for a while and then, do it all over again for as long as you want! It can time equipment down to 6 seconds of ON time and as little as 1 minute of OFF time. The equipment is timed from staion 1 through station 4. Around and around it times. If you don't want equipment to operate in the night, simply plug that stations power cord into an external timer with your custom time for that station. Not for timing lighting systems. I could have used this timer about twenty years ago. Why did it take so long. A darn good buy at twice the price!|http://www.horticulturesource.com/control-wizard-det-4--p4207/|http://www.horticulturesource.com/images/aa120infopic1.jpg|201.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Control Wizard|TI100|4208|Heavy Duty Timer.|Control Wizard Heavy Duty Timer.120-volt dual outlet with ON/OFF switch. The Red ON/OFF switch disengages the timer from the outlets (down position). The outlets will give constant power to equipment when the ON/OFF switch is disengaged or in the OFF/down position. It has 96 ON/OFF settings with an AM/PM dial. Simply push down a tripper for 15 minutes of ON time. Maximum total draw is 15 amps. Made for metal halide/HPS lighting and hydroponic pumps and blowers. The easiest timer I have ever used!Please note that the Red ON/OFF switch disengages the timer from the outlets letting the outlets have constant power just like you plugged into a standard home wall outlet (down position). ON (up position) engages the timer mechanism allowing you to time equipment.|http://www.horticulturesource.com/control-wizard-heavy-duty-timer--p4208/|http://www.horticulturesource.com/images/ti100infopic1.jpg|10.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|TI106|4209|TN311C 24 Hour Timer.|Intermatic TN311C 24 Hour Timer120 volt, 15 amp, 1875 watt, Grounded. Ready to use for lighting .This timer is grounded and should may be used for grounded lighting systems up to 1000 watts.|http://www.horticulturesource.com/intermatic-tn311c-24-hour-timer--p4209/|http://www.horticulturesource.com/images/ti106infopic1.jpg|19.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|TI110|4210|Electronic Plug-In Timer|Features 12 programs (6 on; 6 off) / programming: 1 minute intervals. Built-in battery for reserve carry-over. Easy to program. Manual switch. Grounded 3-conductor plug and receptacle.|http://www.horticulturesource.com/intermatic-electronic-plug-in-timer-p4210/|http://www.horticulturesource.com/images/ti110infopic1-new.jpg|36.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|TI115|4212|T103 24 Hour Timer.|Intermatic T103 24 Hour Timer.120V OR 240V, 40A You wire. For lighting equipment. Runs multiple lighting systems.This timer will run 3 1000 watt lighting systems running on 120 volt or 6 1000 watt lighting systems running on 240 volt or 6 400 watt lighting systems running at 120 volt. Ask for the simplified wiring diagram when ordering. This is a hardwire timer. It is not scary to wire but you should know what your doing. If not, ask a qualified electrician for help.|http://www.horticulturesource.com/intermatic-t103-24-hour-timer--p4212/|http://www.horticulturesource.com/images/ti115infopic1.jpg|79.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||TI135|4213|T103 Timer Replacement Motor.|Intermatic T103 Timer Replacement Motor.Requires disassembly of timer.When your T103 no longer keeps time, this is the replacement motor.|http://www.horticulturesource.com/t103-timer-replacement-motor--p4213/|http://www.horticulturesource.com/images/ti135infopic1.jpg|29.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||TI145|4214|T103 Timer Extra Tripper Set.|Intermatic T103 Timer Extra Tripper Set (1 ON 1 OFF) If you lose your trippers or you want the timer go ON and OFF more often during the day or night you buy these.|http://www.horticulturesource.com/t103-timer-extra-tripper-set--p4214/|http://www.horticulturesource.com/images/ti145infopic1.jpg|6.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||TI205|4215|30a Timer Box.|Sunlight Supply Timer Box. 30amp Max Load. Offers 2-120v outlets and 4-240v outlets.|http://www.horticulturesource.com/30a-timer-box--p4215/|http://www.horticulturesource.com/images/ti205infopic.jpg|290.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||TI206|4216|50a Timer Box.|Sunlight Supply Timer Box. 50amp Max Load. Offers 2-120v outlets and 8-240v outlets.|http://www.horticulturesource.com/50a-timer-box--p4216/|http://www.horticulturesource.com/images/ti206infopic.jpg|412.7800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734049|4464|INTERMATIC POWER STRIP W/ DIGITAL TIMER|Intermatic 8 Outlet Power Strip with TimerEasy to program4 timed outletsSafety covers and heavy duty receptacles2.5 foot ground cordFor indoor use onlyBattery backupOne year manufacturer warrantyThis 8 outlet power strip is unique in that it has a built-in 7 day digital timer. Four of the eight outlets are timed by the digital timer. Great for putting your accessories on a day/night grow cycle. 120 volts at 60 Hz. Max load 15 amps.|http://www.horticulturesource.com/intermatic-intermatic-power-strip-w-digital-timer-p4464/|http://www.horticulturesource.com/images/734049.jpg|20.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Solatel|703617|4639|PWX-240-4 POWER EXPANDER 4 OUTLET|PWX Power ExpandersPWX-240-4 Power Expander lets you control up to four 1000 watt 240 volt lighting systems. Comes pre-wired with 12 gauge 6' power cable and a 6' trigger cord with a 120v plug. The power cable connects to a 240V 20A service. The trigger cord can be connected to any 24 hour timer/controller. The trigger cord turns four outlets on at once.PWX-240-U Power Expander lets you control up to four 1000 watt 240 volt lighting systems. Comes pre-wired with a 10 gauge 6' power cable and a 6' trigger cord with 120V plug. The power cable connects to a 240V 30A service. The trigger cord can be connected to any 24 hour timer/controller. The trigger cord turns on all four 240V outlets at once. PLUS: two 120 volt outlets that are always on with an added 10 amps each. The trigger cord has no effect on the 120V outlets.|http://www.horticulturesource.com/solatel-pwx-240-4-power-expander-4-outlet-p4639/|http://www.horticulturesource.com/images/703617.jpg|152.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Solatel|703618|4640|PWX-240-U POWER EXPANDER 6 OUTLET COMBO|PWX Power ExpandersPWX-240-4 Power Expander lets you control up to four 1000 watt 240 volt lighting systems. Comes pre-wired with 12 gauge 6' power cable and a 6' trigger cord with a 120v plug. The power cable connects to a 240V 20A service. The trigger cord can be connected to any 24 hour timer/controller. The trigger cord turns four outlets on at once.PWX-240-U Power Expander lets you control up to four 1000 watt 240 volt lighting systems. Comes pre-wired with a 10 gauge 6' power cable and a 6' trigger cord with 120V plug. The power cable connects to a 240V 30A service. The trigger cord can be connected to any 24 hour timer/controller. The trigger cord turns on all four 240V outlets at once. PLUS: two 120 volt outlets that are always on with an added 10 amps each. The trigger cord has no effect on the 120V outlets.|http://www.horticulturesource.com/solatel-pwx-240-u-power-expander-6-outlet-combo-p4640/|http://www.horticulturesource.com/images/703618.jpg|178.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|WATTS|702815|4672|Watts 8 Light Command Center|Watts Light Command CenterThe Watts Command Centers are heavy-duty multi-ballast fortresses! This is a must have if you plan to run multiple lighting fixtures. Each unit comes standard with a lighting controller, which will allow you to start the lights with a standard plug-in timer. They are available in 4 or 8 ballast models. The lighting controllers are pre-wired. The ballast kits are purchased separately and are easily wired into the unit. They come with wiring instructions. These mobile ballast housings having many features over conventional ballast enclosures, including:Heavy duty wheels make it very mobile. Easily moved from room to roomQuieter than most single ballast enclosuresTakes less room than running separate enclosuresSun System ready lamp cord receptacleWell vented so heat escapes. Avoids damaging critical componentsPowder coated, heavy gauge steel housing that will ensure years of durable use.The Ready to Grow Ballast Kits 902445 work great with the Watts Command Center. Purchase ballast kits separately.|http://www.horticulturesource.com/watts-watts-8-light-command-center-p4672/|http://www.horticulturesource.com/images/702800.jpg|692.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|ART-DNE|4820|TIMER, ADJUSTABLE RECYCLING, 120VAC, 15-AMP, .1-40 MIN ON, 1 MIN-8 HOURS OFF, DAY/NIGHT/BOTH|Adjustable Recycle Timer (ART-DNE)ADJUSTABLE CYCLE TIMER The ART-DNe recycling timer controls any application requiring a device to be turned on and off at precise intervals. The ART-DNe has a user adjustable on time of 1 second to 60 minutes and an off time of 1 minute to 8 hours. A day/night/both switch allows you to select the time period that the ART-DNe will operate. The ART-DNe timers have a wide range of uses including controlling hydroponic pumps, simple CO2 controller, turning on and off ozone generators, running exhaust fans, etc. ART-DNe timers are rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $84.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-adjustable-recycling-120vac-15-amp-1-40-min-on-1-min-8-hours-off-day-night-both-p4820/|http://www.horticulturesource.com/images/ART-DNe_qtr.JPG|50.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|HLC-2e|4850|HID LIGHTING ELECTRONIC CONTROLLER, DELAY ON TIMER, 15 MINUTE DELAY|C.A.P. 15 Minute On-Delay (HLC-2e)15 MINUTE ON-DELAY The HLC-2e is designed to protect your expensive HID lights from "Hot Starts" A hot start occurs whenever your lights are turned OFF and then back ON before the lamp is allowed to cool off. Hot starts caused by power outages reduce your lamp's life and intensity. When the HLC-2e is connected to your lights, it will sense a power interruption and start a 15 minute time delay to keep the lights from trying to re-fire during the cool down period. The HLC-2e can also be used to delay other devices from starting for 15 minutes when power is applied. The HLC-2e is rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $79.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-hid-lighting-electronic-controller-delay-on-timer-15-minute-delay-p4850/|http://www.horticulturesource.com/images/HLC-2e qtr.JPG|48.8200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|HLC-3e|4851|HID LIGHTING CONTROLLER, ELECTRONIC, HOT START and HI TEMP PROTECTION, 15 MINUTE DELAY, 50-115'F|C.A.P. High Temp Shutdown and On-Delay (HLC-3e)HIGH TEMP SHUTDOWN and 15 MINUTE ON DELAY The HLC-3e HID lighting controller combines the functions of the HLC-1e and HLC-2e to protect your expensive HID lights from hot starts and your garden from high temperatures. A high temperature shutdown provides insurance from crop damage due to high heat from ventilation and cooling problems. When connected to your lights, or light controller, it will monitor your growing area's temperature and disable your lights if the maximum temperature you specify is exceeded. This unit also has an indicator light to let you know that your temperature set point was exceeded. The HLC-3e will also sense a power interruption and start a 15 minute time delay to keep your lights from trying to re-fire during the cool down period. Comes with a 12' remote temperature sensor. The HLC-3e is rated at 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $104.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-hid-lighting-controller-electronic-hot-start-hi-temp-protection-15-minute-delay-50-115-f-p4851/|http://www.horticulturesource.com/images/HLC-3e_qtr.JPG|56.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|HPR-1|4852|HIGH POWER RELAY, 30 AMP @ 120/240VAC, 120VAC TRIGGER|30 amp Relay (HPR-1)HPR-1 The HPR-1 is a hard-wired 30 amp capacity, 240 volt version of the UPM-1. The HPR-1 is perfect for controlling higher loads such as large air conditioners or multiple HID ballasts. You supply 240 volt power to the input side of the HPR-1. The air conditioner or ballasts to be controlled are then hard-wired into the output side of the relay. The 16 foot trigger cable coming from the HPR-1 is then connected to your control device such as a time clock, thermostat or environmental controller. When the device applies power to the trigger cable, the relay in the HPR-1 applies power to the connected equipment. The HPR-1 is rated at 30 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $169.95 Unit Weight3 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-high-power-relay-30-amp-120-240vac-120vac-trigger-p4852/|http://www.horticulturesource.com/images/HPR-1 Front.JPG|115.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16|4855|MASTER LIGHTING CONTROLLER 16 LIGHTS W/CIRCUIT BREAKERS, 240 STYLE OUTLETS|Master Lighting Controller 16 Lights (240 volt, 240 style plug) (MLC-16)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $619.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-16-lights-w-circuit-breakers-240-style-outlets-p4855/|http://www.horticulturesource.com/images/702220.jpg|365.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16a|4856|MASTER LIGHTING CONTROLLER 16 LIGHTS W/CIRCUIT BREAKERS, 120 STYLE OUTLETS|Master Lighting Controller 16 Lights (120/240 volt, 120 style plug) (MLC-16a)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $619.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-16-lights-w-circuit-breakers-120-style-outlets-p4856/|http://www.horticulturesource.com/images/702221.jpg|419.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16D|4857|MASTER LIGHTING CONTROLLER, 16 LIGHTS W/CIRCUIT BREAKERS, 240 STYLE OUTLETS W/DUAL TRIGGER CABLES|Master Lighting Controller 16 Lights, Dual Trigger Cable (240 volt, 240 style plug) (MLC-16 D)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $644.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-16-lights-w-circuit-breakers-240-style-outlets-w-dual-trigger-cables-p4857/|http://www.horticulturesource.com/images/702222.jpg|458.7400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16Da|4858|MASTER LIGHT CONTROLLER, 16 LIGHTS W/CIRCUIT BREAKERS, 120 STYLE OUTLETS, W/ DUAL TRIGGER CABLES|Master Lighting Controller 16 Lights, Dual Trigger Cable (120/240 volt, 120 style plug) . (MLC-16 Da)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $644.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-16-lights-w-circuit-breakers-120-style-outlets-w-dual-trigger-cables-p4858/|http://www.horticulturesource.com/images/702223.jpg|458.7400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-24|4859|MASTER LIGHTING CONTROLLER, 24 LIGHTS W/CIRCUIT BREAKERS, 240 STYLE OUTLETS|Master Lighting Controller 24 Lights (240 volt, 240 style plug) . (MLC-24)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $729.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-24-lights-w-circuit-breakers-240-style-outlets-p4859/|http://www.horticulturesource.com/images/702225.jpg|447.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-24D|4861|MASTER LIGHTING CONTROLLER, 24 LIGHTS W/CIRCUIT BREAKERS, 240 STYLE OUTLETS, W/DUAL TRIGGER CABLES|Master Lighting Controller 24 Lights, Dual Trigger Cable (240 volt, 240 style plug) (MLC-24 D)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $759.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-24-lights-w-circuit-breakers-240-style-outlets-w-dual-trigger-cables-p4861/|http://www.horticulturesource.com/images/MLC_24D_rht_angle.JPG|580.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-24Da|4862|MASTER LIGHTING CONTROLLER, 24 LIGHTS W/CIRCUIT BREAKERS, 120 STYLE OUTLETS, W/DUAL TRIGGER CABLES|Master Lighting Controller 24 Lights , Dual Trigger Cable (120/240 volt, 120 style plug). (MLC-24 Da)MLC-16 and 24 - Master Lighting Controllers The MLC-16 and MLC-24 represent the latest in large scale lighting control. They are the best devices for controlling up to 24 lights from one time-clock or controller. You run either 80 (MLC-16) or 120 (MLC-24) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16 and 24 feature standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a and 24a use 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. The MLC-24 contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts and the MLC-24's are rated for 120 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $759.95 Unit Weight23 Case Dimensions20 7/8 x 18 5/8 x 6|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-24-lights-w-circuit-breakers-120-style-outlets-w-dual-trigger-cables-p4862/|http://www.horticulturesource.com/images/702228.jpg|752.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-4|4863|MASTER LIGHT CONTROLLER, (4) 240VAC STYLE PLUGS, 30 AMP @ 120/240VAC,120VAC TRIGGER|Master Lighting Controller 4 Lights (240 volt, 240 style plug) (MLC-4)MLC-4 and 4A - Master Lighting Controllers The MLC-4 and MLC-4a Master Lighting Controllers are the best devices for controlling up to four 1000 watt HID lights from one time-clock or controller. You run 30 amp, 240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4 has four 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-4a has four 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock. The MLC-4's are rated for 30 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $207.95 Unit Weight4 Case Dimensions10 7/16 x 9 1/4 x 6 5/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-4-240vac-style-plugs-30-amp-120-240vac-120vac-trigger-p4863/|http://www.horticulturesource.com/images/MLC_4_rht_angle.JPG|113.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-4T|4866|MASTER LIGHT CONTROLLER, (4) 240VAC STYLE PLUGS, 30 AMP @ 240VAC, 24 HOUR TIMER|Master Lighting Controller 4 Lights w/Timer (240 volt, 240 style plug) (MLC-4T)MLC-4 and 4A and#8212; Master Lighting Controllers The MLC-4 and MLC-4a Master Lighting Controllers are the best devices for controlling up to four 1000 watt HID lights from one time-clock or controller. You run 30 amp, 240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4 has four 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-4a has four 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock. The MLC-4and#8217;s are rated for 30 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $159.95 Unit Weight4 Case Dimensions10 7/16 x 9 1/4 x 6 5/8|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-4-240vac-style-plugs-30-amp-240vac-24-hour-timer-p4866/|http://www.horticulturesource.com/images/702165.jpg|133.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8|4867|MASTER LIGHT CONTROLLER, (8) 240VAC STYLE PLUGS, 40 AMP @ 120/240VAC,120VAC TRIGGER|Master Lighting Controller 8 Lights (240 volt, 240 style plug) (MLC-8)MLC-8 and 8A and#8212; Master Lighting Controllers The MLC-8 and MLC-8a Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8 has eight 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-8a has eight 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock, as well as dual trigger cables to split 2 series of 4 lights. The MLC-8's are rated for 40 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $239.95 Unit Weight8 Case Dimensions12 x 11 1/8 x 6 15/16|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-8-240vac-style-plugs-40-amp-120-240vac-120vac-trigger-p4867/|http://www.horticulturesource.com/images/MLC_8_rht_angle_.JPG|175.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8aT|4869|MASTER LIGHT CONTROLLER, (8) 120VAC STYLE PLUGS, 40 AMP @ 240VAC, 24 HOUR TIMER|Master Lighting Controller 8 Lights, w/Timer (120/240 volt, 120 style plug) (MLC-8aT)MLC-8 and 8A - Master Lighting Controllers The MLC-8 and MLC-8a Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8 has eight 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-8a has eight 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock, as well as dual trigger cables to split 2 series of 4 lights. The MLC-8's are rated for 40 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $254.95 Unit Weight8 Case Dimensions12 x 11 1/8 x 6 15/16|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-8-120vac-style-plugs-40-amp-240vac-24-hour-timer-p4869/|http://www.horticulturesource.com/images/702178.jpg|206.9750|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8D|4870|MASTER LIGHT CONTROLLER, (8) 240VAC STYLE PLUGS, 40 AMP, 120/240 VAC, 120 VAC "DUAL TRIGGER CABLES"|Master Lighting Controller 8 Lights, Dual Trigger Cable (240 volt, 240 style plug) . (MLC-8 D)MLC-8 and 8A and#8212; Master Lighting Controllers The MLC-8 and MLC-8a Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8 has eight 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-8a has eight 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock, as well as dual trigger cables to split 2 series of 4 lights. The MLC-8's are rated for 40 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $254.95 Unit Weight8 Case Dimensions12 x 11 1/8 x 6 15/16|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-8-240vac-style-plugs-40-amp-120-240-vac-120-vac-dual-trigger-cables--p4870/|http://www.horticulturesource.com/images/702179.jpg|206.9750|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8Da|4871|MASTER LIGHT CONTROLLER, (8) 120VAC STYLE PLUGS, 40 AMP@120/240VAC, 12VAC "DUAL TRIGGER CABLES"|Master Lighting Controller 8 Lights, Dual Trigger Cable (120/240 volt, 120 style plug ) . (MLC-8 Da)MLC-8 and 8A and#8212; Master Lighting Controllers The MLC-8 and MLC-8a Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8 has eight 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-8a has eight 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock, as well as dual trigger cables to split 2 series of 4 lights. The MLC-8's are rated for 40 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $234.95 Unit Weight8 Case Dimensions12 x 11 1/8 x 6 15/16|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-8-120vac-style-plugs-40-amp-120-240vac-12vac-dual-trigger-cables--p4871/|http://www.horticulturesource.com/images/702180.jpg|190.4750|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8T|4872|MASTER LIGHT CONTROLLER, (8) 240VAC STYLE PLUGS, 40 AMP @ 240VAC, 24 HOUR TIMER|Master Lighting Controller 8 Lights, w/Timer (240 volt, 240 style plug) (MLC-8T)MLC-8 and 8A and#8212; Master Lighting Controllers The MLC-8 and MLC-8a Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8 has eight 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-8a has eight 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. An integrated timer option is available which allows you to control your MLC with the built-in time clock, as well as dual trigger cables to split 2 series of 4 lights. The MLC-8's are rated for 40 amps @ 240 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $264.95 Unit Weight8 Case Dimensions12 x 11 1/8 x 6 15/16|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-light-controller-8-240vac-style-plugs-40-amp-240vac-24-hour-timer-p4872/|http://www.horticulturesource.com/images/MLC_8T_rht_angle_.JPG|214.9750|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|NFT-1e|4873|ELECTRONIC TIMER, NON ADJUSTABLE, FACTORY SETTINGS, 1 MIN ON / 4 MIN. OFF|Cycle Timer, 1 minute on/4 minutes off (NFT-1e)PRESET CYCLE TIMER The NFT series of preset recycling timers from C.A.P. are the simplest devices available for turning a device ON and OFF at precise intervals. The NFT-1e Timer is pre-set to turn ON for 1 minute and OFF for 4 minutes. The NFT-2e Timer is preset at 3 minutes ON and 5 minutes OFF. Plug the NFT into any standard outlet. Plug whatever you want to control into the receptacle on the front face and you're done. NFT timers are rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $64.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-electronic-timer-non-adjustable-factory-settings-1-min-on-4-min-off-p4873/|http://www.horticulturesource.com/images/NFT-1e qtr.JPG|71.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|NFT-2e|4874|TIMER, NON ADJUSTABLE ELECTRONIC, FACTORY SETTINGS, 3 MIN ON / 5 MIN. OFF|Cycle Timer, 3 minutes on/5 minutes off (NFT-2e)PRESET CYCLE TIMER The NFT series of preset recycling timers from C.A.P. are the simplest devices available for turning a device ON and OFF at precise intervals. The NFT-1e Timer is pre-set to turn ON for 1 minute and OFF for 4 minutes. The NFT-2e Timer is preset at 3 minutes ON and 5 minutes OFF. Plug the NFT into any standard outlet. Plug whatever you want to control into the receptacle on the front face and you're done. NFT timers are rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $64.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-non-adjustable-electronic-factory-settings-3-min-on-5-min-off-p4874/|http://www.horticulturesource.com/images/NFT-2.gif|49.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|PTC-1|4880|PHOTOCONTROLLER, 120VAC, 10-AMP, ON DURING DAYLIGHT|Day ON Timer (PTC-1)PHOTOCELL CONTROLLERS The PTC series of photo controllers from C.A.P. are perfect when you need to turn something ON only during daylight hours or only at night. A photocell senses whether it is day or night, and turns the device plugged into it ON or OFF depending on which model you are using. The PTC-1 Photo Controller turns ON whatever is plugged into it during the day when the lights are on. The PTC-2 Photo Controller turns ON the device during the night, when the lights are off. PTC(s) are rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $72.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-photocontroller-120vac-10-amp-on-during-daylight-p4880/|http://www.horticulturesource.com/images/PTC-1 qtr.JPG|53.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|PTC-2|4881|PHOTOCONTROLLER, 120VAC, 10-AMP, ON DURING NIGHT|Night ON Timer (PTC-2)PHOTOCELL CONTROLLERS The PTC series of photo controllers from C.A.P. are perfect when you need to turn something ON only during daylight hours or only at night. A photocell senses whether it is day or night, and turns the device plugged into it ON or OFF depending on which model you are using. The PTC-1 Photo Controller turns ON whatever is plugged into it during the day when the lights are on. The PTC-2 Photo Controller turns ON the device during the night, when the lights are off. PTC(s) are rated for 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $72.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-photocontroller-120vac-10-amp-on-during-night-p4881/|http://www.horticulturesource.com/images/PTC-1 qtr.JPG|53.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|UPM-1|4891|UNIVERSAL POWER MODULE, 120VAC, 15-AMP, 120VAC TRIGGER|Power Module (UPM-1)UPM-1 The UPM-1 Universal Power Module is a unique device that can allow the user to run additional HID lights or control multiple fans/air conditioners or other high amperage 120 volt equipment. The UPM-1's plug-box is designed to be plugged into a standard household outlet. The 16 foot trigger cable coming from the UPM-1 is then connected to your control device such as a time clock, thermostat or environmental controller. When the control device applies power to the trigger cable, the relay inside the UPM-1 applies power to the twin outlets on the front of the UPM-1 from the circuit that the UPM-1 is plugged into, not from the controlling devices power. The UPM-1 is rated at 15 amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2007 MSRP Each $89.95 Unit Weight3 Case Dimensions8 x 6 x 4|http://www.horticulturesource.com/c-a-p-custom-automated-products-universal-power-module-120vac-15-amp-120vac-trigger-p4891/|http://www.horticulturesource.com/images/UPM-1_NEW.JPG|48.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-001|5181|TIMER, MECHANICAL, 15 AMP @ 120 VOLT, GROUNDED, GRASSLIN 08190 #T35/16|Grasslin Grounded Timer (case quantity 50 but sold individually) (TMR-001)GRASSLIN HEAVY DUTY TIMERS The Grasslin Heavy Duty Timers are great all around timers. The analog timers have trippers that you pull up to turn the device on. With a 15 minute resolution, the analog timers can be used for CO2 and pump timing applications. They will handle up to 15 amps which makes them great lighting timers. The Grasslin Digital Timer has up to 6 on/off periods per day and a resolution of 1 minute. All have a manual override to allow you to turn them on or off without changing the current timing. Available in 3 versions, grounded, non-grounded and digital. Manufacturer's Product Information 2007 MSRP Each $13.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-15-amp-120-volt-grounded-grasslin-08190-t35-16-p5181/|http://www.horticulturesource.com/images/GRASSGR_timer.JPG|11.2250|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-002|5182|TIMER, MECHANICAL, 15 AMP @ 120 VOLT, NON-GROUNDED, GRASSLIN 08110 # T25/16|Grasslin Non-Grounded Timer (case quantity 50 but sold individually). (TMR-002)GRASSLIN HEAVY DUTY TIMERS The Grasslin Heavy Duty Timers are great all around timers. The analog timers have trippers that you pull up to turn the device on. With a 15 minute resolution, the analog timers can be used for CO2 and pump timing applications. They will handle up to 15 amps which makes them great lighting timers. The Grasslin Digital Timer has up to 6 on/off periods per day and a resolution of 1 minute. All have a manual override to allow you to turn them on or off without changing the current timing. Available in 3 versions, grounded, non-grounded and digital. Manufacturer's Product Information 2007 MSRP Each $11.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-15-amp-120-volt-non-grounded-grasslin-08110-t25-16-p5182/|http://www.horticulturesource.com/images/GRASS_timer.JPG|9.4750|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-003|5183|TIMER, DIGITAL 15 AMP @ 120 VOLT, GROUNDED, GRASSLIN #CP924|Grasslin Digital Timer (case quantity 50 but sold individually) (TMR-003)GRASSLIN HEAVY DUTY TIMERS The Grasslin Heavy Duty Timers are great all around timers. The analog timers have trippers that you pull up to turn the device on. With a 15 minute resolution, the analog timers can be used for CO2 and pump timing applications. They will handle up to 15 amps which makes them great lighting timers. The Grasslin Digital Timer has up to 6 on/off periods per day and a resolution of 1 minute. All have a manual override to allow you to turn them on or off without changing the current timing. Available in 3 versions, grounded, non-grounded and digital. Manufacturer's Product Information 2007 MSRP Each $29.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-digital-15-amp-120-volt-grounded-grasslin-cp924-p5183/|http://www.horticulturesource.com/images/GRASSDI_timer_angle.JPG|24.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-004|5184|TIMER, MECHANICAL, 15 AMP @ 120 VOLT, GROUNDED, INTERMATIC #TN311C|Intermatic 15 amp Grounded Timer (case quantity 12 but sold individually) (TMR-004)INTERMATIC TIMERS The Intermatic 15 amp timers are good for many different applications. They have 6 trippers that you can place for up to 3 on/off times per day. A manual override allows you to turn it on or off without changing the current timing. They have a 30 minute resolution. Rated for up to 15 amps. Great for lighting applications. Available in 2 versions, grounded and non-grounded. Manufacturer's Product Information 2007 MSRP Each $17.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-15-amp-120-volt-grounded-intermatic-tn311c-p5184/|http://www.horticulturesource.com/images/INTN311.JPG|14.2250|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-005|5185|TIMER, MECHANICAL, 15 AMP @ 120 VOLT, NON-GROUNDED, INTERMATIC #TN111C|Intermatic Non-Grounded Timer (case quantity 12 but sold individually) (TMR-005)INTERMATIC TIMERS The Intermatic 15 amp timers are good for many different applications. They have 6 trippers that you can place for up to 3 on/off times per day. A manual override allows you to turn it on or off without changing the current timing. They have a 30 minute resolution. Rated for up to 15 amps. Great for lighting applications. Available in 2 versions, grounded and non-grounded. Manufacturer's Product Information 2007 MSRP Each $12.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-15-amp-120-volt-non-grounded-intermatic-tn111c-p5185/|http://www.horticulturesource.com/images/INTN111.JPG|10.2250|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-007|5187|TIMER, MECHANICAL, HEAVY-DUTY, 20 AMP @ 120 VOLT, GROUNDED, INTERMATIC #HB113C|Intermatic 120v 20 Amp Timer (case quantity 12 but sold individually) (TMR-007)INTERMATIC HEAVY DUTY 120 VOLT TIMER The Intermatic 120 volt timer is very good for lighting, air conditioning or other high amperage devices. It has 4 trippers that you can place for up to 2 on/off times per day. It has a manual override to allow you to turn it on or off without changing the current timing. It has a 30 minute resolution. It will control up to two 1000 watt, three 600 watt or up to four 400 watt lights (120 volt). It has an industry standard 20 amp plug configuration as shown to plug into 120 volt 20 amp outlets. Manufacturer's Product Information 2007 MSRP Each $299.4|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-heavy-duty-20-amp-120-volt-grounded-intermatic-hb113c-p5187/|http://www.horticulturesource.com/images/HB113_Timer.JPG|233.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-008|5188|TIMER, MECHANICAL, HEAVY-DUTY, 20 AMP @ 240 VOLT, GROUNDED, INTERMATIC #HB112C|Intermatic HB112C 240v Timer (case quantity 12 but sold individually) (TMR-008)INTERMATIC HEAVY DUTY 240 VOLT TIMER The Intermatic Heavy Duty HB-112 240 volt 15 amp timer is very good for lighting, air conditioning or other high amperage devices. It has 4 trippers that you can place for up to 2 on/off times per day and a manual override to allow you to turn it on or off without changing the current timing. It has a 30 minute resolution. The HB-112 will control up to three 1000 watt lights. It has an industry standard NEMA 6-15 plug configuration. All of our Sunlight Supply lights have this plug available for the 240 volt lighting. Manufacturer's Product Information 2007 MSRP Each $299.4|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-mechanical-heavy-duty-20-amp-240-volt-grounded-intermatic-hb112c-p5188/|http://www.horticulturesource.com/images/HB112_Timer.JPG|233.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|NFT-2|5689|TIMER, NON ADJUSTABLE, FACTORY SETTINGS, 3 MIN ON / 5 MIN. OFF|Cycle Timer, 3 minutes on/5 minutes off (NFT-2)PRESET CYCLE TIMERThe NFT series of preset recycling timers fromC.A.P. are the simplest devices available forturning a device ON and OFF at preciseintervals. The NFT-1e Timer is pre-set to turnON for 1 minute and OFF for 4 minutes.The NFT-2e Timer is preset at 3 minutes ONand 5 minutes OFF. Plug the NFT into anystandard outlet. Plug whatever you want tocontrol into the receptacle on the front faceand you're done. NFT timers are rated for 15amps @ 120 volts. 3 year no hassle warranty. Manufacturer's Product Information 2008 MSRP $64.95 Unit Weight1 Case Dimensions5 x 5 x 3|http://www.horticulturesource.com/c-a-p-custom-automated-products-timer-non-adjustable-factory-settings-3-min-on-5-min-off-p5689/|http://www.horticulturesource.com/images/NFT-1e qtr.JPG|49.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-4X|6030|CAP MLC-4X Master Lighting Controller 4 Lights|C.A.P. 4 Light Master Lighting ControllerMLC-4X and 4XTThe MLC-4X and MLC-4XT Master Lighting Controllers are the best devices for controlling up to four HID lights from one time-clock or controller. You run 30 amp, 120/240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4X and MLC-4XT has four 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-4XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-4Xand#8217;s are rated for 30 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $149.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-4x-master-lighting-controller-4-lights-p6030/|http://www.horticulturesource.com/images/MLC-4X.jpg|83.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-4XT|6031|CAP MLC-4XT Master Lighting Controller 4 Lights w/ Timer|C.A.P. 4 Light Master Lighting ControllerMLC-4X and 4XTThe MLC-4X and MLC-4XT Master Lighting Controllers are the best devices for controlling up to four HID lights from one time-clock or controller. You run 30 amp, 120/240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4X and MLC-4XT has four 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-4XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-4Xand#8217;s are rated for 30 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $174.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-4xt-master-lighting-controller-4-lights-w-timer-p6031/|http://www.horticulturesource.com/images/MLC-4XT.jpg|96.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8X|6032|CAP MLC-8X Master Lighting Controller 8 Lights|C.A.P. 8 Light Master Lighting ControllerMLC-8X, 8XT, and 8DXThe MLC-8X, MLC-8XT, and MLC-8DX Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8X, MLC-8XT, and MLC-8DX have eight 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-8XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-8DX has dual trigger cables to split 2 series of 4 lights. The MLC-8X's are rated for 40 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $219.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-8x-master-lighting-controller-8-lights-p6032/|http://www.horticulturesource.com/images/MLC-8X.jpg|127.1200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8XT|6033|CAP MLC-8XT Master Lighting Controller 8 Lights w/ Timer|C.A.P. 8 Light Master Lighting ControllerMLC-8X, 8XT, and 8DXThe MLC-8X, MLC-8XT, and MLC-8DX Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8X, MLC-8XT, and MLC-8DX have eight 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-8XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-8DX has dual trigger cables to split 2 series of 4 lights. The MLC-8X's are rated for 40 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $254.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-8xt-master-lighting-controller-8-lights-w-timer-p6033/|http://www.horticulturesource.com/images/MLC-8XT.jpg|142.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-8DX|6034|CAP MLC-8DX Master Lighting Controller 8 Lights, Dual Trigger|C.A.P. 8 Light Master Lighting ControllerMLC-8X, 8XT, and 8DXThe MLC-8X, MLC-8XT, and MLC-8DX Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8X, MLC-8XT, and MLC-8DX have eight 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-8XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-8DX has dual trigger cables to split 2 series of 4 lights. The MLC-8X's are rated for 40 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $234.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-8dx-master-lighting-controller-8-lights-dual-trigger-p6034/|http://www.horticulturesource.com/images/MLC-8DX.jpg|135.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16X|6035|CAP MLC-16X Master Lighting Controller 16 Lights|C.A.P. 16 Light Master Lighting ControllerMLC-16X and 16DX The MLC-16X represent the latest in large scale lighting control. It is the best devices for controlling up to 16 lights from one time-clock or controller. You run 80 (MLC-16X) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16X feature a 120/240 volt style outlets, which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-16X contains 4 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16Xand#8217;s are rated for 80 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $619.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-16x-master-lighting-controller-16-lights-p6035/|http://www.horticulturesource.com/images/MLC-16X.jpg|364.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-16DX|6036|CAP MLC-16DX Master Lighting Controller 16 Lights, Dual Trigger|C.A.P. 16 Light Master Lighting ControllerMLC-16X and 16DX The MLC-16X represent the latest in large scale lighting control. It is the best devices for controlling up to 16 lights from one time-clock or controller. You run 80 (MLC-16X) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16X feature a 120/240 volt style outlets, which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-16X contains 4 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16Xand#8217;s are rated for 80 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $644.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-16dx-master-lighting-controller-16-lights-dual-trigger-p6036/|http://www.horticulturesource.com/images/MLC-16DX.jpg|381.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-24X|6037|CAP MLC-24X Master Lighting Controller 24 Lights|C.A.P. 24 Light Master Lighting ControllerMLC-24X and 24DXThe MLC-24X represent the latest in large scale lighting control. It is the best devices for controlling up to 24 lights from one time-clock or controller. You run 120 (MLC-24X) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-24X feature a 120/240 volt style outlets, which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-24X contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24Xand#8217;s are rated for 120 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $729.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-24x-master-lighting-controller-24-lights-p6037/|http://www.horticulturesource.com/images/MLC-24X.jpg|424.7100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-24DX|6038|CAP MLC-24DX Master Lighting Controller 24 Lights, Dual Trigger MLC-24DX Master Lighting Controller 24 Lights, Dual Trigger|C.A.P. 24 Light Master Lighting ControllerMLC-24X and 24DXThe MLC-24X represent the latest in large scale lighting control. It is the best devices for controlling up to 24 lights from one time-clock or controller. You run 120 (MLC-24X) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-24X feature a 120/240 volt style outlets, which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-24X contains 6 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24Xand#8217;s are rated for 120 amps @ 120/240 volts.3 year no hassle warranty.MSRP: $759.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-mlc-24dx-master-lighting-controller-24-lights-dual-trigger-mlc-24dx-master-lighting-controller-24-lights-dual-trigger-p6038/|http://www.horticulturesource.com/images/MLC-24DX.jpg|457.6100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702635|6474|TITAN APOLLO 3 FIXED CYCLE TIMER|Titan Apollo 3 Fixed Cycle Timer1 minute and#8216;on-timeand#8217; andamp; 4 minute and#8216;off-timeand#8217;.Timing is preset and#8211; requires no user adjustments.Ideal for aeroponic, ebb andamp; flow or misting applications.Excellent for NFT and#8211; Nutrient Film Technique systems.Plastic enclosure protects internal components from dust and moisture.10 amp maximum.MSRP: $72.95|http://www.horticulturesource.com/titan-controls-titan-apollo-3-fixed-cycle-timer-p6474/|http://www.horticulturesource.com/images/702635.jpeg|49.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734135|7290|TITAN CONTROLS APOLLO 4 - 120 VOLT IN-LINE TIMER|TITAN CONTROLS APOLLO 4 - 120 VOLT IN-LINE TIMER This product provides 24 hour lighting control for up to a 1000 watt ballast from a 120 Volt outlet. The Apollo 4 is compatible with all 120 volt ballasts that feature a Smart Volt power cord. This includes: Sun System 1, 6 and 10, Harvest Pro, Harvest Pro Elite, Budget Gro, Galaxy and Lumatek ballasts. This timer makes lighting control simple! Only the highest quality components are used. Controllers designed by our industry, for our industry. 15 Amps/120 Volts/60 Hz. 3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-4-120-volt-in-line-timer-p7290/|http://www.horticulturesource.com/images/734135.jpg|53.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734140|7291|TITAN CONTROLS APOLLO 5 - 240 VOLT IN-LINE TIMER|Titan Controls Apollo 5 - 240 Volt Ballast TimerThe Apollo 5 is specifically designed for use with today's high in-rush lighting ballasts. This is achieved by installing a 'ballast rated' relay vs. the standard mechanical switch that is used in conventional 24 hour appliance timers. It features a precision German built 24 hour clock, quality enclosure and timer cover that resists dust and moisture. Assure the success of your plants by having the best lighting control in the market today. Dependability is critical in a lighting timer and failure is not an option!. So use the right tool for the right jobůthe Apollo 5. 10 Amp maximum/240 Volts/60 Hz./1000 Watts.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-5-240-volt-in-line-timer-p7291/|http://www.horticulturesource.com/images/734140-n.jpg|57.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702690|7293|TITAN CONTROLS HADES 1 - 15 MINUTE DELAY TIMER|TITAN CONTROLS HADES 1 - 15 MINUTE DELAY TIMERThis product provides protection for your lights should your power go out. It's a low cost security system for your lamps that give you the peace of mind you're looking for with your lighting system. The Hades 1 is easy to use. Just plug the 120 Volt relay trigger cord into the controller and you're protected. This timer makes lighting control safe and simple! Protects your lights from "Hot Starts" due to power failure. Pre-set 15 minute delay. No adjustments required. Chassis protects controller from moisture and dust. Only the highest quality components are used. Controllers designed by our industry, for our industry. 15 Amps/120 Volts/60 Hz. 3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-hades-1-15-minute-delay-timer-p7293/|http://www.horticulturesource.com/images/702690.jpg|52.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-009|7326|24 Hr Analog Timer 120v (12/Case)|24 Hr Analog Timer 120v (TMR-009)C.A.P. VALULINE 24 HOURANALOG TIMERThe ValuLine 24 hour Analog Timer from C.A.P.has a minimum of 15 minutes on and a maximumof 24 hours off. Has 2 timed receptacles anda convenient on/off indicator light. The unit isgrounded and rated for 15 amps at 120 volts.Good for lighting, air conditioning or other highamperage devices. Manufacturer's Product Information 2009 MSRP $15.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-24-hr-analog-timer-120v-12-case--p7326/|http://www.horticulturesource.com/images/TMR-009 VALULINE24HRANALOG.jpg|11.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-010|7327|CAP Valuline Weekly Digital Timer 120v|C.A.P. Valuline Digital TimerFor gardeners that have exact timing requirements, we carry the Valuline Weekly Digital Timer. The ValuLine Weekly Digital Timer from C.A.P. will time up to 8 on/off settings per day and is accurate to the minute. The timer has a digital clock and LCD readout. The unit has a minimum on time of 1 min and a maximum off time of 7 days. Has 2 timed receptacles and a convenient on/off indicator light. The unit is grounded and rated for 15 amps at 120 volts. Comes with a rechargeable Ni-MH Battery. Manufacturer's Product Information MSRP $18.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-cap-valuline-weekly-digital-timer-120v-p7327/|http://www.horticulturesource.com/images/TMR-010 VALULINEWEEKLYDIGITAL.jpg|16.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|TMR-006|7662|Intermatic Digital Timer (Case-8)|Intermatic Digital Timer (TMR-006)INTERMATIC DIGITAL TIMERFor gardeners that have exact timing requirements,we carry the Intermatic Digital Timer. It will time upto 28 on/off settings per day. Accurate to the minute.The timer has a digital clock and LCD readout. Autoadjusts to sunrise/sunset time for dusk/dawn setting.Has 2 timed receptacles and a convenient on/off indicator light. It is rated for 15 amps at 125volts. Not for use with H.I.D. Lights. Manufacturer's Product Information 2008 MSRP $29.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-intermatic-digital-timer-case-8--p7662/|http://www.horticulturesource.com/images/TMR-006 INTERMATICDIGITAL.jpg|22.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734046|8788|INTERMATIC DT620 2 OUTLET DIGITAL TIMER|INTERMATIC DT620 2 OUTLET DIGITAL TIMER (734046)Intermatic Multi-Purpose Outlet Digital TimerTurns lights and appliances on and off automatically.Auto adjusts to sunrise/sunset time for dusk/dawn setting.Automatic Daylight Saving Time option.Variable ON/OFF setting option for added security.Control lamps, appliances, electronics, heaters, air conditioners.Up to 28 ON/OFF settings.Sunrise, sunset, daily, weekday, weekend options.Battery backup with low battery indicator.Convenient on/off indicator light.Easy set up and operation.Large easy to read display.Displays current date and time.2 timed receptacles.Grounded plug and receptacles.Electrical Ratings: 15 Amps, 1800 Watts Inductive, 500 Watts Tungsten, 125 Volts AC, 60 Hz, 1/3 HP. Manufacturer's Product Information MSRP $29.95|http://www.horticulturesource.com/intermatic-intermatic-dt620-2-outlet-digital-timer-p8788/|http://www.horticulturesource.com/images/734046.jpeg|26.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734112|8819|TITAN CONTROLS APOLLO 7 24 HOUR DIGITAL TIMER WITH 15 MINUTE INTERVALS (10/CASE)|Titan Controls Apollo 7The Apollo 7 - 24 hour digital timer is the perfect timing solution for your hydro systems.andnbsp; With a 15 amp capacity, it's easy to set to run your lights, pumps, fans, etc. The Apollo 7 may be set to 1 minute intervals and run 8 separate schedules per day. The Apollo 7 can be configured in numerous timing schedules to meet the most demanding timing requirements.One (1) outlet.1 minute intervals.Battery back-up feature saves settings in case of power failure.Heavy duty construction.Easy to use andamp; simple to operate.Plastic enclosure resists dust and moisture.Only the highest quality components are used.Runs lights, pumps, fans, etc.15 Amps/120 Volts/60 Hz./1800 Watts.1 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-7-24-hour-digital-timer-with-15-minute-intervals-10-case--p8819/|http://www.horticulturesource.com/images/734112.jpeg|10.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734145|8820|TITAN CONTROLS APOLLO 10 24 HOUR ANALOG TIMER - 240 VOLT (10/CASE)|Titan Controls Apollo 10The Apollo 10 - 240Volt/24 hour programmable timer is the perfect timing solution for your hydroponic systems.andnbsp; With a 10 amp capacity, it's easy to set to run your lights, pumps, fans, etc.andnbsp; The Apollo 10 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules for any timing configuration that the grower may require.andnbsp; Flexible, dependable and easy to use!One (1) outlet.15 minute intervals.Heavy duty construction.Easy to use andamp; simple to operate.Plastic enclosure resists dust and moisture.Only the highest quality components are used.Runs lights, pumps, fans, etc.10 Amps/240 Volts/60 Hz/2400 Watts.1 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-10-24-hour-analog-timer-240-volt-10-case--p8820/|http://www.horticulturesource.com/images/734145.jpeg|9.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734110|8821|TITAN CONTROLS APOLLO 6 24 HOUR ANALOG TIMER WITH 15 MINUTE INTERVALS (10/CASE)|Titan Controls Apollo 6The Apollo 6 - 24 hour programmable timer is the perfect timing solution for your hydro systems. With a 15 amp capacity, it's easy to set to run your lights, pumps, fans, etc. The Apollo 6 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements.15 minute intervals.Heavy duty construction.Easy to use andamp; simple to operate.Plastic enclosure resists dust and moisture.Runs lights, pumps, fans, etc.15 Amps/120 Volts/60 Hz./1800 Watts.1 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-6-24-hour-analog-timer-with-15-minute-intervals-10-case--p8821/|http://www.horticulturesource.com/images/734110.jpeg|6.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702740|8835|TITAN CONTROLS APOLLO 2 - DAY and NIGHT PERIODIC CYCLE TIMER W/ PHOTOCELL|Titan Controls Apollo 2 Cycle Timer W/ Photocell10 seconds to 20 minutes 'ON TIME'.1 minute to 12 hours 'OFF TIME'.Controls timed equipment during daytime only, nighttime only or both.Plastic enclosure protects internal components from dust and moisture.Use to time fans, pumps or CO2.15 Amps/120 Volts/60 Hz./1/3 HP.3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-2-day-night-periodic-cycle-timer-w-photocell-p8835/|http://www.horticulturesource.com/images/702740.jpeg|59.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702677|8839|TITAN CONTROLS HELIOS 8 - 8 LIGHT 240 V CONTROLLER W/RELAY TRIGGER CORD SET|Titan Controls Helios 8 - 8 Light 240V Controller W/Dual Trigger CordsThis controller will run eight (8) HID lights at 240 Volts.Features premium quality Seimens brand relays.Step by step instructions are easy to follow andamp; make installation easy.Dual trigger cord sets allow the operator to run two separate light timing schedules.3 screws in back panel make controller easy to wire into your power system.Multi-tap universal outlets will take a 120 Volt or 240 Volt ballast cord set.Durable 20 gauge powder coated steel chassis.Controllers created by our industry, for our industry!50 Amps/240 Volts/60 Hz/8000 Watts.3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-helios-8-8-light-240-v-controller-w-relay-trigger-cord-set-p8839/|http://www.horticulturesource.com/images/702677.jpeg|181.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702676|8840|TITAN CONTROLS HELIOS 7 - 8 LIGHT 240 V CONTROLLER W/RELAY TRIGGER CORD SET|Titan Controls Helios 7 - 8 Light 240V ControllerThis controller will run eight (8) HID lights at 240 Volts.Features premium quality Seimens brand relays.Step by step instructions easy to follow andamp; make installation easy.German built 24 hour timer with 15 minute non-detachable setting tabs.3 screws in back panel make controller easy to wire into your power system.Multi-tap universal outlets will take a 120 Volt or 240 Volt ballast cord set.Durable 20 gauge powder coated steel chassis.Controllers created by our industry,andnbsp; for our industry!50 Amps/240 Volts/60 Hz/8000 Watts.3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-helios-7-8-light-240-v-controller-w-relay-trigger-cord-set-p8840/|http://www.horticulturesource.com/images/702676.jpeg|197.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702745|8841|Titan Controls Apollo 12 - Short Cycle Timer w/ Photocell|Titan Controls Apollo 12 Cycle Timer Short Cycle Timer5 seconds to 30 minutes 'ON TIME' .5 seconds to 60 minutes 'OFF TIME'.Precise short cycle timing of fans, pumps or CO2.Controls timed equipment during daytime only, nighttime only or both.Plastic enclosure protects internal components from dust and moisture.15 Amps/120 Volts/60 Hz./1/3 HP.3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-12-short-cycle-timer-w-photocell-p8841/|http://www.horticulturesource.com/images/702745.jpeg|59.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-12XP4|9212|Master Lighting Controller 12XP4|Lighting Controller (MLC-12XP4)C.A.P. 12 Light Master Lighting ControllerMLC-12X + 4 The best choice for moderate to large scale gardens, the MLC 12 and 20 light controllers represent the latest in large scale lighting control. These devices are capable of controlling up to 12 or 20 lights from a single trigger cord. Simply plug the trigger cable into a 24-hour timer or control device, set your interval and you're done. The MLC-12XP4 and 20XP4 feature Universal X-Plug outlets, which allows for running your ballasts at 120/240 volt without having to change out your power cords. They also feature 4 constantly "on" auxillary outlets to control your 120 volt equipment. Each bank of 4 lights is protected by a 30 amp circuit breaker and all auxillary outlets are protected by a 15 amp circuit breaker. 5 year no hassle warranty. Manufacturer's Product Information 2010 MSRP $619.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-12xp4-p9212/|http://www.horticulturesource.com/images/MLC-12xP4.png|391.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|C.A.P. Custom Automated Products|MLC-20XP4|9213|Master Lighting Controller 20XP4|Lighting Controller (MLC-20XP4)C.A.P. 20 Light Master Lighting ControllerMLC-20X + 4The best choice for moderate to large scale gardens, the MLC 12 and 20 light controllers represent the latest in large scale lighting control. These devices are capable of controlling up to 12 or 20 lights from a single trigger cord. Simply plug the trigger cable into a 24-hour timer or control device, set your interval and you're done. The MLC-12XP4 and 20XP4 feature Universal X-Plug outlets, which allows for running your ballasts at 120/240 volt without having to change out your power cords. They also feature 4 constantly "on" auxillary outlets to control your 120 volt equipment. Each bank of 4 lights is protected by a 30 amp circuit breaker and all auxillary outlets are protected by a 15 amp circuit breaker. 5 year no hassle warranty. Manufacturer's Product Information 2010 MSRP $729.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-master-lighting-controller-20xp4-p9213/|http://www.horticulturesource.com/images/MLC20X4_600.jpg|544.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|TI109|9506|The Apollo 9 - digital dual outlet timer|The Apollo 9 - digital dual outlet timer is a great solution for your timing requirements. It's easy to use and simple to operate. Just set the Apollo 9 for your specific timing needs and run up to two devices with exacting accuracy. Runs lights, pumps, fans, CO2 generators, light movers, oznone generators, etc.Two (2) outlets to run your gear (Do not exceed rated amperage)One (1) minute intervals - 8 separate schedules per dayBattery back-up feature saves timer settings in case of power failureUnderwriter Labs (UL) listed in United States and CanadaPlastic enclosure resists dust and moisture15 Amps/120 Volts/60 Hz./1800 Watts1 year warranty HINT: If the timer is not functioning properly, plug in for five (5) minutes and press the reset (R) button. This generally fixes any problem.|http://www.horticulturesource.com/titan-controls-the-apollo-9-digital-dual-outlet-timer-p9506/|http://www.horticulturesource.com/images/ti109infopic1.jpg|16.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702671|9589|Helios 5|Helios 5The US and Canadian ETL listed Helios 5 controls four(4) 240 Volt ballasts for a maximum 4000 watts of HID lighting over your garden. It features a 15 foot relay trigger cordset that plugs into a 120 volt wall timer that can be configured in a variety of timing patterns and accomodate any gardens requirments. Three(3) screws under the back panel cover make this timer easy to wire into your power system. The lighting controller has a convenient 'ON/OFF' switch that makes lamp cleaning and replacement easy. The Helios 5 has the quality, features and functionality you've been looking for in a HID lighting timer!The Helios 5andnbsp;will run four (4) HID lightsat 240 Volts - Maximum 4000 WattsETL listed (US andamp; Canada) for use incommercial applications120 Voltandnbsp;timed outlet (Max 2 amps) to activate in-linefans to cool your lamps OR run light moversPlug 15 foot relay trigger cord set into 24 hour walltimer3 screws in back panel makes timer easy to wire into your powersystemOn/Off switch that makes lamp cleaning and replacementeasyFeatures premium quality Siemens brand relayETL/UL listed NEMA 6-15 power outletsDurable 20 gauge powder coated steel chassis240 Volts/ 20 Amps/60 Hz/4000 Watts3 year warranty|http://www.horticulturesource.com/titan-controls-helios-5-p9589/|http://www.horticulturesource.com/images/702671.jpg|146.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702765|9590|Hercules 1|Hercules 1The Hercules 1 is a 'trigger' operated, high amperage controller. This ETL lsited device allows you to operate up to 30 amps of lights, heating or air conditioning by hooking up 120 volt or 240 volt power through the 'Power Input' side and connecting your lights, heater or A/C to the 'Power Output' side. The appliances can then be activated by a 120 Volt - 15 foot 'trigger cord set' via an environmental controller, timer or other such device. This product incorporates a heavy duty Siemens relay for dependability and quality. Titan Controls continues to create products developed by the industry for our industry! The Hercules 1 features a 30 Amp Siemenscontactor relay!Use with Titan Controls environmental controllers andtimersCan be wired for 120 Volt OR 240 VoltapplicationsDurable 20 gauge powder coated steel chassisETL listed for commercialapplications30 Amps/120 Volt OR 240 Volt/60 Hz.3 year warranty|http://www.horticulturesource.com/titan-controls-hercules-1-p9590/|http://www.horticulturesource.com/images/702765.jpg|117.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702770|9591|Hercules 2|Hercules 2The Hercules 2 is a 'trigger' operated, high amperage controller. This ETL lsited device allows you to operate up to 50 amps of lights, heating or air conditioning by hooking up 120 volt or 240 volt power through the 'Power Input' side and connecting your lights, heater or A/C to the 'Power Output' side. The appliances can then be activated by a 120 Volt - 15 foot 'trigger cord set' via an environmental controller, timer or other such device. This product incorporates a heavy duty Siemens relay for dependability and quality. Titan Controls continues to create products developed by the industry for our industry! The Herculesandnbsp;2 features a 50 Amp Siemenscontactor relay!Use with Titan Controls environmental controllers andtimersCan be wired for 120 Volt OR 240 VoltapplicationsDurable 20 gauge powder coated steel chassisETL listed for commercialapplications50 Amps/120 Volt OR 240 Volt/60 Hz.3 year warranty|http://www.horticulturesource.com/titan-controls-hercules-2-p9591/|http://www.horticulturesource.com/images/702770.jpg|131.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734155|9712|Titan Controls Apollo 11 - 240 Volt Digital Timer (10/Cs)|One (1) outlet. 1 minute intervals and run up to 20 schedules per day. Battery back-up feature saves settings in case of power failure. Heavy duty construction. Daylight savings mode to accommodate time change. Enclosure resists dust, rust and moisture. Runs lights, pumps, fans, etc. 10 Amps maximum/240 Volts/60 Hz.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-11-240-volt-digital-timer-10-cs--p9712/|http://www.horticulturesource.com/images/734155.jpg|12.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734150|9713|Titan Controls Apollo 14 Timer Surge Protector|Titan Controls Apollo 14 Timer Surge Protector (734150)Titan Controls Apollo 148 Outlets - 4 timed/4 constant. 24 hour programmable timer with 15 minute intervals. Heavy duty construction. All outlets surge protected up to 1000 joules. Circuit breaker switch for safety. 5 foot power cord set. ETL listed timer. 15 Amps/120 Volts/60 Hz. 1 year warranty. Manufacturer's Product Information MSRP $23.95|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-14-timer-surge-protector-p9713/|http://www.horticulturesource.com/images/734150.jpg|16.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702678|9714|Titan Controls Helios 9|Titan Controls Helios 9 (702678)Titan Controls Helios 9This controller will run four(4) HID lights at 240 volts. Features premium quality Siemens brand relay. 30 Amp breakers built right into the controller! Plug relay trigger cord into 24/hr wall timer (included!) Durable powder coated steel chassis. 120 Volt timed accessory outlet (Max 2 amps) for light mover or fan. Attached power cord makes timer easy to connect to your power system. Multi-tap universal outlets will take a 120 or 240 Volt ballast cord set. 30 Amps/240 Volts/60 Hz/4000 Watts. 3 year warranty. Manufacturer's Product Information MSRP $265.95|http://www.horticulturesource.com/titan-controls-titan-controls-helios-9-p9714/|http://www.horticulturesource.com/images/702678.jpg|203.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702679|9715|Titan Controls Helios 10|Titan Controls Helios 10 (702679)Titan Controls Helios 10This controller will run eight(8) HID lights at 240 volts. Features premium quality Siemens brand relay. 50 Amp breakers built right into the controller! Plug relay trigger cord into 24/hr wall timer (included!) Durable powder coated steel chassis. 120 Volt timed accessory outlet (Max 2 amps) for light mover or fan. Attached power cord makes timer easy to connect to your power system. Multi-tap universal outlets will take a 120 or 240 Volt ballast cord set. 50 Amps/240 Volts/60 Hz/8000 Watts. 3 year warranty. Manufacturer's Product Information MSRP $374.95|http://www.horticulturesource.com/titan-controls-titan-controls-helios-10-p9715/|http://www.horticulturesource.com/images/702679.jpg|270.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Intermatic|734037|9847|Intermatic GM40 Timer 40 Amp Multi-Voltage: 120, 208/240, or 277 VAC|Intermatic GM40 TimerThe only electromechanical general purpose time switch withmulti-voltage selection, 40 AMP rating, SPDT and DPDT contacts, and anindoor/outdoor NEMA 3R enclosure. 40 Amp Rating Multi-Voltage: 120, 208/240, or 277 VAC SPDT and DPDT ALL-IN-ONE! NEMA 3R Outdoor Enclosure is Standard Power and Status LED Indicators Real-Time Clock Face Ground Lug and moreůMSRP: $99.95|http://www.horticulturesource.com/intermatic-intermatic-gm40-timer-40-amp-multi-voltage-120-208-240-or-277-vac-p9847/|http://www.horticulturesource.com/images/734037.jpg|69.4400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703674|10920|HORTICONTROL LF-2 BALLAST FLIP FLOP|Horti-Control LF 2 BallastThe LF-2 has two inputs for ballasts and four outputs for lamps. The trigger cable is connected to a 120 Volt/AC appliance timer ghting controller. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-2-ballast-flip-flop-p10920/|http://www.horticulturesource.com/images/703674.png|213.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703676|10921|HORTICONTROL LF-4 BALLAST FLIP FLOP|Horti-Control LF 4 BallastThe LF-4 is a plug and play flip box that has four inputs for ballasts and eight outputs for lamps. The trigger cable is connected to a 120 Volt/AC appliance timer ghting controller. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-4-ballast-flip-flop-p10921/|http://www.horticulturesource.com/images/703676.png|378.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703678|10922|HORTICONTROL LF-6 BALLAST FLIP FLOP|Horti-Control LF 6 BallastThe Horti-Control LF 6 Ballast has six inputs for ballasts and twelve outputs for lamps. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-6-ballast-flip-flop-p10922/|http://www.horticulturesource.com/images/703678.png|427.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703680|10923|HORTICONTROL LF-8 BALLAST FLIP FLOP|Horti-Control LF 8 BallastThe LF-8 has eight inputs for ballasts and sixteen outputs for lamps. The trigger cable is connected to a 120 Volt/AC appliance timer ghting controller. Allows use of 2 or 4 lamps on one ballast. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-8-ballast-flip-flop-p10923/|http://www.horticulturesource.com/images/703680.png|570.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703682|10924|HORTICONTROL LF-10 BALLAST FLIP FLOP|Horti-Control LF 10 BallastThe LF-10 has ten inputs for ballasts and twenty outputs for lamps. The trigger cable is connected to a 120 Volt/AC appliance timer ghting controller. Expand your growing area without increasing power requirements. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-10-ballast-flip-flop-p10924/|http://www.horticulturesource.com/images/703682.png|672.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|703684|10925|HORTICONTROL LF-20 BALLAST FLIP FLOP|Horti-Control LF 20 BallastThe LF-20 has twenty inputs for ballasts and forty outputs for lamps. It features dual trigger cables. One cable per ten ballasts/twenty bulbs. The trigger cables are connected to a 120 Volt/AC appliance timer ghting controller. 15' piggyback trigger cable allows daisy chaining additional controllers. Plug and play with most popular lighting systems. Works with magnetic and digital core ballasts. 5 year warranty.|http://www.horticulturesource.com/horti-control-horticontrol-lf-20-ballast-flip-flop-p10925/|http://www.horticulturesource.com/images/703684.png|1517.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734160|10932|APOLLO 15|Titan Controls Apollo 155 seconds to 60 minutes 'ON TIME' - Both day andamp; night schedule.1 minute to 12 hours 'OFF TIME" - Both day andamp; night schedule.Precise digital timing of fans, pumps and CO2.Bar graph display shows time remaining in schedule.1 year warranty.|http://www.horticulturesource.com/titan-controls-apollo-15-p10932/|http://www.horticulturesource.com/images/734160.png|97.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702915|11025|Powerbox DPC-4000-240V-4P|Powerbox DPC-4000-240V-4PThe DPC-4000-240V is a versatile 240 Volt lighting controller that caneffortlessly run up to four 1,000 watt lights. This model connects to a 3or 4-wire 240 Volt service, and in many cases, you can plug right intoan existing dryer-type outlet to be up and running in minutes.Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-dpc-4000-240v-4p-p11025/|http://www.horticulturesource.com/images/702915.png|188.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702990|11026|Powerbox LSM-16 Flipbox|Powerbox LSM-16 Flipbox The FLIPBOX LSM-16 is 8 ballast, 16 light FLIPBOX that allows you torun 16 lights from 8 ballasts. Convenient single unit with built-intimer allows for complete automation of switching between 16 lights from8 ballasts. Voltage independent - works with 120 Volt and 240 Voltballasts. Fits Sunlight Supply style ballasts. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by your own timer, or other devices. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-lsm-16-flipbox-p11026/|http://www.horticulturesource.com/images/702990.png|658.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702995|11027|Powerbox LSM-20 Flipbox|Powerbox LSM-20 FlipboxThe FLIPBOX LSM-20 is 10 ballast, 20 light FLIPBOX that allows you torun 20 lights from 10 ballasts. Paired with a DPC-15000, and 10electronic ballasts, you can run 20 lights from just 50 Amps at 240Volts. Convenient single unit with built-in timer allows for completeautomation of switching between 20 lights from 10 ballasts. Voltage independent - works with 120 Volt and 240 Volt ballasts. Fits Sunlight Supply style ballasts. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by your own timer, or other devices. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-lsm-20-flipbox-p11027/|http://www.horticulturesource.com/images/702995.png|768.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702940|11028|Powerbox DPC-12000-50A-4P (Plug and Play)|Powerbox DPC-12000A workhorse for the serious gardener, the DPC-12000 can run up to ten1000 Watt lights, plus 120 Volt accessories - safely and reliably. TheDPC-12000 is the best choice for mid-scale growers on a budget.Hand-built at their California factory, 5 year warranty. Built-in digital timer with battery backup. GFCI main circuit breaker provides the ultimate in safety and protection for you and your environment - 50 Amp or 60 Amp main capacity. Ten timed 240 Volt outlets (6-15r) and five 120 Volt outlets (5-15r). Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. Plug andamp; play (14-50p) or hardwire.|http://www.horticulturesource.com/powerbox-powerbox-dpc-12000-50a-4p-plug-play--p11028/|http://www.horticulturesource.com/images/702940.png|548.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702945|11029|Powerbox DPC-12000-60A-4HW (Hardwire)|Powerbox DPC-12000A workhorse for the serious gardener, the DPC-12000 can run up to ten1000 Watt lights, plus 120 Volt accessories - safely and reliably. TheDPC-12000 is the best choice for mid-scale growers on a budget.Hand-built at their California factory, 5 year warranty. Built-in digital timer with battery backup. GFCI main circuit breaker provides the ultimate in safety and protection for you and your environment - 50 Amp or 60 Amp main capacity. Ten timed 240 Volt outlets (6-15r) and five 120 Volt outlets (5-15r). Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. Plug andamp; play (14-50p) or hardwire.|http://www.horticulturesource.com/powerbox-powerbox-dpc-12000-60a-4hw-hardwire--p11029/|http://www.horticulturesource.com/images/702940.png|559.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702950|11030|Powerbox DPC-12000-D-60A-4HW|Powerbox DPC-12000-D-60A-4HW The DPC-12000-D is capable of running up to twelve 1000 Watt lights at240 Volts. This is a dual trigger cord model - there is no built-intimer. Outlets are separated into two banks - each bank has six 240 Voltoutlets (6-15r) and three 120 Volt outlets (5-15r). Each bank ofoutlets in the DPC-12000-D has it's own trigger cord, which when poweris applied, activates the bank of outlets. Plug the trigger cords intothe timer(s) of your choice for simultaneous or independent activation.Hand-built at our California factory, 5 year warranty. GFCI main circuit breaker provides the ultimate in safety and protection for you and your environment - 30 Amp, 50 Amp or 60 Amp main capacity. Dual trigger cord operation - run two rooms on independent timers, or stagger startup for one room - lots of possibilities.|http://www.horticulturesource.com/powerbox-powerbox-dpc-12000-d-60a-4hw-p11030/|http://www.horticulturesource.com/images/702950.png|592.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702955|11031|Powerbox DPC-15000-50A-4P (PlugandPlay)|Powerbox DPC-15000This unit is capable of running up to ten 1000 Watt lights, plus 120Volt accessories - safely and reliably. The DPC-15000 is top-qualityfrom the inside, out - every component is selected based on safety,durability and reliability. GFCI main circuit breaker provides theultimate in safety and protection for you and your environment - 50 Ampor 60 Amp main capacity. Ten timed 240 Volt outlets (6-15r) and five 120Volt outlets (5-15r). Plug andamp; play (14-50P) or hardwire. Built-in AUBE digital timer with battery backup. Digital ammeter shows exact current draw in real-time. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000-50a-4p-plug-play--p11031/|http://www.horticulturesource.com/images/702955.png|592.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702960|11032|Powerbox DPC-15000-60A-4HW (Hardwire)|Powerbox DPC-15000This unit is capable of running up to ten 1000 Watt lights, plus 120Volt accessories - safely and reliably. The DPC-15000 is top-qualityfrom the inside, out - every component is selected based on safety,durability and reliability. GFCI main circuit breaker provides theultimate in safety and protection for you and your environment - 50 Ampor 60 Amp main capacity. Ten timed 240 Volt outlets (6-15r) and five 120Volt outlets (5-15r). Plug andamp; play (14-50P) or hardwire. Built-in AUBE digital timer with battery backup. Digital ammeter shows exact current draw in real-time. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000-60a-4hw-hardwire--p11032/|http://www.horticulturesource.com/images/702955.png|614.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702965|11033|Powerbox DPC-15000TD-50A-4P (PlugandPlay)|Powerbox DPC-15000TDIn addition to effortlessly powering ten 1000 Watt lights at 240 Volts,the DPC-15000TD has a special feature to protect the life of your bulbsduring power failures. Dial-in a delay of 1 to 10 minutes before yourlights will restart when power is restored after a power outage. GFCImain circuit breaker provides the ultimate in safety and protection foryou and your environment - 50 Amp or 60 Amp main capacity. Ten timed 240Volt outlets (6-15r) and five 120 Volt outlets (5-15r) with built-indigital timer with battery backup. Real-time digital ammeter shows precise amperage draw. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000td-50a-4p-plug-play--p11033/|http://www.horticulturesource.com/images/702965.png|669.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702970|11034|Powerbox DPC-15000TD-60A-4HW (Hardwire)|Powerbox DPC-15000TDIn addition to effortlessly powering ten 1000 Watt lights at 240 Volts,the DPC-15000TD has a special feature to protect the life of your bulbsduring power failures. Dial-in a delay of 1 to 10 minutes before yourlights will restart when power is restored after a power outage. GFCImain circuit breaker provides the ultimate in safety and protection foryou and your environment - 50 Amp or 60 Amp main capacity. Ten timed 240Volt outlets (6-15r) and five 120 Volt outlets (5-15r) with built-indigital timer with battery backup. Real-time digital ammeter shows precise amperage draw. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000td-60a-4hw-hardwire--p11034/|http://www.horticulturesource.com/images/702965.png|691.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702980|11035|Powerbox LSM-8 Flipbox|Powerbox LSM-8 FlipboxThe FLIPBOX LSM-8 is 4 ballast, 8 light FLIPBOX that allows you to run8 lights from 4 ballasts. Convenient single unit with built-in timerallows for complete automation of switching between 8 lights from 4ballasts. Voltage independent - works with 120 Volt and 240 Voltballasts. Fits Sunlight Supply style ballasts. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by your own timer, or other devices. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-lsm-8-flipbox-p11035/|http://www.horticulturesource.com/images/702980.png|383.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702920|11036|Powerbox DPC-7500-240V-4P|Powerbox DPC-7500-240V-4PThe DPC-7500-240V is a versatile 240 Volt lighting controller that caneffortlessly run up to six 1000 Watt lights. This model connects to a 3or 4-wire 240 Volt service, and in many cases, you can plug right intoan existing dryer-type outlet to be up and running in minutes.Hand-built at their California factory, 5 year warranty. Built-in digital timer with battery backup. Six timed 240 Volt outlets (6-15r) with outlets 5 andamp; 6 switchable to constant power. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. 5' main power cord, plug andamp; play (10-30p or 14-30p).|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-240v-4p-p11036/|http://www.horticulturesource.com/images/702920.png|267.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702925|11037|Powerbox DPC-7500-COMBO-4P|Powerbox DPC-7500-COMBO-4PThe DPC-7500-COMBO is a versatile 240 Volt lighting controller thatprovides four 240 Volt outlets and two 120 Volt outlets. This modelconnects to a 4-wire 240 Volt service and in many cases, you can plugright into an existing dryer-type outlet (14-30r) to be up and runningfast. A unique feature of this model is that you can also set the lasttwo outlets to be timed with the main group, or to provide constantpower. Hand-built at their California factory, 5 year warranty. Built-in digital timer with battery backup. Four timed 240 Volt outlets (6-15r) and two 120 Volt outlets (5-15r). The 120 Volt outlets can be timed with the 240 Volt outlets, or set to constant power. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. 5' main power cord - plug andamp; play (14-30p).|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-combo-4p-p11037/|http://www.horticulturesource.com/images/702925.png|269.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702930|11038|Powerbox DPC-7500-120V-4P|Powerbox DPC-7500-120V-4PThe DPC-7500-120V is a unique lighting controller that connects to a4-wire 240 Volt service, but provides six 120 Volt outlets (5-15r) thatallow you to run up to 60 amps at 120 Volts. In many cases, you can plugthis unit right into an existing dryer-type outlet (14-30r). Hand-builtat their California factory, 5 year warranty. Built-in digital timer with battery backup. Six timed 120 Volt outlets (5-15r) provide up to 10 amps each - the last two outlets can be set to constant power. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by other devices. 5' main power cord - plug andamp; play (14-30p).|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-120v-4p-p11038/|http://www.horticulturesource.com/images/702930.png|273.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702935|11039|Powerbox DPC-8000-240-4P|Powerbox DPC-8000-240V-4PWith a DPC-8000 240 Volt lighting controller from Powerbox, you cancontrol up to eight 1000 Watt lights from one timer. Designed withsafety in mind, the DPC-8000 is an affordable lighting controller madein the USA from industrial-grade components. With this unit, running upto eight lights has never been quicker or easier - you can plug directlyin to a 240 Volt range outlet to have your lights up-and-running inminutes. It's easy to mount to a wall (keyhole tabs), or set on a flatsurface (non-skid rubber feet). Programmable digital timer to control light cycles. Eight NEMA type 6-15 240 Volt outlet receptacles. 4' main power cord - Plug andamp; play NEMA 14-50P, 4-Prong Plug. Hand-built at their California factory, 5 year warranty.|http://www.horticulturesource.com/powerbox-powerbox-dpc-8000-240-4p-p11039/|http://www.horticulturesource.com/images/702935.png|270.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702975|11040|Powerbox OG Flipbox|Powerbox OG FlipboxThe original Powerbox FLIPBOX is an individual light switching modulethat allows an individual ballast to run two separate lights - one at atime - by switching back and forth between each light, at auser-specified interval. Flipboxes have lots of possibilities and savelots of money, when compared to buying new digital ballasts. Doubleproduction without installing additional power circuits and save moneyon ballasts by using one ballast. Hand-built at their Californiafactory, 5 year warranty. Voltage independent - works with 120 Volt and 240 Volt ballasts. Fits Sunlight Supply style ballasts. Use one Flipbox per ballast and chain up to 20 individual Flipbox modules together for simultaneous flipping.|http://www.horticulturesource.com/powerbox-powerbox-og-flipbox-p11040/|http://www.horticulturesource.com/images/702975.png|114.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702985|11041|Powerbox LSM-12 Flipbox|Powerbox LSM-12 FlipboxFLIPBOX LSM-12 is 6 ballast, 12 light FLIPBOX that allows you to run12 lights from 6 ballasts. The FLIPBOX LSM-12 has a built-in digitaltimer with battery backup to allow for complete automation of switchingbetween 12 lights from 6 ballasts. Hand-built at their Californiafactory, 5 year warranty. Voltage independent - works with 120 Volt and 240 Volt ballasts. Fits Sunlight Supply style ballasts. Detachable trigger cord can override the built-in timer, so Powerbox can be controlled by your own timer, or other devices. Double production without installing additional power circuits and saves money on ballasts, use 6 ballasts to run 12 lights.|http://www.horticulturesource.com/powerbox-powerbox-lsm-12-flipbox-p11041/|http://www.horticulturesource.com/images/702985.png|504.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|eco-5821|11364|Autopilot Analog 24-Hour Recycling Timer|Analog 24 Hour Recycling TimerPrecise cycle timer with day/night detection controls any applicationrequiring a device to be turned on and off at precise intervals. Thistimer has a wide range of uses including controlling hydroponic pumps,CO2 injection, turning on and off exhaust fans, misters and more. Controls 120V pumps, fans, and more on a periodic repeat cycle ON duration spans from 15 seconds to 5 hours OFF duration spans from 15 seconds to 13 hours Functions during the day, during the night, or 24 hoursAnalog 24hr Recycling TimerPrecise cycle timer with day/night detectionControls any application requiring a device to be turned on and off at precise intervals. This timer has a wide range of uses including controlling hydroponic pumps, CO2 injection, turning on and off exhaust fans, misters and more.There is no programming required, it is easy to set and operate. The timer has adjustable ON time of 15 seconds to 5 hours and an OFF time of 15 seconds to 13 hours. Cycle timing is adjustable for operation during the day, night, or 24 hours.Controls 120V pumps, fans, and more on a periodic repeat cycleON duration spans from 15 seconds to 5 hours OFF duration spans from 15 seconds to 13 hours Functions during the day, during the night, or 24 hoursSKU: APCTART|http://www.horticulturesource.com/hydrofarm-autopilot-analog-24-hour-recycling-timer-p11364/|http://www.horticulturesource.com/images/eco-5821.JPG|52.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||734170|12922|CT-1 Short Cycle Timer (10/Cs)|CT-1 Digital Short Cycle Timer Patent Pending design Large, easy to read LCD display Precise timing schedules ON time from 10 seconds to 24 hours OFF time from 10 seconds to 24 hours Photocell to allow use in daytime only, nighttime only or both day andamp; night Ni-MH back-up battery stores user settings in case of power failure Great for use with CO2 regulator, pump or ozone generator! 15 Amps/120 Volts/ 60 Hz. 1 year warranty|http://www.horticulturesource.com/ct-1-short-cycle-timer-10-cs--p12922/|http://www.horticulturesource.com/images/734170-front.png|29.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702856|13711|Titan Controls Hades 2 Digital Recycle and Light Timer w/ High Temp Shut-Off|Titan Controls Hades 2The Hades 2 controls up to two light banks via your lighting controller 'trigger' cords, has a high temperature shut-off function to turn off your grow lights and also a 'hot start' protection function to allow your lights to cool before re-striking. The recycle timer can be set to run in day only, night only or 24 hour mode. This controller has a 3' remote sensor to monitor temperature levels. 15 Amps/120 Volts/60 Hz. 3 year warranty.|http://www.horticulturesource.com/titan-controls-titan-controls-hades-2-digital-recycle-and-light-timer-w-high-temp-shut-off-p13711/|http://www.horticulturesource.com/images/702856.png|129.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710001|13982|Gro1 Dual Outlet Mechanical Timer - 120V|Gro1 Dual Outlet Mechanical Timer - 120V (710001)15 minute on/off increments. 15 amp maximum load. 120V. UL approved. Manufacturer's Product Information MSRP $17.99 Dimensions7.75 x 3.5 x 5.5|http://www.horticulturesource.com/gro1-dual-outlet-mechanical-timer-120v-p13982/|http://www.horticulturesource.com/images/Gro_1_24_hour_pl_4d41c0c879b8e.jpg|6.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710002|13983|Gro1 Single Outlet Mechanical Timer - 120V|Gro1 Single Outlet Mechanical Timer - 120V (710002)15 minute on/off increments. 15 amp maximum load. 120V. UL approved. Manufacturer's Product Information MSRP $13.99 Dimensions4.3 x 3.5 x 8.75|http://www.horticulturesource.com/gro1-single-outlet-mechanical-timer-120v-p13983/|http://www.horticulturesource.com/images/710002.jpg|5.4400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710003|13984|Gro1 8-Way Power Strip with Timer - 120V|Gro1 8-Way Power Strip with Timer - 120V (710003)8 outlet surge protector. 4 outlets controlled by mechanical timer with 15 minute on/off increments. 5 cord. 15 amp max load. 120V. UL approved. Manufacturer's Product Information MSRP $22.99 Dimensions4.45 x 16.5 x 2.19|http://www.horticulturesource.com/gro1-8-way-power-strip-with-timer-120v-p13984/|http://www.horticulturesource.com/images/710003.jpg|16.5300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710005|13985|Gro1 Single Outlet Mechanical Timer - 240V|Gro1 Single Outlet Mechanical Timer - 240V (710005)Single outlet mechanical timer. 15 minute on/off increments. 15 amp max load. 240V. UL approved. Manufacturer's Product Information MSRP $18.99 Dimensions4.3 x 3.5 x 8.75|http://www.horticulturesource.com/gro1-single-outlet-mechanical-timer-240v-p13985/|http://www.horticulturesource.com/images/710005.jpg|9.1600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710010|13986|Gro1 Dual Outlet Digital Timer - 120V|Gro1 Dual Outlet Digital Timer - 120V (710010)2 outlet digital timer. 1 minute on/off increments. 15 amp max load. 120V. UL approved. Manufacturer's Product Information MSRP $22.99 Dimensions7.5 x 4 x 5.5|http://www.horticulturesource.com/gro1-dual-outlet-digital-timer-120v-p13986/|http://www.horticulturesource.com/images/Gro_1_Weekly_dig_4d41dcaabca72.jpg|11.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710015|13987|Gro1 Single Outlet Digital Timer - 240V|Gro1 Single Outlet Digital Timer - 240V (710015)Single outlet digital timer. 1 minute on/off increments. 15 amp max load. 240V. UL approved. Manufacturer's Product Information MSRP $21.99 Dimensions4.5 x 3 x 8.5|http://www.horticulturesource.com/gro1-single-outlet-digital-timer-240v-p13987/|http://www.horticulturesource.com/images/710015.jpg|12.1200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-HT9988|14231|LIGHTSPEED FLIP8 Lighting Controller|LIGHTSPEED FLIP8 Lighting Controller (HT9988)The Hydrotek LIGHTSPEED FLIP8 is an automated 4 ballast, 8 light switching unit which allows you to run 8 lights from 4 ballasts. These units work with ballasts plugged into any voltage. Heavy duty and built to last, they can be used with any 120V timer. Save money on your ballasts - use 4 ballasts to run 8 lights! Optional 240V timer outlet. Made in Canada. Manufacturer's Product Information MSRP $379.95 Dimensions10 x 9 x 22|http://www.horticulturesource.com/lightspeed-flip8-lighting-controller-p14231/|http://www.horticulturesource.com/images/hydrotekflip8.jpg|331.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-HT99816|14232|LIGHTSPEED FLIP16 Lighting Controller|The Hydrotek LIGHTSPEED FLIP16 is an automated light switching unit which allows you to control 16 lights from 8 ballasts (8 lights on at a time). These units work with ballasts of any voltage and are heavy duty and built to last. 16 reflector plugs on one side, 8 ballast cords on the other side. Save money on your ballasts - use half as many! 120V power cord works with any 120V timer. Compatible with standard style reflectors and ballasts. Made in Canada. On Special no returns accepted.Works with:MH + HPS Bulbs:1500w1000w600w400w250wDigital + Magnetic Ballast:1500w1000w600w400w250w|http://www.horticulturesource.com/lightspeed-flip16-lighting-controller-p14232/|http://www.horticulturesource.com/images/hydrotekflip16.jpg|530.00|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|LTL Controls|dl-270004|14747|Master 4 - Lighting Relay Controller|Master 4 - Lighting Relay Controller (270004)The Master 4 by LTL Controls is the safest and easiest way to control a 4 HID light setup. This controller has the capability to run a maximum of (4) 1000W ballasts using 120V or 240V power, with a maximum relay amperage of 30 amps, and includes a 120V trigger cable which can be connected to a 120V timing device. It is recommended to consult a certified electrician before installing or using this controller, especially if you are unfamiliar with electrical wiring and circuits. Manufacturer's Product Information MSRP $124.95|http://www.horticulturesource.com/ltl-controls-master-4-lighting-relay-controller-p14747/|http://www.horticulturesource.com/images/master4.jpg|81.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|LTL Controls|dl-270008|14748|Master 8 - Lighting Relay Controller|Master 8 - Lighting Relay Controller (270008)The Master 8 by LTL Controls is the safest and easiest way to control an 8 HID lighting setup. This controller has the capability to run a maximum of (8) 1000W ballasts using 120V or 240V power, with a maximum relay amperage of 50 amps, and includes a 120V trigger cable which can be connected to a 120V timing device. It is recommended to consult a certified electrician before installing or using this controller, especially if you are unfamiliar with electrical wiring and circuits. Manufacturer's Product Information MSRP $209.95|http://www.horticulturesource.com/ltl-controls-master-8-lighting-relay-controller-p14748/|http://www.horticulturesource.com/images/master8.jpg|133.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-HT9984|15435|LIGHTSPEED FLIP4 Lighting Controller|LIGHTSPEED FLIP4 Lighting Controller (HT9984)The Hydrotek LIGHTSPEED FLIP4 is an automated light switching unit which allows you to control 4 lights from 2 ballasts (2 lights on at a time). These units work with ballasts of any voltage and are heavy duty and built to last. 4 reflector plugs on one side, 2 ballast cords on the other side. Save money on your ballasts - use half as many! 120V power cord works with any 120V timer. Compatible with standard style reflectors and ballasts. Made in Canada. Works with: MH + HPS Bulbs: 1500w 1000w 600w 400w 250w Digital + Magnetic Ballast: 1500w 1000w 600w 400w 250w Manufacturer's Product Information MSRP $249.95|http://www.horticulturesource.com/lightspeed-flip4-lighting-controller--p15435/|http://www.horticulturesource.com/images/hydrotekflip4.jpg|200.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-HT99820|15434|LIGHTSPEED FLIP20 Lighting Controller|LIGHTSPEED FLIP20 Lighting Controller (HT99820)The Hydrotek LIGHTSPEED FLIP20 is an automated light switching unit which allows you to control 20 lights from 10 ballasts (10 lights on at a time). These units work with ballasts of any voltage and are heavy duty and built to last. 20 reflector plugs on one side, 10 ballast cords on the other side. Save money on your ballasts - use half as many! 120V power cord works with any 120V timer. Compatible with standard style reflectors and ballasts. Made in Canada. Works with: MH + HPS Bulbs: 1500w 1000w 600w 400w 250w Digital + Magnetic Ballast: 1500w 1000w 600w 400w 250w Manufacturer's Product Information MSRP $999.95|http://www.horticulturesource.com/lightspeed-flip20-lighting-controller-p15434/|http://www.horticulturesource.com/images/HT99820-1.jpg|753.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||dl-710013|15272|120V Single Outlet Digital Timer|120V Single Outlet Digital Timer (710013)With the capacity to run up to 8 separate timer programs, our new 120V Single Outlet Digital Timer is ideal for any grow setup and can be set to 1 second intervals! The 15 amp capacity lets you pair this timer with almost any component in your grow room, including pumps, lights, and fans. This timer is UL approved. Download user's manual here Case Quantity = 50 Manufacturer's Product Information MSRP $18.95|http://www.horticulturesource.com/120v-single-outlet-digital-timer-p15272/|http://www.horticulturesource.com/images/timer13.jpg|10.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCL4120|17010|High Power HID Controller (120V Only) 30A|Autopilot High Power HID Controller (120V Only) 30A (APCL4120)Control multiple lights from one time clock or controller device. Power is wired directly into the four-outlet timer box and all of the outlets are controlled by one 120V trigger cable. Rated for 30 amps at 120 volts.andnbsp;You can plug the trigger cable into a standard 24-hour timer or environmental controller. Three year no hassle warranty.APCL4120 has four 120 volt receptacles (Nema 5-15).Premium quality industrial grade relay.andnbsp; Manufacturer's Product Information MSRP each $124.95 UPC638104005999 Dimensions10 x 4.5 x 8 Case Quantity1|http://www.horticulturesource.com/hydrofarm-high-power-hid-controller-120v-only-30a-p17010/|http://www.horticulturesource.com/images/APCL4120.jpg|86.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCL4240|17011|High Power HID Controller 4000W (240V Only) 30A|Autopilot High Power HID Controller 4000W (240V Only) 30A (APCL4240)Control multiple lights from one time clock or controller device. Power is wired directly into the four-outlet timer box and all of the outlets are controlled by one 120V trigger cable. Rated for 30 amps at 240 volts. You can plug the trigger cable into a standard 24-hour timer or environmental controller. Three year no hassle warranty.APCL4240 has four 240 volt receptacles (Nema 6-15).Premium quality industrial grade relay.andnbsp; Manufacturer's Product Information MSRP each $124.95 UPC638104006002 Dimensions10 x 4 x 8 Case Quantity1|http://www.horticulturesource.com/hydrofarm-high-power-hid-controller-4000w-240v-only-30a-p17011/|http://www.horticulturesource.com/images/APCL4240.jpg|87.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCL4DX|17012|Autopilot High Power HID Controller 4000W (120V/240V), 30A|Control multiple lights from one timer or controller device. Power is wired directly into the four-outlet timer box and all of the outlets are controlled by one detachable 120V trigger cable. Rated for 30 amps at 120/240 volts. The trigger cable can be plugged into a standard 24-hour timer or environmental controller. Three year no hassle warranty.APCL4DX has four 120/240 volt style outlets which allow running your ballasts at 120/240 volts without having to change out your ballast power cords.andnbsp;4000 Watt, 4 light controllerPremium quality industrial grade relayX-style outlets allow 120V or 240V ballast operation30 Amp maximumAttached 120V trigger cableImproved terminal blocksandnbsp;andnbsp;|http://www.horticulturesource.com/hydrofarm-autopilot-high-power-hid-controller-4000w-120v-240v-30a-p17012/|http://www.horticulturesource.com/images/APCL4DX-n.jpg|82.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCL8240|17013|High Power HID Controller 8000W (240V Only) 60A|Autopilot High Power HID Controller 8000W (240V Only) 60A (APCL8240)Control multiple lights from one time clock or controller device. Power is wired directly into the four-outlet timer box and all of the outlets are controlled by one 120V trigger cable. Rated for 60 amps at 240 volts. You can plug the trigger cable into a standard 24-hour timer or environmental controller. Three year no hassle warranty.APCL8240 has eight 240 volt receptacles (Nema 6-15).Two premium quality industrial grade relays. Manufacturer's Product Information MSRP each $209.95 UPC638104006033 Dimensions10 x 4.5 x 8 Case Quantity1|http://www.horticulturesource.com/hydrofarm-high-power-hid-controller-8000w-240v-only-60a-p17013/|http://www.horticulturesource.com/images/APCL8240.jpg|149.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCL8DX|17014|Autopilot High Power HID Controller, 8000W (120/240V), 60A|Control up to eight lights from one timer or controller device. 240V power is wired directly into the eight outlet timer box, and all of the outlets are controlled by one detachable 120V trigger cable. Rated for 60 amps at 120/240 with eight 120/240V X-style receptacles. The light controller is backed by a hassle free 3 year warranty.andnbsp;APCL8DX has eight 120/240 volt style outlets which allow running your ballasts at 120/240 volts without having to change out your ballast power cords.andnbsp;andnbsp;8000 Watt, 8 light controllerandnbsp;Premium quality industrial grade relayX-style outlets allow 120V or 240V ballast operation60 Amp maximum (30 amps x 2 relays)Attached 120V trigger cableUpgraded terminal blocksandnbsp;|http://www.horticulturesource.com/hydrofarm-autopilot-high-power-hid-controller-8000w-120-240v-60a-p17014/|http://www.horticulturesource.com/images/APCL8DX-n.jpg|138.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCLC12DX|17015|Commercial 12 Light Controller High Power HID|Autopilot Commercial 12 Light Controller High Power HID (APCLC12DX)Autopilot's twelve outlet commercial light controller is designed to safely control today's digital ballasts.The commercial twelve light controller features an integrated time delay to "soft start" each bank of 4 lights (5 min delay between banks), reducing the start-up load. External breakers allow the user to easily shut down power to the attached equipment. The commercial light controller is made from steel and built to last.andbull; Heavy-duty relaysandbull; Durable steel enclosureandbull; Operate multiple HID or fluorescent light fixtures from a single controller or timer deviceandbull; 120V trigger cable and 120V accessory outletandnbsp; Manufacturer's Product Information MSRP each $439.95 UPC638104011259 Dimensions8.7 x 5.5 x 17.7 Case Weight46 Case Quantity4|http://www.horticulturesource.com/hydrofarm-commercial-12-light-controller-high-power-hid-p17015/|http://www.horticulturesource.com/images/APCLC12DX.jpg|290.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCLC8DX|17016|Commercial 8 Light Controller High Power HID|Autopilot Commercial 8 Light Controller High Power HID (APCLC8DX)Autopilot's eight outlet commercial light controller is designed to safely control today's digital ballasts.The commercial eight light controller features an integrated delay to "soft start" each bank of 4 lights (5 min delay between banks), reducing the start-up load. External breakers allow the user to easily shut down power to the attached equipment. The commercial light controller is made from steel and built to last.andbull; Heavy-duty relaysandbull; Durable steel enclosureandbull; Operate multiple HID or fluorescent light fixtures from a single controller or timer deviceandbull; 120V trigger cable and 120V accessory outletandnbsp; Manufacturer's Product Information MSRP each $324.95 UPC638104005890 Dimensions5 x 4 x 8 Case Weight50 Case Quantity6|http://www.horticulturesource.com/hydrofarm-commercial-8-light-controller-high-power-hid-p17016/|http://www.horticulturesource.com/images/APCLC8DX.jpg|232.0100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCTART|17017|Analog 24hr Recycling Timer|Autopilot Analog 24hr Recycling Timer (APCTART)Precise cycle timer with day/night detectionControls any application requiring a device to be turned on and off at precise intervals. This timer has a wide range of uses including controlling hydroponic pumps, CO2 injection, turning on and off exhaust fans, misters and more.There is no programming required, it is easy to set and operate. The timer has adjustable ON time of 15 seconds to 5 hours and an OFF time of 15 seconds to 13 hours. Cycle timing is adjustable for operation during the day, night, or 24 hours.Controls 120V pumps, fans, and more on a periodic repeat cycleON duration spans from 15 seconds to 5 hours OFF duration spans from 15 seconds to 13 hours Functions during the day, during the night, or 24 hoursandnbsp; Manufacturer's Product Information MSRP each $74.95 UPC638104005920 Dimensions9 x 6.5 x 12.5 Case Weight14 Case Quantity16|http://www.horticulturesource.com/hydrofarm-analog-24hr-recycling-timer-p17017/|http://www.horticulturesource.com/images/APCTART.jpg|49.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APCTMDT|17018|Master Digital Timer|Autopilot Master Digital Timer (APCTMDT)Combination Recycling and Lighting Timer The Autopilot Master Digital Timer (MDT) controls lighting and recycling functions in your grow area. The MDT has dual timer functions, a 24 hour time clock for lighting and a recycling timer for pumps or CO2 injection. The MDT has four outlets. One controls a pump or other recycling device; two are for daytime devices such as lights and light movers; and one is for a night device, which would turn on at night.The MDT features a high temperature shutdown function that detects unsafe high temperatures in the grow room and turns off the HID lights in the event of a ventilation failure. The MDT also features hot start protection to ensure proper lamp cooling before attempting to re-fire. The precise cycle timer can be programmed anywhere between 1 second and 96 hours.andbull; Precise digital time clock with battery backupandbull; Adjustable high temperature shutdown and hot start preventionandbull; Recycling on/off range - 1 second to 96 hoursandbull; 3' remote temperature probeNOTE: This controller has a 14.5A maximum load. For higher amperage units, or combined lighting wattage above 1200W, it is recommended to use a lighting controller. Manufacturer's Product Information MSRP each $189.95 UPC094922294517 Dimensions6 x 12 x 6 Case Weight32 Case Quantity8|http://www.horticulturesource.com/hydrofarm-master-digital-timer-p17018/|http://www.horticulturesource.com/images/APCTMDT_2.jpg|125.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAHLC1|17679|HID Lighting Controller, Hi-Temp Shutdown, 50-115'f, 15-Amp@120vac|C.A.P. (Custom Automated Products) HID Lighting Controller, Hi-Temp Shutdown, 50-115'f, 15-Amp@120vac (CAHLC1)Used as a high temperature shutdown by plugging your lights into the outlet and setting the maximum temperature that your growing environment can sustain. Manufacturer's Product Information MSRP each $82.95 UPC817205010242 Dimensions5.7 x 3.4 x 5.4 Case Quantity1|http://www.horticulturesource.com/hydrofarm-hid-lighting-controller-hi-temp-shutdown-50-115-f-15-amp-120vac-p17679/|http://www.horticulturesource.com/images/CAHLC1.jpg|58.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAHLC2|17680|C.A.P. (Custom Automated Products) HID Lighting Controller, Delay On Timer, 15 Min On Delay, 15-Amp@120vac|Designed to protect your expensive HID lights from hot starts, which occurs when your lights are turned off and then back on before the lamp is allowed to cool off.|http://www.horticulturesource.com/hydrofarm-c-a-p-custom-automated-products-hid-lighting-controller-delay-on-timer-15-min-on-delay-15-amp-120vac-p17680/|http://www.horticulturesource.com/images/CAHLC2.jpg|54.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAHLC3|17681|HID Lighting Controller, 15 Minute "Hot-Start" and High-Temp Protection|C.A.P. (Custom Automated Products) HID Lighting Controller, 15 Minute "Hot-Start" and High-Temp Protection (CAHLC3)The HLC-3e protects your garden from overheating and your light from Hot Starts". The HLC-3e constantly monitors your garden temperature. If the garden exceeds the temperature that you have set, the HLC-3e turns off your lights so that crop damage will not occur. It then turns on the "Temp Exceeded" light to let you know that an overheating situration occured. When the temperature returns to normal, it will turn your lights back on. The HLC-3e also constantly monitors the power going to your light. In the event of a power failure, it will not allow the light to restart until 15 minutes after the power is restored. This prevents your light from attempting to "Hot Start" your bulb, preventing bulb damage and increasing bulb life.The HLC-3e comes with a 15' remote temperature sensor. The HLC-3e is rated at 15 amps @ 120 volts. Manufacturer's Product Information MSRP each $92.95 UPC051000101259 Dimensions10.2 x 6.9 x 8.3 Case Quantity1|http://www.horticulturesource.com/hydrofarm-hid-lighting-controller-15-minute-hot-start-high-temp-protection-p17681/|http://www.horticulturesource.com/images/CAHLC3.jpg|65.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC12P4|17686|MLC 12 Light Master Lighting Controller, P4|C.A.P. (Custom Automated Products) MLC 12 Light Master Lighting Controller, P4 (CAMLC12P4)Unequivocally the best choice for moderate to large scale gardens, the MLC 12P4 lighting controllers deliver performance and value while still providing safety and reliability. These devices are capable of controlling up to 12 lights from a single trigger cord. Simply attach a 24-hour timer or control device to the 120 volt trigger cable, set your interval and you're done. Manufacturer's Product Information MSRP each $579.95 UPC051000100436 Dimensions18 x 4.5 x 16 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-12-light-master-lighting-controller-p4-p17686/|http://www.horticulturesource.com/images/CAMLC12P4.jpg|400.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC16|17687|MLC 16 Light Master Lighting Controller Commercial (240 volt outlets)|C.A.P. (Custom Automated Products) MLC 16 Light Master Lighting Controller Commercial (240 volt outlets) (CAMLC16)The MLC 16andnbsp; lighting controllers deliver performance and value while still providing safety and reliability. These devices are capable of controlling up to 16 lights from from a single trigger cord. Simply plug the trigger cable into a 24-hour timer or control device, set your interval and you're done. Run 80 amps power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or environmental controller. Manufacturer's Product Information MSRP each $579.95 UPC051000100443 Dimensions18 x 4.5 x 16 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-16-light-master-lighting-controller-commercial-240-volt-outlets--p17687/|http://www.horticulturesource.com/images/CAMLC16.jpg|393.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC16A|17688|MLC 16 Light Master Lighting Controller, A|C.A.P. (Custom Automated Products) MLC 16 Light Master Lighting Controller, A (CAMLC16A)The MLC-16 and MLC-16a represent the latest in large scale lighting control. They are the best devices for controlling up to 16 lights from one timer or controller. You run 80 amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cord. You can plug the trigger cord into a standard 24 hour timer or lighting controller. The MLC-16 features standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-16a uses 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16 contains 4 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 240 volts. Manufacturer's Product Information MSRP each $225 UPC051000100290 Dimensions18 x 4.5 x 16 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-16-light-master-lighting-controller-a-p17688/|http://www.horticulturesource.com/images/CAMLC16A.jpg|431.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC16D|17689|MLC 16D Light Commerical Dual Trigger Cable (240 volt outlets)|C.A.P. (Custom Automated Products) MLC 16D Light Commerical Dual Trigger Cable (240 volt outlets) (CAMLC16D)The MLC-16D and MLC-16Da represent the latest in large scale lighting control. They are the best devices for controlling two sets of 8 lights, each with separate timings. You run 80 amp, 240 volt power to the MLC, and have the ability to control 8 outlets with one trigger cord and 8 outlets with the other. Plug the trigger cords into standard timers, and when trigger cords receive power, the lights will turn on. The MLC-16D features sixteen standard 240 volt style (NEMA 6-15) outlets to plug in your ballasts. The MLC-16Da has 120 volt style (NEMA 5-15) outlets, which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16D and MLC-16Da contains 4 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16D's AND MLC-16Da's are rated for 80 amps @ 240 volts. Manufacturer's Product Information MSRP each $599.95 UPC817205012499 Dimensions18 x 4.5 x 16 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-16d-light-commerical-dual-trigger-cable-240-volt-outlets--p17689/|http://www.horticulturesource.com/images/CAMLC16D.jpg|406.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC16DX|17690|MLC 16 Light Master Lighting Controller w/Dual Trigger, DX|C.A.P. (Custom Automated Products) MLC 16 Light Master Lighting Controller w/Dual Trigger, DX (CAMLC16DX)The MLC-16D and MLC-16Da represent the latest in large scale lighting control. They are the best devices for controlling two sets of 8 lights, each with separate timings. You run 80 amp, 240 volt power to the MLC, and have the ability to control 8 outlets with one trigger cord and 8 outlets with the other. Plug the trigger cords into standard timers, and when trigger cords receive power, the lights will turn on. The MLC-16D features sixteen standard 240 volt style (NEMA 6-15) outlets to plug in your ballasts. The MLC-16Da has 120 volt style (NEMA 5-15) outlets, which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-16D and MLC-16Da contains 4 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16D's AND MLC-16Da's are rated for 80 amps @ 240 volts. Manufacturer's Product Information MSRP each $579.95 UPC817205012260 Dimensions16 x 4.5 x 18 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-16-light-master-lighting-controller-w-dual-trigger-dx-p17690/|http://www.horticulturesource.com/images/CAMLC16DX.jpg|393.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC16X|17691|MLC 16 Light Master Lighting Controller, X|C.A.P. (Custom Automated Products) MLC 16 Light Master Lighting Controller, X (CAMLC16X)The MLC-16X represent the latest in large scale lighting control. It is the best devices for controlling up to 16 lights from one time-clock or controller. You run 80 (MLC-16X) amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer or lighting controller. The MLC-16X feature a 120/240 volt style outlets, which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-16X contains 4 banks of 4 lights. Dual trigger cables are also available to split 2 series of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-16's are rated for 80 amps @ 120/240 volts. Manufacturer's Product Information MSRP each $539.95 UPC817205012994 Dimensions21.25 x 7 x 19 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-16-light-master-lighting-controller-x-p17691/|http://www.horticulturesource.com/images/CAMLC16X.jpg|356.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC20P4|17692|Master Lighting Controller 20-240v plugs + 4 120v outlets w/Trigger|C.A.P. (Custom Automated Products) MLC 20 Light Master Lighting Controller,P4 (CAMLC20P4)The 20P4 is capable of controlling up to 20 lights from a single trigger cord. Simply attach a 24-hour timer or control device to the 120 volt trigger cable, set your interval and you're done. Manufacturer's Product Information MSRP each $734.95 UPC051000106063 Dimensions21.25 x 7 x 19 Case Quantity1|http://www.horticulturesource.com/hydrofarm-master-lighting-controller-20-240v-plugs-4-120v-outlets-w-trigger-p17692/|http://www.horticulturesource.com/images/CAMLC20P4.jpg|489.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC20X|17693|MLC 20 Light Master Lighting Controler, Universal X-Plug|C.A.P. (Custom Automated Products) MLC 20 Light Master Lighting Controler, Universal X-Plug (CAMLC20X)Requires 80 Amp 240V power to the MLC-12X+4 controller Controls 20-240V 1000W grow lights from one timer or controller: ballasts must be wired for 240V operation Plug 120V trigger cable into a standard 24 hour timer or an environmental controllerMLC-20X+4 feature standard Universal X-Plug outlets, which allows for running your ballast at 120/240 volts without having to change out your ballast power cords Plug 240V ballasts into each of the 20-120V.240V outlets on the lighting relay; if you have a 120V ballasts that has been rewired for 240V you do not need to change the power cord Includes 4 outlets to control your equipment at 120 volts Do not exceed 80 amps Manufacturer's Product Information MSRP each $689.95 UPC051000100313 Dimensions16 x 4.5 x 18 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-20-light-master-lighting-controler-universal-x-plug-p17693/|http://www.horticulturesource.com/images/CAMLC20X.jpg|491.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC24|17694|MLC 24 Light Master Lighting Controller|C.A.P. (Custom Automated Products) MLC 24 Light Master Lighting Controller (CAMLC24)The MLC-24 and MLC-24a represent the latest in large scale lighting control. They are the best devices for controlling up to 16 lights from one timer or controller. You run 120 amp power to the MLC, and all of the outlets are controlled by one 120 volt trigger cord. You can plug the trigger cord into a standard 24 hour timer or lighting controller. The MLC-24 features standard 240 volt style (NEMA 6-15) outlets, which your ballasts are plugged into. The MLC-24a uses 120 volt style (NEMA 5-15) outlets which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-24 contains 6 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24's are rated for 120 amps @ 240 volts. Manufacturer's Product Information MSRP each $734.95 UPC051000100467 Dimensions16 x 4.5 x 18 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-24-light-master-lighting-controller-p17694/|http://www.horticulturesource.com/images/CAMLC24.jpg|489.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC24D|17695|MLC 24 Light Commerical Dual Trigger Cable, D|C.A.P. (Custom Automated Products) MLC 24 Light Commerical Dual Trigger Cable, D (CAMLC24D)The MLC-24D and MLC-24Da represent the latest in large scale lighting control. They are the best devices for controlling two sets of 12 lights, each with separate timings. You run 120 amp, 240 volt power to the MLC, and have the ability to control 12 outlets with one trigger cord and 12 outlets with the other. Plug the trigger cords into standard timers, and when trigger cords receive power, the lights will turn on. The MLC-24D features twenty-four standard 240 volt style (NEMA 6-15) outlets to plug in your ballasts. The MLC-24Da has 120 volt style (NEMA 5-15) outlets, which allows for running your ballasts at 240 volts without having to change out your ballast power cords. The MLC-24D and MLC-24Da contains 6 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24D's AND MLC-24Da's are rated for 120 amps @ 240 volts. Manufacturer's Product Information MSRP each $759.95 UPC817205013922 Dimensions16 x 4.5 x 18 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-24-light-commerical-dual-trigger-cable-d-p17695/|http://www.horticulturesource.com/images/CAMLC24D.jpg|506.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC24DX|17696|MLC 24 Light Master Lighting Controller w/Dual Trigger, DX|C.A.P. (Custom Automated Products) MLC 24 Light Master Lighting Controller w/Dual Trigger, DX (CAMLC24DX)The MLC-24DX represents the latest in large scale lighting control.andnbsp;It isandnbsp;the best device for controlling two sets of 12 lights, each with separate trigger cables. You run 120 amp, 240 volt power to the MLC, and have the ability to control 12 outlets with one trigger cord and 12 outlets with the other. Plug the trigger cords into standard 120v 15 amp timers, and when trigger cords receive power, the lights will turn on. The MLC-24DX features twenty-fourandnbsp;Universal X-Plugandnbsp;outlets that will work withandnbsp;either (240v NEMA 6-15) or (120v NEMA 5-15) plugs in your ballasts. The MLC-24DX contains 6 banks of 4 lights. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24X AND MLC-24DX are both rated for 120 amps @ 240 volts. Manufacturer's Product Information MSRP each $734.95 UPC817205012406 Dimensions16 x 4.5 x 18 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-24-light-master-lighting-controller-w-dual-trigger-dx-p17696/|http://www.horticulturesource.com/images/CAMLC24DX.jpg|489.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC24X|17697|MLC 24 Light Master Lighting Controller, X|C.A.P. (Custom Automated Products) MLC 24 Light Master Lighting Controller, X (CAMLC24X)The MLC-24X represents the latest in large scale lighting control.andnbsp;It isandnbsp;the best device for controlling up toandnbsp;24 lights from one timer or controller. The MLC-24 unitsandnbsp;featureandnbsp;Universal X-Plug styleandnbsp;outlets that will work withandnbsp;(NEMA 6-15) or (NEMA 5-15) plugs (120v or 240v). The MLC-24X unitandnbsp;contains 6 banks of 4 lights controlled by one 120 volt trigger cable that plugs into a standard 15 amp grounded timer. Each bank of 4 lights is protected by a 20 amp circuit breaker. The MLC-24's are rated for 120 amps @ 240 volts. Manufacturer's Product Information MSRP each $689.95 UPC817205011553 Dimensions10.2 x 6.8 x 8.3 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-24-light-master-lighting-controller-x-p17697/|http://www.horticulturesource.com/images/CAMLC24X.jpg|459.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC4X|17698|Master Light Controller, 30 Amp @ 120/240vac w/4-120vac plugs|C.A.P. (Custom Automated Products) Master Light Controller, 30 Amp @ 120/240vac w/4-120vac plugs (CAMLC4X)The MLC-4X and MLC-4XT Master Lighting Controllers are the best devices for controlling up to four HID lights from one time-clock or controller. You run 30 amp, 120/240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4X and MLC-4XT has four 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-4XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-4Xandrsquo;s are rated for 30 amps @ 120/240 volts. Manufacturer's Product Information MSRP each $124.95 UPC817205011560 Dimensions10.4 x 6.8 x 8.4 Case Quantity1|http://www.horticulturesource.com/hydrofarm-master-light-controller-30-amp-120-240vac-w-4-120vac-plugs-p17698/|http://www.horticulturesource.com/images/CAMLC4X.jpg|87.1100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC4XT|17699|MLC 4 Light Lighting Controller, XT, 30 Amp @ 240vac w/4-240vac plugs|C.A.P. (Custom Automated Products) MLC 4 Light Lighting Controller, XT, 30 Amp @ 240vac w/4-240vac plugs (CAMLC4XT)The MLC-4X and MLC-4XT Master Lighting Controllers are the best devices for controlling up to four HID lights from one time-clock or controller. You run 30 amp, 120/240 volt power into the MLC-4, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-4X and MLC-4XT has four 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-4XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-4Xandrsquo;s are rated for 30 amps @ 120/240 volts. Manufacturer's Product Information MSRP each $159.95 UPC817205011577 Dimensions12.2 x 8.6 x 10.3 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-4-light-lighting-controller-xt-30-amp-240vac-w-4-240vac-plugs-p17699/|http://www.horticulturesource.com/images/CAMLC4XT.jpg|108.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC8X|17700|MLC 8 Light Lighting Controler, X, 40 Amp @ 120/240vac w/8-120vac Plugs|C.A.P. (Custom Automated Products) MLC 8 Light Lighting Controler, X, 40 Amp @ 120/240vac w/8-120vac Plugs (CAMLC8X)The MLC-8X, MLC-8XT, and MLC-8DX Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8X, MLC-8XT, and MLC-8DX have eight 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-8XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-8DX has dual trigger cables to split 2 series of 4 lights. The MLC-8X's are rated for 40 amps @ 120/240 volts. Manufacturer's Product Information MSRP each $209.95 UPC817205012109 Dimensions12.2 x 8.7 x 10.2 Case Quantity1|http://www.horticulturesource.com/hydrofarm-mlc-8-light-lighting-controler-x-40-amp-120-240vac-w-8-120vac-plugs-p17700/|http://www.horticulturesource.com/images/CAMLC8X.jpg|144.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAMLC8XT|17701|Master Light Controller, 40 Amp @ 240vac w/8-120vac plugs|C.A.P. (Custom Automated Products) Master Light Controller, 40 Amp @ 240vac w/8-120vac plugs (CAMLC8XT)The MLC-8X, MLC-8XT, and MLC-8DX Master Lighting Controllers are the best devices for controlling up to eight 1000 watt HID lights from one time-clock or controller. You run 40 amp, 240 volt power into the MLC-8, and all of the outlets are controlled by one 120 volt trigger cable. You can plug the trigger cable into a standard 24 hour timer, environmental controller or one of the C.A.P. HLC series of garden and lighting protection devices. The MLC-8X, MLC-8XT, and MLC-8DX have eight 120/240 volt style outlets which allows for running your ballasts at 120/240 volts without having to change out your ballast power cords. The MLC-8XT has an integrated timer that allows you to control your MLC with the built-in time clock. The MLC-8DX has dual trigger cables to split 2 series of 4 lights. The MLC-8X's are rated for 40 amps @ 120/240 volts. Manufacturer's Product Information MSRP each $234.95 UPC817205010273 Dimensions5.9 x 3.3 x 5.4 Case Quantity1|http://www.horticulturesource.com/hydrofarm-master-light-controller-40-amp-240vac-w-8-120vac-plugs-p17701/|http://www.horticulturesource.com/images/CAMLC8XT.jpg|159.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CANFT1|17702|Non-Adjustable Timer, Factory Settings, 1 Min On/4 Min Off, 15 Amp@120vac|C.A.P. (Custom Automated Products) Non-Adjustable Timer, Factory Settings, 1 Min On/4 Min Off, 15 Amp@120vac (CANFT1)The NFT series of preset recycling timers are the simplest devices available for turning a device ON and OFF at precise intervals. Manufacturer's Product Information MSRP each $71.95 UPC817205010280 Dimensions5.8 x 3.3 x 5.3 Case Quantity1|http://www.horticulturesource.com/hydrofarm-non-adjustable-timer-factory-settings-1-min-on-4-min-off-15-amp-120vac-p17702/|http://www.horticulturesource.com/images/CANFT1.jpg|37.3200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CANFT2|17703|Non-Adjustable Timer, Factory Settings, 3 Min On/5 Min Off, 15 Amp@120vac|C.A.P. (Custom Automated Products) Non-Adjustable Timer, Factory Settings, 3 Min On/5 Min Off, 15 Amp@120vac (CANFT2)The NFT series of preset recycling timers are the simplest devices available for turning a device ON and OFF at precise intervals. Manufacturer's Product Information MSRP each $71.95 UPC051000101266 Dimensions8.2 x 3.7 x 3.9 Case Quantity1|http://www.horticulturesource.com/hydrofarm-non-adjustable-timer-factory-settings-3-min-on-5-min-off-15-amp-120vac-p17703/|http://www.horticulturesource.com/images/CANFT2.jpg|48.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|hf-DS85|18004|Flip Flop Box, 10 in 20 out|Horti Control Flip Flop Box, 10 in 20 out (DS85)The LF series Ballast Switching Controller allows you to expand your growing area without having to increase power requirements or purchase additional ballasts. All you need is an additional Reflector and Bulb for each ballast in your system.andnbsp;Expand your growing area without increasing power requirements.Double your yields!Use 2 or 4 bulbs on one ballast! (not simultaneously)Maximize available power by using all 24 hours of the day!Run lights in several different staggered configurations.Saves energy by using less ballasts!No need to run additional power circuits.Works with magnetic core and digital ballasts.Plug and play with most popular lighting systems.Piggyback Trigger cable allows daisy chaining additional controllers.Available in 2,4,6,8,10,20 ballast configurations.Heavy duty aluminum chassis won't rust.Made in the USA!ETL Listed Two year hassle free warranty!andnbsp; Manufacturer's Product Information MSRP each $1148.95 UPC851581003115 Dimensions12 x 12 x 48 Case Quantity1|http://www.horticulturesource.com/horti-control-flip-flop-box-10-in-20-out-p18004/|http://www.horticulturesource.com/images/DS85_3.jpg|758.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|hf-DS86|18005|Flip Flop Box, 20 in 40 out|Horti Control Flip Flop Box, 20 in 40 out (DS86)The LF series Ballast Switching Controller allows you to expand your growing area without having to increase power requirements or purchase additional ballasts. All you need is an additional Reflector and Bulb for each ballast in your system.andnbsp;Expand your growing area without increasing power requirements.Double your yields!Use 2 or 4 bulbs on one ballast! (not simultaneously)Maximize available power by using all 24 hours of the day!Run lights in several different staggered configurations.Saves energy by using less ballasts!No need to run additional power circuits.Works with magnetic core and digital ballasts.Plug and play with most popular lighting systems.Piggyback Trigger cable allows daisy chaining additional controllers.Available in 2,4,6,8,10,20 ballast configurations.Heavy duty aluminum chassis won't rust.Made in the USA!ETL Listed Five year hassle free warranty!andnbsp; Manufacturer's Product Information MSRP each $2298.95 UPC817205011713 Case Quantity1|http://www.horticulturesource.com/horti-control-flip-flop-box-20-in-40-out-p18005/|http://www.horticulturesource.com/images/DS86.jpg|1517.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-QFP2|20377|Quick Flip, 2 Light Controller|C.A.P. (Custom Automated Products) Quick Flip, 2 Light Controller (QFP2)Quick Flips are a revolutionary lighting relay that provides the user to safely switch one ballast to run two lights, expanding your growing area without an additional ballast equipment cost or power requirements.The interlocking modular design allows the user to build a custom ballast flipping combination. This allows the user to run up to 20 Quick Flip modules controlling 20 ballasts, running 40 lights (not simultaneously.) Upgrading the number of Quick Flips is easy, simply use the 120v daisy chain cord to coordinate your custom configuration between each light with one or multiple lighting timing cycles.Maintenance and downtime is greatly reduced with the Quick Flips unique design by allowing the user to change out a single relay. Gone are the days of shutting down your complete system for maintenance because of 1 bad relay. Manufacturer's Product Information MSRP each $94.98 UPC812138010062 Dimensions18 x 3.25 x 7 Case Quantity1|http://www.horticulturesource.com/hydrofarm-quick-flip-2-light-controller-p20377/|http://www.horticulturesource.com/images/QFP2.jpg|64.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||706103|21261|Lightspeed Controller FLIP 20 Lighting Flip Box|Lightspeed Controller FLIP 20 Lighting Flip BoxLightspeed Flip 20 Lighting Controller powered by Allen Bradley. Automated 10 ballast, 20 light switching unit, allows you to run 20 lights from 10 ballasts. Works with ballasts plugged into any voltage. Heavy duty Lightspeed construction, these units are built to last! Can be used with any 120V timer. Save money on ballasts and use 10 ballasts to run 20 lights! Optional 240V timer outlet.|http://www.horticulturesource.com/lightspeed-controller-flip-20-lighting-flip-box-p21261/|http://www.horticulturesource.com/images/706103.png|736.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||706102|21262|Lightspeed Controller FLIP 16 Lighting Flip Box|Lightspeed Controller FLIP 16 Lighting Flip BoxLightspeed Flip 16 Lighting Controller powered by Allen Bradley. Automated 8 ballast, 16 light switching unit, allows you to run 16 lights from 8 ballasts. Works with ballasts plugged into any voltage. Heavy duty Lightspeed construction, these units are built to last! Can be used with any 120V timer. Save money on ballasts and use 8 ballasts to run 16 lights! Optional 240V timer outlet. On Special no returns accepted.|http://www.horticulturesource.com/lightspeed-controller-flip-16-lighting-flip-box-p21262/|http://www.horticulturesource.com/images/706102.png|530.00|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||706101|21263|Lightspeed Controller FLIP 8 Lighting Flip Box|Lightspeed Controller FLIP 8 Lighting Flip BoxLightspeed Flip 8 Lighting Controller powered by Allen Bradley. Automated 4 ballast, 8 light switching unit, allows you to run 8 lights from 4 ballasts. Works with ballasts plugged into any voltage. Heavy duty Lightspeed construction, these units are built to last! Can be used with any 120V timer. Save money on ballasts and use 4 ballasts to run 8 lights! Optional 240V timer outlet.|http://www.horticulturesource.com/lightspeed-controller-flip-8-lighting-flip-box-p21263/|http://www.horticulturesource.com/images/706101.png|329.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||706100|21264|Lightspeed Controller FLIP 4 Lighting Flip Box|Lightspeed Controller FLIP 4 Lighting Flip BoxLightspeed Flip 4 Lighting Controller powered by Allen Bradley. Automated 2 ballasts, 4 lights switching unit, allows you to run 4 lights from 2 ballasts. Works with any ballasts plugged into any voltage. Heavy duty Lightspeed construction, these units are built to last! Can be used with any 120V timer. Save money on ballasts and use 2 ballasts to run 4 lights! Optional 240V timer outlet.|http://www.horticulturesource.com/lightspeed-controller-flip-4-lighting-flip-box-p21264/|http://www.horticulturesource.com/images/706100.png|197.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702621|21490|Titan Controls Hades 3 - Lighting Timer w/ High Temp Shut Off (24/Cs)|Titan Controls Hades 3 - Lighting Timer and High Temp Shut-OffAll in one digital lighting timer for use with trigger cord activated lighting systems! Set the preferred lighting schedule for a 24 hour period, then dial in the high temp limit and you're set to go! It even comes with a battery back-up in case of power failure and a 20 minute delay to avoid 'hot starts' that could damage your bulb. Plastic enclosure protects from rust, dust and moisture. 6 foot temperature probe is accurate to within 2 degrees F. 120 Volts/ 15 Amps/ 60 Hz.|http://www.horticulturesource.com/titan-controls-titan-controls-hades-3-lighting-timer-w-high-temp-shut-off-24-cs--p21490/|http://www.horticulturesource.com/images/702621.jpg|84.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702843|21577|Titan Controls Helios 18 - 12 Light 240 Volt Controller w/ Dual Trigger Cords (4/Cs)|Titan Controls Helios 18 - 12 Light 240V Controller with Dual Trigger CordsThis controller will run twelve (12) HID lights at 240 Volts. The only lighting controllers featuring industrial-grade ballast relays. Dual trigger cord sets allow the operator to run two separate light timing schedules. Removable front panel makes controller easy to wire into your power system. Universal outlets will accept either 120 or 240 Volt power cords. Durable 20 gauge powder coated steel enclosure. 80 Amps input power/60 Amps output power/240 Volts/60 Hz./12,000 Watts.|http://www.horticulturesource.com/titan-controls-titan-controls-helios-18-12-light-240-volt-controller-w-dual-trigger-cords-4-cs--p21577/|http://www.horticulturesource.com/images/702843.jpg|296.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906080|21628|Gavita Master Controller EL1|Gavita Master ControllersOur e-series ballasts no longer require a switchboard to be switched on and off and no longer need their own switch to dim or boost them. Now you can just touch a few buttons on your controller to be in complete control of all your connected ballasts at once. Our Master controllers do this, and much more! The Gavita EL controller series currently comprises of two models: The EL1 and EL2. Both feature auto-dim, auto-shutdown, sunrise/sunset and timer. The EL1 has one output channel, while the EL2 has 2 output channels and additional outputs for External Contactor Modules and alarm contacts. For one room without auxiliary equipment or alarm contacts, the EL1 is the best choice for you. If you require switched auxiliary equipment during lights on/off, alarm contacts and/or a 2 room 12/12 setup, the EL2 is most suitable.|http://www.horticulturesource.com/gavita-gavita-master-controller-el1-p21628/|http://www.horticulturesource.com/images/906080.jpg|203.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906081|21629|Gavita Master Controller EL2|Gavita Master ControllersOur e-series ballasts no longer require a switchboard to be switched on and off and no longer need their own switch to dim or boost them. Now you can just touch a few buttons on your controller to be in complete control of all your connected ballasts at once. Our Master controllers do this, and much more! The Gavita EL controller series currently comprises of two models: The EL1 and EL2. Both feature auto-dim, auto-shutdown, sunrise/sunset and timer. The EL1 has one output channel, while the EL2 has 2 output channels and additional outputs for External Contactor Modules and alarm contacts. For one room without auxiliary equipment or alarm contacts, the EL1 is the best choice for you. If you require switched auxiliary equipment during lights on/off, alarm contacts and/or a 2 room 12/12 setup, the EL2 is most suitable.|http://www.horticulturesource.com/gavita-gavita-master-controller-el2-p21629/|http://www.horticulturesource.com/images/906080.jpg|258.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702896|21986|Titan Controls - Spartan Series Recycle Adjustable Timer|The Recycle Adjustable Timer features: 1 minute to 60 minutes 'ON' time, 5 minute to 12 hour 'OFF' time, LED indicator light, and adjustable 'ON' modes for day, night or both use. For use with pumps, fans or CO2 systems. Housed in a rust, dust and water resistant plastic chassis, this controller will function in the toughest environments. Ratings: 12 Amp/120 Volt/60 Hz.|http://www.horticulturesource.com/titan-controls-titan-controls-spartan-series-recycle-adjustable-timer-p21986/|http://www.horticulturesource.com/images/702896.jpg|49.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703208|22509|Sentinel GPS BLC-4 Basic Lighting Controller 4 Outlet|Run up to four (4) lights at 240 volts, maximum 4000 watts. Removable front access panel makes controller easy to wire to existing power system. Four (4) Universal outlets for ballasts. Includes heavy duty mounting bracket. RoHS compliant for environmental friendliness. 14 ft (4.5m) 120v trigger cable for easy setup and operation. Features durable construction built to withstand high impacts and provide years of reliable performance. 240 Volts/20 Amps/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-blc-4-basic-lighting-controller-4-outlet-p22509/|http://www.horticulturesource.com/images/703208.jpg|85.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703210|22510|Sentinel GPS BLC-8 Basic Lighting Controller 8 Outlet|Run up to eight (8) lights at 240 volts, maximum 8000 watts. Removable front access panel makes controller easy to wire to existing power system. Eight Universal outlets for ballasts. RoHS compliant for environmental friendliness. Includes heavy duty mounting bracket. 14 ft (4.5m) 120V trigger cable for easy setup and operation. Features durable construction built to withstand high impacts and provide years of reliable performance. 240 Volts/20 Amps x 2/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-blc-8-basic-lighting-controller-8-outlet-p22510/|http://www.horticulturesource.com/images/703210.jpg|138.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703228|22511|Sentinel GPS BRT-1aLR PB Basic Recycle Timer Low Range (Plug Box)|The BRT-1aLR Basic Recycle Timer - Low Range is designed to control equipment that has to be turned On and Off at precise, repeated intervals. Hydroponics, drip irrigation, aeroponics, CO2 injection - these are just many of the tasks the BRT-1a can control. The BRT-1a features a readily visible switch to alternate between day or night or continuous operation making it easy for the end user to differentiate which mode it is operating in. Easy-to-read dials make programming On and Off time settings uncomplicated. The (3) function LEDs let users know if the timer has main power, if the timer is in operation, as well as whether the timer is sensing day or night.|http://www.horticulturesource.com/sentinel-sentinel-gps-brt-1alr-pb-basic-recycle-timer-low-range-plug-box--p22511/|http://www.horticulturesource.com/images/703228.jpg|46.0900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703230|22512|Sentinel GPS BRT-1aLR WM Basic Recycle Timer Low Range (Wall Mount)|The BRT-1aLR Basic Recycle Timer - Low Range is designed to control equipment that has to be turned On and Off at precise, repeated intervals. Hydroponics, drip irrigation, aeroponics, CO2 injection - these are just many of the tasks the BRT-1a can control. The BRT-1a features a readily visible switch to alternate between day or night or continuous operation making it easy for the end user to differentiate which mode it is operating in. Easy-to-read dials make programming On and Off time settings uncomplicated. The (3) function LEDs let users know if the timer has main power, if the timer is in operation, as well as whether the timer is sensing day or night.|http://www.horticulturesource.com/sentinel-sentinel-gps-brt-1alr-wm-basic-recycle-timer-low-range-wall-mount--p22512/|http://www.horticulturesource.com/images/703228.jpg|55.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703232|22519|Sentinel GPS BRT-1aHR PB Basic Recycle Timer High Range (Plug Box)|The BRT-1aHR Basic Recycle Timer - High Range is designed to control equipment that has to be turned On and Off at precise, repeated intervals. Hydroponics, drip irrigation, aeroponics, CO2 injection - these are just many of the tasks the BRT-1a can control. The BRT-1a features a readily visible switch to alternate between day or night or continuous operation making it easy for the end user to differentiate which mode it is operating in. Easy-to-read dials make programming On and Off time settings uncomplicated. The (3) function LEDs let users know if the timer has main power, if the timer is in operation, as well as whether the timer is sensing day or night.|http://www.horticulturesource.com/sentinel-sentinel-gps-brt-1ahr-pb-basic-recycle-timer-high-range-plug-box--p22519/|http://www.horticulturesource.com/images/703232.jpg|46.0900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703234|22520|Sentinel GPS BRT-1aHR WM Basic Recycle Timer High Range (Wall Mount)|The BRT-1aHR Basic Recycle Timer - High Range is designed to control equipment that has to be turned On and Off at precise, repeated intervals. Hydroponics, drip irrigation, aeroponics, CO2 injection - these are just many of the tasks the BRT-1a can control. The BRT-1a features a readily visible switch to alternate between day or night or continuous operation making it easy for the end user to differentiate which mode it is operating in. Easy-to-read dials make programming On and Off time settings uncomplicated. The (3) function LEDs let users know if the timer has main power, if the timer is in operation, as well as whether the timer is sensing day or night.|http://www.horticulturesource.com/sentinel-sentinel-gps-brt-1ahr-wm-basic-recycle-timer-high-range-wall-mount--p22520/|http://www.horticulturesource.com/images/703232.jpg|55.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|hf-DS81|22937|Flip Flop Box, 2 in 4 out|The LF series Ballast Switching Controller allows you to expand your growing area without having to increase power requirements or purchase additional ballasts. All you need is an additional Reflector and Bulb for each ballast in your system.andnbsp;Expand your growing area without increasing power requirements.Double your yields!Use 2 or 4 bulbs on one ballast! (not simultaneously)Maximize available power by using all 24 hours of the day!Run lights in several different staggered configurations.Saves energy by using less ballasts!No need to run additional power circuits.Works with magnetic core and digital ballasts.Plug and play with most popular lighting systems.Piggyback Trigger cable allows daisy chaining additional controllers.Available in 2,4,6,8,10,20 ballast configurations.Heavy duty aluminum chassis won't rust.Made in the USA!ETL Listedandnbsp;Five year hassle free warranty!|http://www.horticulturesource.com/horti-control-flip-flop-box-2-in-4-out-p22937/|http://www.horticulturesource.com/images/DS81.jpg|197.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Horti-Control|hf-DS82|22938|Flip Flop Box, 4 in 8 out|The LF series Ballast Switching Controller allows you to expand your growing area without having to increase power requirements or purchase additional ballasts. All you need is an additional Reflector and Bulb for each ballast in your system.andnbsp;Expand your growing area without increasing power requirements.Double your yields!Use 2 or 4 bulbs on one ballast! (not simultaneously)Maximize available power by using all 24 hours of the day!Run lights in several different staggered configurations.Saves energy by using less ballasts!No need to run additional power circuits.Works with magnetic core and digital ballasts.Plug and play with most popular lighting systems.Piggyback Trigger cable allows daisy chaining additional controllers.Available in 2,4,6,8,10,20 ballast configurations.Heavy duty aluminum chassis won't rust.Made in the USA!ETL Listedandnbsp;Five year hassle free warranty!|http://www.horticulturesource.com/horti-control-flip-flop-box-4-in-8-out-p22938/|http://www.horticulturesource.com/images/DS82.jpg|362.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703202|23012|Sentinel GPS HPLC-4T High Power Lighting Controller 4 Outlet with Integrated Timer|Run up to eight (8) lights at 240 volts, maximum 8000 watts. Removable rear access panel makes controller easy to wire to existing power system. Convenient front panel On/Off switch. ETL listed to UL 508 STD for commercial use. Eight (8) NEMA 6-15 outlets for ballasts. RoHS compliant for environmental friendliness. Dual 14 ft (4.5m) 120V trigger cables for easy setup and operation. The HPLC-8 controller is ETL listed in the USA and Canada, and RoHS compliant. Features durable construction built to withstand high impacts and provide years of reliable performance. 240 Volts/20 Amps x 2/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-hplc-4t-high-power-lighting-controller-4-outlet-with-integrated-timer-p23012/|http://www.horticulturesource.com/images/703202.jpg|138.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703206|23013|Sentinel GPS HPLC-8T High Power Lighting Controller 8 Outlet with Integrated Timer|Run up to eight (8) lights at 240 volts, maximum 8000 watts. Removable rear access panel makes controller easy to wire to existing power system. Convenient front panel On/Off switch. ETL listed to UL 508 STD for commercial use. Eight (8) NEMA 6-15 outlets for ballasts. RoHS compliant for environmental friendliness. The HPLC-8T controller is ETL listed in the USA and Canada and RoHS compliant. Features durable construction built to withstand high impacts and provide years of reliable performance. Integrated 24 hour timer for easy setup and operation. 240 Volts/20 Aamps x 2/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-hplc-8t-high-power-lighting-controller-8-outlet-with-integrated-timer-p23013/|http://www.horticulturesource.com/images/703206.jpg|184.5300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703200|23014|Sentinel GPS HPLC-4 High Power Lighting Controller 4 Outlet|Run up to four (4) lights at 240 volts, maximum 4000 watts. Removable rear access panel makes controller easy to wire to existing power system. Convenient front panel On/Off switch. ETL listed to UL 508 STD for commercial use. Four (4) NEMA 6-15 outlets for ballasts. RoHS compliant for environmental friendliness. 14 ft (4.5m) 120V trigger cable for easy setup and operation. The HPLC-4 controller is ETL listed in the USA and Canada and RoHS compliant. Features durable construction built to withstand high impacts and provide years of reliable performance. 240 Volts/20 Amps/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-hplc-4-high-power-lighting-controller-4-outlet-p23014/|http://www.horticulturesource.com/images/703200.jpg|118.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Sentinel|703204|23015|Sentinel GPS HPLC-8 Dual Trigger High Power Lighting Controller 8 Outlet|Run up to four (4) lights at 240 volts, maximum 4000 watts. Removable rear access panel makes controller easy to wire to existing power system. Convenient front panel On/Off switch. ETL listed to UL 508 STD for commercial use. Four (4) NEMA 6-15 outlets for ballasts. RoHS compliant for environmental friendliness. The HPLC-4T controller is ETL listed in the USA and Canada, and RoHS compliant. Features durable construction built to withstand high impacts and provide years of reliable performance. Integrated 24 hour timer for easy setup and operation. 240 Volts/20 Amps/60 Hz.|http://www.horticulturesource.com/sentinel-sentinel-gps-hplc-8-dual-trigger-high-power-lighting-controller-8-outlet-p23015/|http://www.horticulturesource.com/images/703204.jpg|171.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-CAHLC|23191|C.A.P. (Custom Automated Products) Advanced HID Lighting Controller|Advanced HID Lamp Control - High temperature shutdown with selectable delay.* Combines all of the HLC1, HLC2, and HLC3 functions into one unit.* Selectable switch lets you choose whether to run the controller for temperature shutdown, on-delay, or both.* Temperature shuts off the outlet when chosen temperature is reached (and back on when it comes down 5 degrees). Perfect for protecting the crop in the event of overheating. * Delay provides a 15 minute delay between power up and the HLC outlet on the controller being energized. Eliminates "hot starts" after power interruptions to avoid damaging equipment.* Both does both functions - on delay and over temperature protection.* The updated controller features increased processor speed, better temperature sensors, higher quality circuit board components, and more robust engineering.* Rated for 15 amps max.andnbsp;Now Backed by HydrofarmUpgraded circuit boardsImproved performanceMore precise operationandnbsp;|http://www.horticulturesource.com/hydrofarm-c-a-p-custom-automated-products-advanced-hid-lighting-controller-p23191/|http://www.horticulturesource.com/images/CAHLC.jpg|59.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||TI002|23336|CT-1 Digital Recycle Timer|This is the best timer for smaller feed to waste grow systems I have seen yet. It is always showing the countdown of time, so you see how much time is left for the duration of feeding or how much time before the next feeding. It also has settings for feeding when lights are ON, OFF or both. Both ON and OFF times can be set from 10 seconds to 99 hours. The timer shown is programmed to turn ON the tank's feed pump for 30 seconds (duration of ON time) every 3 hours (interval of OFF time). This setting was chosen because the plants are in a big growth spurt. As the plant starts to pull in large amounts of water these time settings (both ON and OFF times of feed pump) will need to be changed.A photo sensor with user controlled day/night/both button, allows users to select the photo period that the Digital Short Cycle Timer will operate. A built in rechargeable Ni-MH backup battery stores timing settings in case of a power outage or failure. 120 Volts/15 Amps/60 Hz.Example of timer programming for the world's most advanced feeding system: Read more in the growers manual.|http://www.horticulturesource.com/ct-1-digital-recycle-timer-p23336/|http://www.horticulturesource.com/images/TI002-1.jpg|50.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906188|23373|Gavita ECM - Controller Cable 10 ft / 3 m|The ECM connect cable is used to connect an ECM1 (External Contactor Modules) to the Gavita Master Controller.|http://www.horticulturesource.com/gavita-gavita-ecm-controller-cable-10-ft-3-m-p23373/|http://www.horticulturesource.com/images/906188.jpg|4.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906180|23374|Gavita Interconnect Cables RJ14 / RJ14 2 ft / 60 cm|Gavita E-series interconnect cables are used to supply controller signal from ballast to additional ballasts (daisy chain), for use with the Gavita Master Controllers (EL1 and EL2). These come in 2, 5, 8 and 10 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-interconnect-cables-rj14-rj14-2-ft-60-cm-p23374/|http://www.horticulturesource.com/images/906180.jpg|2.8600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906182|23375|Gavita Interconnect Cables RJ14 / RJ14 8 ft / 240 cm|Gavita E-series interconnect cables are used to supply controller signal from ballast to additional ballasts (daisy chain), for use with the Gavita Master Controllers (EL1 and EL2). These come in 2, 5, 8 and 10 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-interconnect-cables-rj14-rj14-8-ft-240-cm-p23375/|http://www.horticulturesource.com/images/906180.jpg|4.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906183|23376|Gavita Interconnect Cables RJ14 / RJ14 10 ft / 300 cm|Gavita E-series interconnect cables are used to supply controller signal from ballast to additional ballasts (daisy chain), for use with the Gavita Master Controllers (EL1 and EL2). These come in 2, 5, 8 and 10 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-interconnect-cables-rj14-rj14-10-ft-300-cm-p23376/|http://www.horticulturesource.com/images/906183.jpg|5.0600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906190|23378|Gavita Power Supply US Version 120 Volt|Replacement 120V power supply for the Gavita Master Controller (EL1 and EL2).|http://www.horticulturesource.com/gavita-gavita-power-supply-us-version-120-volt-p23378/|http://www.horticulturesource.com/images/906190.jpg|13.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906187|23379|Gavita 3 Way RJ14 Cable Splitter|The 3 way cable splitter is needed to connect the Gavita Master Controller to your E-Series ballasts when running ballasts inline. Used with Gavita E-series interconnect cables.|http://www.horticulturesource.com/gavita-gavita-3-way-rj14-cable-splitter-p23379/|http://www.horticulturesource.com/images/906187.jpg|3.5800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906184|23380|Gavita Controller Cable RJ9 / RJ14 5 ft / 150 cm|Gavita Controller Cables attach the Gavita Master controller (EL1 and EL2) to the Gavita E-Series ballast. These come in 5, 16 and 25 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-controller-cable-rj9-rj14-5-ft-150-cm-p23380/|http://www.horticulturesource.com/images/906184.jpg|3.9600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906185|23381|Gavita Controller Cable RJ9 / RJ15 16 ft / 5 m|Gavita Controller Cables attach the Gavita Master controller (EL1 and EL2) to the Gavita E-Series ballast. These come in 5, 16 and 25 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-controller-cable-rj9-rj15-16-ft-5-m-p23381/|http://www.horticulturesource.com/images/906185.jpg|6.3300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906186|23382|Gavita Controller Cable RJ9 / RJ16 25 ft / 7.5 m|Gavita Controller Cables attach the Gavita Master controller (EL1 and EL2) to the Gavita E-Series ballast. These come in 5, 16 and 25 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-controller-cable-rj9-rj16-25-ft-7-5-m-p23382/|http://www.horticulturesource.com/images/906186.jpg|8.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906189|23383|Gavita Temperature Probe EL Controller Cable 5 m|Replacement temperature probe for the Gavita Master Controller (EL1 and EL2).|http://www.horticulturesource.com/gavita-gavita-temperature-probe-el-controller-cable-5-m-p23383/|http://www.horticulturesource.com/images/906189.jpg|12.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|703250|23520|Titan Controls Helios 200 Amp Commercial Series Lighting Controller - 480 Volt Three Phase Wiring|The Commercial Series 200 Amp Lighting Controller features: Allen-Bradley ballast rated industrial relays, Allen Bradley 30 Amp circuit breakers, dual trigger cord sets to activate lights, 0 - 30 second timing modules to delay HID bulb strikes. Available in single or three phase wiring configurations. It features a 20 gauge powder coated steel panel, convenient side wiring knock-outs, top power exit ports with knock-outs and are manufactured in the USA. Commercial Series panels are built to be Titan tough!|http://www.horticulturesource.com/titan-controls-titan-controls-helios-200-amp-commercial-series-lighting-controller-480-volt-three-phase-wiring-p23520/|http://www.horticulturesource.com/images/703250.jpg|2199.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702894|23707|Titan Controls - Spartan Series Repeat Cycle Timer|The Spartan Series Repeat Cycle Timer is an easy to use and reliable product. It features a 5 second to 30 minute ON time, a 5 second to 60 minute OFF time and adjustable modes for day, night or 24 hours. Designed to precisely control pumps, CO2 systems and fans. The Repeat Cycle Timer is cULus listed and features a durable plastic housing. 15 Amps maximum/120 Volts/60 Hz.|http://www.horticulturesource.com/titan-controls-titan-controls-spartan-series-repeat-cycle-timer-p23707/|http://www.horticulturesource.com/images/702894.jpg|26.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734117|23708|Titan Controls Apollo 17 Large LCD Display Digital Cycle Timer (20/Cs)|The Apollo 17 is a versatile digital timer that's simple to operate. It only takes four buttons to control the functions of the timer and features an extra-large easy to read LCD display. A variety of schedules can be programmed in minutes and hours using 16 different ON and OFF schedules. Internal battery backup feature saves settings in case of a power failure. The Apollo 17 may be used to control CO2, fan, pump, light mover, etc. Plastic chassis resists dust, rust and moisture. 15 Amps maximum/120 Volts/60 Hz. Not for use with electronic/digital ballasts.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-17-large-lcd-display-digital-cycle-timer-20-cs--p23708/|http://www.horticulturesource.com/images/734117.jpg|15.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734116|23709|Titan Controls Apollo 16 Medium LCD Display Digital Cycle Timer (20/Cs)|The Apollo 16 is a versatile digital timer that's simple to operate. It only takes four buttons to control the functions of the timer and features a large easy to read LCD display. A variety of schedules can be programmed in minutes and hours using 16 different ON and OFF schedules. Internal battery backup feature saves settings in case of a power failure. The Apollo 16 may be used to control CO2, fan, pump, light mover, etc. Plastic chassis resists dust, rust and moisture. 15 Amps maximum/120 Volts/60 Hz. Not for use with electronic/digital ballasts.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-16-medium-lcd-display-digital-cycle-timer-20-cs--p23709/|http://www.horticulturesource.com/images/734116.jpg|11.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906096|23784|Gavita Booster B200 (8/Cs)|The B200 Booster enhances the Master Controller EL1 and EL2, by expanding the number of fixtures controlled. The Gavita Master controllers are equipped with one port allowing growers to control up to 50 fixtures. Adding the B200 Booster, growers can expand their controller to four ports allowing control of up to 200 fixtures. Horticulturists can add additional boosters to expand their systems by 400 or 600 fixtures per controller.|http://www.horticulturesource.com/gavita-gavita-booster-b200-8-cs--p23784/|http://www.horticulturesource.com/images/906096.jpg|143.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906196|23795|Gavita Temperature Probe EL Controller Cable 96 ft / 30 m|Use these cables as a replacement or an extension for the temperature probe on the Gavita Master Controller EL1 and EL2. Choose from 16 ft/5 m or 96 ft/30 m.|http://www.horticulturesource.com/gavita-gavita-temperature-probe-el-controller-cable-96-ft-30-m-p23795/|http://www.horticulturesource.com/images/906196.jpg|20.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|HydroFarm|hf-APDPX1|24011|Autopilot PX1 Digital Lighting Controller|The Autopilot PX1 Digital Lighting Controller from Hydrofarm provides centralized, dual-zone digital control of your DE lighting, allowing you to switch, dim and boost multiple USB-compatible Hydrofarm ballasts at once-up to 256 in each of two independent zones for a total capacity of 512 ballasts. The trunk-line cable connections ensure perfect communication between the controller and all ballasts in the chain.andnbsp;The PX1 has two dedicated temperature sensors-one for each zone-that provide real-time data for automated temperature-based dimming, as well as a high temperature shutdown feature that protects your garden while you're away. andnbsp;The PX1 replaces traditional analog lighting relays, and eliminates inrush current. Each of its dual zones provides precise and independent: andnbsp;Photoperiod timing to control light and dark cyclesWattage output control, which allows users to control the intensity of the light being emitted from fixturesAuto-dimming when temperature exceeds set pointsEmergency auto-shutdown of lights upon user-defined overtemperature eventsConfigurable restrike delay times, which eliminates lamp-damaging hot startsSunrise/sunset simulation settings, which provide a gradual ramp-up and down at both ends of your photoperiodandnbsp;Includes 2 - 20' temperature probesincludes 8' 100v-240v 50/60hz power adapterandnbsp;andnbsp;The PX1 Digital Lighting Controller is easy to set up, and is compact and lightweight. It is a true digital ballast interface that makes multiple-ballast control easy and affordable to achieve. It is simply more powerful, more reliable, and more capable than competing controllers. The PX1 is designed to work with any Phantom or Hydrofarm ballasts with USB connectivity, and are ideally paired with PARsource DE reflectors and Agrosun DE HPS lamps.andnbsp;(*RJ12 connection cables and splitterandnbsp;are included in the ballast box)NOTE: Regarding the Autopilot PX1 programming. We would like to clarify the setup and programming details. After the set points are programmed into Zone A and or Zone B and saved, the PX1 viewing screen must be set to the Status Display Page (shown below) for normal operation. If the display is left on any page other than the Status Display Page, the PX1 will function in idle mode and will not operate the user-programmed settings.Always return to the Status Display Screen (Run Mode) for normal operation.|http://www.horticulturesource.com/hydrofarm-autopilot-px1-digital-lighting-controller-p24011/|http://www.horticulturesource.com/images/APDPX1.jpg|206.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70500|24046|Powerbox DPC-24000BT (Blue Tooth)|This unit has everything you need to run up to 24 1,000 Watt lights, plus accessories at 120V. Best of all, this unit contains our exclusive new 6-Channel Timer, which allows you to control outlets in six separate zones, making this the most versatile lighting controller available on the market.Main circuit protection is provided by a 150A circuit breaker. Additional protection is provided by mini circuit breakers that protect each set of outlets. The breakers on the 240V outlets (green) can also act as switches to individually switch outlets off.Designed and manufactured in California from the best industrial-grade components, the DPC-24000 is currently pending ETL/UL/CAN/CSA Approvals.Setup is fast and easy. You can wire this unit directly to your main power source with heavy-duty terminal lugs that allow you to connect up to 0AWG wires directly to the unit, with easy access by removing the rear panel. There are keyhole tabs so you can easily mount the unit to the wall.There are a total of TWENTY FOUR NEMA type 6-15 240V outlets to power your lights, and 8 NEMA type 5-15 outlets to run your light-duty accessories. Our exclusive 6-Channel Timer allows you to control the power outlets in zones - you get control over 4 independent zones of (6) 240V outlets, 2 independent zones of (3) 120V outlets, and there are 2 constant 120V outlets.The DPC-24000 also has an iPhone App! By downloading the FREE app from the AppStore, you can control the DPC-24000 from your iPhone via BlueTooth Smart wireless technology. This allows easy programming, monitoring, and configuration of this unit, without having to be right in front of it.Safe, quick to install, and easy to use. Don't even consider plugging your expensive gear into a cheap controller. Lighting requires more power than anything else in your garden, so when safety and reliability matter, Powerbox is your only choice.andnbsp;FEATURES:andnbsp;150A Main Capacity.Protection tabs to prevent accidental breaker shutoff.Mini-breakers to protect outlet banks individually.6-Channel digital timer allows control of outlets in independent banks.Battery backup to store timer programs during power outages for up to a year.Twenty Four NEMA type 6-15 240-volt outlet receptacles.Eight NEMA type 5-15 120-volt outlet receptacles.BlueTooth Smart Enabled.iPhone App for controlling unit from your iPhone.Optional Accessory Ports allow use with other controllers, like a high-temp shutoff.Heavy-duty terminal lugs for direct-wiring up to 0AWG cable.Conduit/cable entry allows for up to 1.5" cable or conduit.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs for easy mounting to wall studs.INPUT: 240VAC, Rated for 150A, 4-Wire Connection.Three Phase compatible models available.ETL, UL and CAN/CSA Approvals Pending.Designed and manufactured in California.andnbsp;|http://www.horticulturesource.com/powerbox-powerbox-dpc-24000bt-blue-tooth--p24046/|http://www.horticulturesource.com/images/PB70500.jpg|1649.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70400|24047|Powerbox DPC-12000-D-60A-4HW (Dual, Hardwired)|The Powerbox DPC-12000-D is a 12-outlet, dual zone HID lighting controller. Each zone of six 240V outlets is controlled by its own trigger cord (user-supplied timer is required).You get the ultimate in protection, thanks to an advanced microprocessor-controlled GFCI main circuit breaker that can sense a wide variety of dangerous conditions on downstream loads and instantaneously de-energize all connected devices, helping prevent fire and electrocution.Designed and manufactured in California from the best industrial-grade components, the DPC-12000-D is ETL Listed, UL Approved and CAN/CSA Approved.Setup is fast and easy. Plug directly in to a 240-volt range-type outlet (NEMA type 14-50r) to be up-and-running in minutes, or hardwire directly to your panel. Rated for continuous capacity, there are 50 Amp and 60 Amp versions available.There are a total of TWELVE NEMA type 6-15 240V outlets to power your lights, and 6 NEMA type 5-15 120V outlets to run your light-duty accessories. The 120V outlets are wired for constant power. LED status lights show that protection is active and status of light cycles.andnbsp;FEATURES:Microprocessor-controlled main GFCI circuit breaker helps prevent fire andamp; electrocution.Protection tabs to prevent accidental breaker shutoff.Dual zones allow you to run two separate environments.Twelve NEMA type 6-15 240-volt outlet receptacles.Six NEMA type 5-15 120-volt outlet receptacles.120V Trigger Cords activate outlet zones.Four foot main power cord, with custom lengths available.Plug andamp; Play into 4-prong range-type outlet (NEMA 14-50r), or hardwire to panel.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs 16" on center for easy mounting to wall studs.INPUT: 240VAC, Rated for 50A, or 60A at 240V, 4-Wire Connection.Three Phase compatible models available.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.|http://www.horticulturesource.com/powerbox-powerbox-dpc-12000-d-60a-4hw-dual-hardwired--p24047/|http://www.horticulturesource.com/images/PB70400.jpg|591.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70380|24048|Powerbox DPC-15000TD-60A-4HW (Time Delay, Hardwired)|For larger operations running 10 lights, the Powerbox DPC-15000TD is your top choice. This model has all of the features you need to keep your lights running safely and at peak efficiency, plus you get a special Time Delay feature that extends the life of your bulbs by allowing them to cool down completely prior to restarting, after a power outage.You get the ultimate in protection, thanks to a microprocessor-controlled GFCI main circuit breaker that can sense a wide variety of dangerous conditions on downstream loads and instantaneously de-energize all connected devices, helping to prevent things like fire and electrocution. Plus you get features like a digital ammeter to monitor load usage and a digital timer to control light cycles.Designed and manufactured in California from the best industrial-grade components, the DPC-15000TD is ETL Listed, UL Approved and CAN/CSA Approved.Setup is fast and easy. Plug directly in to a 240-volt range-type outlet (NEMA type 14-50r) to be up-and-running in minutes, or hardwire directly to your panel. Rated for continuous capacity, there are 50 Amp and 60 Amp versions available.There are a total of TEN NEMA type 6-15 240V outlets to power your lights, and 5 NEMA type 5-15 outlets to run your light-duty accessories. A digital timer with battery backup controls light cycles. An optional trigger cord port allows other controllers to override the timer and control the Powerbox directly.andnbsp;FEATURES:Microprocessor-controlled main GFCI circuit breaker helps prevent fire andamp; electrocution.Protection tabs to prevent accidental breaker shutoff.Time Delay feature to prevent hot bulb starts after a power outage.Digital ammeter shows load usage in real time.Programmable digital timer to control light cycles.Battery backup to store timer programs during power outages.Ten NEMA type 6-15 240-volt outlet receptaclesFive NEMA type 5-15 120-volt outlet receptaclesTrigger Cord Port allows use of an optional trigger cord to override the built-in timer.Optional Accessory Port allows use with other controllers, like a high-temp shutoff.Four foot main power cord, with custom lengths available.Plug andamp; Play into 4-prong range-type outlet (NEMA 14-50r), or hardwire to panel.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs 16" on center for easy mounting to wall studs.INPUT: 240VAC, Rated for 50A, or 60A at 240V, 4-Wire Connection.Three Phase compatible models available.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000td-60a-4hw-time-delay-hardwired--p24048/|http://www.horticulturesource.com/images/PB70380.jpg|692.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70360|24049|Powerbox DPC-15000-60A-4HW (Hardwired)|When you are running lights in increments of 10, the Powerbox DPC-15000 is our top-selling model. This model has all of the features you need to keep your lights running safely and at peak efficiency.You get the ultimate in protection, thanks to a microprocessor-controlled GFCI main circuit breaker that can sense a wide variety of dangerous conditions on downstream loads and instantaneously de-energize all connected devices, helping to prevent things like fire and electrocution. Plus you get features like a digital ammeter to monitor load usage and a digital timer to control light cycles.Designed and manufactured in California from the best industrial-grade components, the DPC-15000 is ETL Listed, UL Approved and CAN/CSA Approved.Setup is fast and easy. Plug directly in to a 240-volt range-type outlet (NEMA type 14-50r) to be up-and-running in minutes, or hardwire directly to your panel. Rated for continuous capacity, there are 50 Amp and 60 Amp versions available.There are a total of TEN NEMA type 6-15 240V outlets to power your lights, and 5 NEMA type 5-15 outlets to run your light-duty accessories. A digital timer with battery backup controls light cycles. An optional trigger cord port allows other controllers to override the timer and control the Powerbox directly.Safe, quick to install, and easy to use. Don't even consider plugging your expensive gear into a cheap controller. Lighting requires more power than anything else in your garden, so when safety and reliability matter, Powerbox is your only choice.andnbsp;FEATURES:Microprocessor-controlled main GFCI circuit breaker helps prevent fire andamp; electrocution.Protection tabs to prevent accidental breaker shutoff.Digital ammeter shows load usage in real time.Programmable digital timer to control light cycles.Battery backup to store timer programs during power outages.Ten NEMA type 6-15 240-volt outlet receptaclesFive NEMA type 5-15 120-volt outlet receptaclesTrigger Cord Port allows use of an optional trigger cord to override the built-in timer.Optional Accessory Port allows use with other controllers, like a high-temp shutoff.Four foot main power cord, with custom lengths available.Plug andamp; Play into 4-prong range-type outlet (NEMA 14-50r), or hardwire to panel.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs 16" on center for easy mounting to wall studs.INPUT: 240VAC, Rated for 50A, or 60A at 240V, 4-Wire Connection.Three Phase compatible models available.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000-60a-4hw-hardwired--p24049/|http://www.horticulturesource.com/images/PB70360.jpg|613.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70320|24050|Powerbox DPC-15000TD-50A-4P (Time Delay, Plug and Play)|For larger operations running 10 lights, the Powerbox DPC-15000TD is your top choice. This model has all of the features you need to keep your lights running safely and at peak efficiency, plus you get a special Time Delay feature that extends the life of your bulbs by allowing them to cool down completely prior to restarting, after a power outage.You get the ultimate in protection, thanks to a microprocessor-controlled GFCI main circuit breaker that can sense a wide variety of dangerous conditions on downstream loads and instantaneously de-energize all connected devices, helping to prevent things like fire and electrocution. Plus you get features like a digital ammeter to monitor load usage and a digital timer to control light cycles.Designed and manufactured in California from the best industrial-grade components, the DPC-15000TD is ETL Listed, UL Approved and CAN/CSA Approved.Setup is fast and easy. Plug directly in to a 240-volt range-type outlet (NEMA type 14-50r) to be up-and-running in minutes, or hardwire directly to your panel. Rated for continuous capacity, there are 50 Amp and 60 Amp versions available.There are a total of TEN NEMA type 6-15 240V outlets to power your lights, and 5 NEMA type 5-15 outlets to run your light-duty accessories. A digital timer with battery backup controls light cycles. An optional trigger cord port allows other controllers to override the timer and control the Powerbox directly.andnbsp;FEATURES:andnbsp;Microprocessor-controlled main GFCI circuit breaker helps prevent fire andamp; electrocution.Protection tabs to prevent accidental breaker shutoff.Time Delay feature to prevent hot bulb starts after a power outage.Digital ammeter shows load usage in real time.Programmable digital timer to control light cycles.Battery backup to store timer programs during power outages.Ten NEMA type 6-15 240-volt outlet receptaclesFive NEMA type 5-15 120-volt outlet receptaclesTrigger Cord Port allows use of an optional trigger cord to override the built-in timer.Optional Accessory Port allows use with other controllers, like a high-temp shutoff.Four foot main power cord, with custom lengths available.Plug andamp; Play into 4-prong range-type outlet (NEMA 14-50r), or hardwire to panel.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs 16" on center for easy mounting to wall studs.INPUT: 240VAC, Rated for 50A, or 60A at 240V, 4-Wire Connection.Three Phase compatible models available.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.andnbsp;|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000td-50a-4p-time-delay-plug-play--p24050/|http://www.horticulturesource.com/images/PB70320.jpg|672.0900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70300|24051|Powerbox DPC-15000-50A-4P|When you are running lights in increments of 10, the Powerbox DPC-15000 is our top-selling model. This model has all of the features you need to keep your lights running safely and at peak efficiency.You get the ultimate in protection, thanks to a microprocessor-controlled GFCI main circuit breaker that can sense a wide variety of dangerous conditions on downstream loads and instantaneously de-energize all connected devices, helping to prevent things like fire and electrocution. Plus you get features like a digital ammeter to monitor load usage and a digital timer to control light cycles.Designed and manufactured in California from the best industrial-grade components, the DPC-15000 is ETL Listed, UL Approved and CAN/CSA Approved.Setup is fast and easy. Plug directly in to a 240-volt range-type outlet (NEMA type 14-50r) to be up-and-running in minutes, or hardwire directly to your panel. Rated for continuous capacity, there are 50 Amp and 60 Amp versions available.There are a total of TEN NEMA type 6-15 240V outlets to power your lights, and 5 NEMA type 5-15 outlets to run your light-duty accessories. A digital timer with battery backup controls light cycles. An optional trigger cord port allows other controllers to override the timer and control the Powerbox directly.Safe, quick to install, and easy to use. Don't even consider plugging your expensive gear into a cheap controller. Lighting requires more power than anything else in your garden, so when safety and reliability matter, Powerbox is your only choice.andnbsp;FEATURES:Microprocessor-controlled main GFCI circuit breaker helps prevent fire andamp; electrocution.Protection tabs to prevent accidental breaker shutoff.Digital ammeter shows load usage in real time.Programmable digital timer to control light cycles.Battery backup to store timer programs during power outages.Ten NEMA type 6-15 240-volt outlet receptaclesFive NEMA type 5-15 120-volt outlet receptaclesTrigger Cord Port allows use of an optional trigger cord to override the built-in timer.Optional Accessory Port allows use with other controllers, like a high-temp shutoff.Four foot main power cord, with custom lengths available.Plug andamp; Play into 4-prong range-type outlet (NEMA 14-50r), or hardwire to panel.Durable powder coated 14 gauge seamless steel enclosure.Keyhole tabs 16" on center for easy mounting to wall studs.INPUT: 240VAC, Rated for 50A, or 60A at 240V, 4-Wire Connection.Three Phase compatible models available.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.|http://www.horticulturesource.com/powerbox-powerbox-dpc-15000-50a-4p-p24051/|http://www.horticulturesource.com/images/PB70300.jpg|593.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70240|24052|Powerbox DPC-7500-120V-4P|When you need to run your equipment on 120V power, then the Powerbox DPC-7500-120V is the perfect choice! Running up to six devices at 120V has never been quicker or easier. This is a very popular model due to the unique fact that it connects to 240V power, but provides 120V output power. With a DPC-7500-120V, you can control up to SIX devices from one timer.Designed and hand-built in California from the finest materials, the DPC-7500-120V connects to 240V main power and provides 120V output power through its six 120V outlets. Total capacity is 60A continuous at 120V, or about 7,200 Watts.A special feature of this model is that you can control all six outlets with the built-in timer, or you can set the last two outlets to provide constant power and have the timer control only the first four outlets. This makes it possible to use just one controller to run two separate environments.You can plug directly into a 4-prong 240-volt dryer-type outlet to have your lights up-and-running in minutes, or you can hardwire a new circuit from your panel. The DPC-7500-120V is ETL Listed, UL Approved and CAN/CSA Approved. Mounting to the wall is easy, thanks to keyhole tabs, or you can place on a flat surface and the non-skid rubber feet will keep the unit from moving around. Constructed from heavy-gauge steel, the enclosure is built to withstand extreme environments. The baked-on power coated finish resists scratches and is easy to wipe clean. The built-in digital timer has a battery backup to store programs in the event of a power-failure.andnbsp;FEATURES:Heavy-duty construction with industrial-grade components.Programmable digital timer to control light cycles.Battery backup to store programs during power outages.Six NEMA type 5-15 120-volt outlet receptacles.Timer can control all six outlets, or the last two outlets are switchable to constant power.Optional trigger cord can override timer so other devices can control the Powerbox.Plug andamp; play into 4-prong dryer-type outlet, or hardwire.Three foot main power cord made of 8 gauge, highly flexible, finely stranded pure copper wire.Custom main cord lengths available.Durable powder coated seamless steel enclosure with no holes or visible screws.Keyhole tabs for easy mounting.Input: 240VAC, 30AOutput: 120VAC, 60AMust be installed with a properly rated main circuit breaker.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.andnbsp;|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-120v-4p-p24052/|http://www.horticulturesource.com/images/PB70240.jpg|277.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70220|24053|Powerbox DPC-7500-COMBO-4P|When you need a combination of 240V and 120V power in one controller, then the Powerbox DPC-7500-COMBO is the perfect choice! Running up to six devices has never been quicker or easier. This extremely versatile unit is one of our most popular models. With a DPC-7500-COMBO, you can control up to SIX devices from one timer.Designed and hand-built in California from the finest materials, the DPC-7500-COMBO connects to 240V main power and provides 240V output power through its four 240V outlets, and 120V power through its two 120V outlets. Total capacity is 30A continuous at 240V, or about 7,200 Watts.A special feature of this model is that you can control all six outlets with the built-in timer, or you can set the last two outlets to provide constant power and have the timer control only the first four outlets. This makes it possible to use just one controller to run two separate environments.You can plug directly into a 4-prong 240-volt dryer-type outlet to have your lights up-and-running in minutes, or you can hardwire a new circuit from your panel. The DPC-7500-COMBO is ETL Listed, UL Approved and CAN/CSA Approved. Mounting to the wall is easy, thanks to keyhole tabs, or you can place on a flat surface and the non-skid rubber feet will keep the unit from moving around. Constructed from heavy-gauge steel, the enclosure is built to withstand extreme environments. The baked-on power coated finish resists scratches and is easy to wipe clean. The built-in digital timer has a battery backup to store programs in the event of a power-failure.andnbsp;FEATURES:andnbsp;Heavy-duty construction with industrial-grade components.Programmable digital timer to control light cycles.Battery backup to store programs during power outages.Four NEMA type 6-15 240-volt outlet receptacles.Two NEMA type 5-15 120-volt outlet receptacles.Timer can control all six outlets, or the last two outlets are switchable to constant power.Optional trigger cord can override timer so other devices can control the Powerbox.Plug andamp; play into 4-prong dryer-type outlet, or hardwire.Three foot main power cord made of 8 gauge, highly flexible, finely stranded pure copper wire.Custom main cord lengths available.Durable powder coated seamless steel enclosure with no holes or visible screws.Keyhole tabs for easy mounting.Input: 240VAC, 30AOutput: 120/240VAC, 30AMust be installed with a properly rated main circuit breaker.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.Five-year warranty - Legendary Powerbox quality.andnbsp;|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-combo-4p-p24053/|http://www.horticulturesource.com/images/PB70220.jpg|269.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70200|24054|Powerbox DPC-7500-240V-4P|If you are setting up shop in a small space, then the Powerbox DPC-7500-240V is the perfect choice! Running up to six lights has never been quicker or easier. This extremely versatile unit is one of our most popular models. With a DPC-7500-240V, you can control up to SIX 1,000 watt lights from one timer.Designed and hand-built in California from the finest materials, the DPC-7500-240V connects to 240V main power and provides 240V output power through its six outlets. Total capacity is 30A continuous at 240V, or about 7,200 Watts.A special feature of this model is that you can control all six outlets with the built-in timer, or you can set the last two outlets to provide constant power and have the timer control only the first four outlets. This makes it possible to use just one controller to run two separate environments.You can plug directly into a 240-volt dryer-type outlet to have your lights up-and-running in minutes, or you can hardwire a new circuit from your panel. The DPC-7500-240V is ETL Listed, UL Approved and CAN/CSA Approved. Mounting to the wall is easy, thanks to keyhole tabs, or you can place on a flat surface and the non-skid rubber feet will keep the unit from moving around. Constructed from heavy-gauge steel, the enclosure is built to withstand extreme environments. The baked-on power coated finish resists scratches and is easy to wipe clean. The built-in digital timer has a battery backup to store programs in the event of a power-failure.andnbsp;FEATURES:Heavy-duty construction with industrial-grade components.Programmable digital timer to control light cycles.Battery backup to store programs during power outages.Six NEMA type 6-15 240-volt outlet receptacles.Timer can control all six outlets, or the last two outlets are switchable to constant power.Optional trigger cord can override timer so other devices can control the Powerbox.Plug andamp; play into 3 or 4-prong dryer-type outlet, or hardwire.Three foot main power cord made of 8 gauge, highly flexible, finely stranded pure copper wire.Custom main cord lengths available.Durable powder coated seamless steel enclosure with no holes or visible screws.Keyhole tabs for easy mounting.Input: 240VAC, 30AOutput: 240VAC, 30AMust be installed with a properly rated main circuit breaker.ETL Listed, UL Approved, CAN/CSA Approved.Designed and manufactured in California.|http://www.horticulturesource.com/powerbox-powerbox-dpc-7500-240v-4p-p24054/|http://www.horticulturesource.com/images/PB70200.jpg|265.0900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|hf-PB70100|24055|Powerbox DPC-4000-240V-4P|The DPC-4000, represents the ultimate in Powerbox quality, at an affordable price. Designed for the budget-conscious individual who will not sacrifice on quality, this lighting controller is a safe and reliable solution for running up to four lights.Designed and built in California from the same industrial-grade components as more expensive Powerbox models, the DPC-4000 connects to 240-volt main power and provides 240-volt output power for plugging in your lighting ballasts. With a DPC-4000, you can run up to FOUR 1,000 watt lights from one timer.This simple controller is also great when you need to quickly deploy multiple units in convenient locations around a large facility. Just install standard 240V dryer-type outlets at the desired locations and quickly plug in as many as you need. The modular design makes them easy to move around so you can reconfigure your space easily. They are easy to mount to wall studs with keyhole tabs, or set on a flat surface and non-skid rubber feet prevent the unit from moving around. Constructed from the same heavy-gauge steel as every Powerbox model, the enclosure is built to withstand harsh environments. The baked-on powder coated finish resists scratches and is easy to wipe clean.andnbsp;FEATURES:Heavy-duty construction with industrial-grade components.Programmable digital timer to control light cycles.Battery backup to store programs during power outages.Four NEMA type 6-15 240-volt outlet receptacles.All outlets are directly wired to lighting relay, no daisy-chaining.Plug andamp; play into 3 or 4-prong dryer-type outlet, or hardwire.Three foot main power cord made from finely stranded pure copper wire.Custom main cord lengths available.Durable powder coated seamless steel enclosure with no holes or visible screws.Keyhole tabs for easy mounting.Input: 240VAC, 30AOutput: 240VAC, 30AMust be installed with a properly rated main circuit breaker.Hand-built at our California factory.andnbsp;|http://www.horticulturesource.com/powerbox-powerbox-dpc-4000-240v-4p-p24055/|http://www.horticulturesource.com/images/PB70100.jpg|188.0900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Gavita|906181|24225|Gavita Interconnect Cables RJ14 / RJ14 5 ft / 150 cm|Gavita E-series interconnect cables are used to supply controller signal from ballast to additional ballasts (daisy chain), for use with the Gavita Master Controllers (EL1 and EL2). These come in 2, 5, 8 and 10 foot configurations to best fit your specific application.|http://www.horticulturesource.com/gavita-gavita-interconnect-cables-rj14-rj14-5-ft-150-cm-p24225/|http://www.horticulturesource.com/images/906181.jpg|3.33|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|PowerBox|702972|24247|Powerbox DPC-24000-BT|The Powerbox DPC-24000-BT is our largest and most advanced model so far. This unit has everything you need to run up to 24 1,000 Watt lights, plus accessories at 120V. Best of all, this unit contains our exclusive new 6-channel timer, which allows you to control outlets in six separate zones, making this the most versatile lighting controller available on the market. Main circuit protection is provided by a 150A circuit breaker. Additional protection is provided by mini circuit breakers that protect each set of outlets. The DPC-24000 also has an iPhone App! By downloading the FREE app from the AppStore, you can control the DPC-24000 from your iPhone via BlueTooth Smart wireless technology.|http://www.horticulturesource.com/powerbox-powerbox-dpc-24000-bt-p24247/|http://www.horticulturesource.com/images/702972.jpg|1647.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|702876|24274|Titan Controls Hades 2 Replacement Sensor|The Hades 2 controls up to two light banks up to 600 watts each via your lighting controller trigger cords, has a high temperature shut-off function to turn off your grow lights and also a hot start protection function to allow your lights to cool before re-striking. The recycle timer can be set to run in day only, night only or 24 hour mode. This controller has a 3 ft remote sensor to monitor temperature levels. Enclosure resists dust, rust and moisture. 15 Amps maximum/120 Volts/60 Hz. Patent Pending 29525627.|http://www.horticulturesource.com/titan-controls-titan-controls-hades-2-replacement-sensor-p24274/|http://www.horticulturesource.com/images/702876.jpg|34.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers||hf-CLW2000|24626|California Lightworks Solar System Controller|SOLAR SYSTEM 550 CONTROLLER Compact touch screen controller can connect to an unlimited number of SolarSystem 550 LED fixtures and offers 24-hour and week by week timer. The controller regulates three spectrum bands for best growth - automated sunrise/sunset, veg/bloom and seasonal programs. Built-in manual and automatic routines as well as fully user programmable modes.andnbsp;|http://www.horticulturesource.com/california-lightworks-solar-system-controller-p24626/|http://www.horticulturesource.com/images/CLW2000.jpg|179.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|Titan Controls|734175|25071|Titan Controls Apollo 18 Two Outlet Dual Schedule Digital Timer|The Apollo 18 has two separate timing schedules and can operate two different appliances simultaneously. It features 8 timing schedules per total day and the enclosure resists dust, rust and moisture in the garden environment. This precision digital timer provides the grower with the perfect timing solution to operate cloning machines, CO2 systems, pumps, fans or other 120 volt appliances. 120 Volts/15 Amps/60 Hz.|http://www.horticulturesource.com/titan-controls-titan-controls-apollo-18-two-outlet-dual-schedule-digital-timer-p25071/|http://www.horticulturesource.com/images/734175.jpg|12.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > Timers & Lighting Controllers|LTL Controls|dl-270016|26054|LTL Master 16 Lighting Controller|LTL Master 16 Lighting Control|http://www.horticulturesource.com/ltl-controls-ltl-master-16-lighting-controller-p26054/|http://www.horticulturesource.com/images/270016.jpg|450.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716037|1691|REPLACEMENT ELECTRODE REPLACEMENT FOR OAKTON BASIC WATERPROOF pH TESTER (35624-29)|Oaktonand#174; Basic pHTestrand#174; ELECTRODE REPLACEMENT FOR PH 2 NEW!Waterproof, dustproof andamp; floatsAutomatic Temperature Compensation (ATC)Replaceable electrode lets you reuse same meter bodyPush-button three-point calibration Hold function; auto-off; error messagesAuto buffer recognitionCertifiable to IP67 standardsSingle junction-1 to 15.0 pH Manufacturer's Product Information 2007 MSRP Each $64.95 Case Weight0.09 LB Case Dimensions1.5 x 1.5 x 3.25 IN Case Quantity1|http://www.horticulturesource.com/oakton-replacement-electrode-replacement-for-oakton-basic-waterproof-ph-tester-35624-29--p1691/|http://www.horticulturesource.com/images/716037.jpg|50.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716040|1692|REPLACEMENT ELECTRODE REPLACEMENT FOR OAKTON ULTRA BASIC WATERPROOF TDS and EC TESTERS TESTER (35661-17)|Oakton Ultra Basic TDSTestr REPLACEMENT ELECTRODE TDS/EC Push-button calibration and high 1% full scale accuracy!Waterproof, dust proof housing that floats is certifiable to IP67 standardsReplaceable sensor lets you reuse same meter body, saving you moneyAutomatic Temperature Compensation 0 - 1990 PPMHold function, Auto-OffOur waterproof microprocessor TDSTestr basic offers push-button calibration and 1% accuracy in a rugged waterproof housing. Never worry about losing your tester in a pond or tank Manufacturer's Product Information 2007 MSRP Each $60.95 Case Weight0.07 LB Case Dimensions1.5 x 1.5 x 3. IN Case Quantity1|http://www.horticulturesource.com/oakton-replacement-electrode-replacement-for-oakton-ultra-basic-waterproof-tds-ec-testers-tester-35661-17--p1692/|http://www.horticulturesource.com/images/716040.jpg|61.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716047|1693|REPLACEMENT ELECTRODE REPLACEMENT FOR OAKTON ULTRA BASIC WATERPROOF pH TESTER (35624-09)|Oakton Ultra Basic pHTestr ELECTRODE REP. FOR PH 1 and ULTR NEW!Waterproof, dustproof and floatsReplaceable electrode lets you reuse same meter body, saving you moneyPush-button one-point calibrationMicroprocessor-based auto buffer recognitionHold function; auto-off; error messagesCertifiable to IP67 standardsSingle junction-1 to 15.0 pH Manufacturer's Product Information 2007 MSRP Each $50.95 Case Weight0.09 LB Case Dimensions1.25 x 1.25 x 3. IN Case Quantity1|http://www.horticulturesource.com/oakton-replacement-electrode-replacement-for-oakton-ultra-basic-waterproof-ph-tester-35624-09--p1693/|http://www.horticulturesource.com/images/716045.jpg|70.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716046|1694|OAKTON WATERPROOF pH TESTER 10|Oakton Waterproof Double Junction pHTestrand#174; 10 Large Display WATERPROOF PH TESTER 10 Automatic Temperature Compensation (ATC)Push-button three-point calibrationMicroprocessor-basedAuto buffer recognitionHold functionCertifiable to IP67 standardspH range - 1.0 to 15.0 pHReplaceable double junction electrode... use Testr body many times over, which saves you money Manufacturer's Product Information 2007 MSRP Each $118.95 Case Weight0.45 LB Case Dimensions7.25 x 2.5 x 2. IN Case Quantity1|http://www.horticulturesource.com/oakton-oakton-waterproof-ph-tester-10-p1694/|http://www.horticulturesource.com/images/716046.jpg|93.5800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716048|1695|OAKTON WATERPROOF pH TESTER 30|Oakton Waterproof Dbl Junction pHTestrand#174; 30 w Temperature WATERPROOF PH TESTER 30 Dual Display of pH andamp; TemperatureHigh 0.01 pH accuracy Simultaneous pH and temperature (C) displaypH range - 1.0 to 15.0 pH Three point push-button calibrationDouble junction electrode ideal for dirty water, heavy sulfides and organicsIncreased reference gel volume offers significantly longer electrode lifeCertifiable to IP67 standardswaterproof and dustproof housing floatsReplaceable sensor lets you reuse same meter body, saving you moneyAutomatic temperature compensation Manufacturer's Product Information 2007 MSRP Each $147.95 Case Weight0.44 LB Case Dimensions7.25 x 2.5 x 2. IN Case Quantity1|http://www.horticulturesource.com/oakton-oakton-waterproof-ph-tester-30-p1695/|http://www.horticulturesource.com/images/716048.jpg|115.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716050|1696|ORIGINAL TRUNCHEON METER MEASURE EC AND PPM|Original Truncheonand#8482; Meter TRUNCHEON METER (EC/PPM) Features of this reliable meter include: EC, CF and ppm scales, factory calibrated, fully waterproof, auto turn on and off. It is powered by three standard AA batteries. There are no external switches or adjustment knobs. 5 year Bluelab Guarantee (1 year for probe). Manufacturer's Product Information 2007 MSRP Each $135 Case Weight0.53 LB Case Dimensions16.5 x 1.5 x 1.5 IN Case Quantity1|http://www.horticulturesource.com/bluelab-original-truncheon-meter-measure-ec-and-ppm-p1696/|http://www.horticulturesource.com/images/716050.jpg|92.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716053|1699|REPLACEMENT PROBE FOR pH TRUCHEAN METER|pH Truncheonand#8482; Meter PH TRUNCHEON REPLACEMENT PROBE With its easy to read illuminated display, one-touch calibration system, super clear instructions and no buttons to push, measuring pH just got a whole lot simpler. The flashing lights you love so much; the easiest calibration system ever; reliability only Bluelaband#174; products can provide; longest lasting probe on the market AND itand#39;s replaceable; auto on just like the Bluelaband#174; Truncheon; Automatic Temperature Compensation; a scale of 2.0pH - 10.9pH. 3 year Bluelaband#174; Guarantee (1 year for probe). Manufacturer's Product Information 2007 MSRP Each $108.95|http://www.horticulturesource.com/bluelab-replacement-probe-for-ph-truchean-meter-p1699/|http://www.horticulturesource.com/images/716053.JPG|87.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716054|1700|REPLACEMENT CONTACT RINGS FOR pH TRUCHEAN METER (3 PER PACK) Special Order|pH Truncheonand#8482; Meter PH TRUNCHEON CONTACT RINGS ( 3 PACK) With its easy to read illuminated display, one-touch calibration system, super clear instructions and no buttons to push, measuring pH just got a whole lot simpler. The flashing lights you love so much; the easiest calibration system ever; reliability only Bluelaband#174; products can provide; longest lasting probe on the market AND itand#39;s replaceable; auto on just like the Bluelaband#174; Truncheon; Automatic Temperature Compensation; a scale of 2.0pH - 10.9pH. 3 year Bluelaband#174; Guarantee (1 year for probe). Manufacturer's Product Information 2007 MSRP Each $10.95 Case Weight0.01 LB Case Dimensions4.75 x 1.5 x 0.25 IN Case Quantity1|http://www.horticulturesource.com/bluelab-replacement-contact-rings-for-ph-truchean-meter-3-per-pack-special-order-p1700/|http://www.horticulturesource.com/images/716053.JPG|144.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716105|1702|OAKTON ULTRA BASIC WATERPROOF pH TESTER|Oaktonand#174; Ultra Basic pHTestrand#174; OAKTON ULTRA BASIC PH WATERPRO NEW!Waterproof, dustproof and floatsReplaceable electrode lets you reuse same meter body, saving you moneyPush-button one-point calibrationMicroprocessor-based auto buffer recognitionHold function; auto-off; error messagesCertifiable to IP67 standardsSingle junction-1 to 15.0 pH Manufacturer's Product Information 2007 MSRP Each $74.95 Case Weight0.40 LB Case Dimensions7.5 x 2.5 x 2. IN Case Quantity1|http://www.horticulturesource.com/oakton-oakton-ultra-basic-waterproof-ph-tester-p1702/|http://www.horticulturesource.com/images/716105.jpg|57.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716107|1703|OAKTON ULTRA BASIC WATERPROOF TDS TESTER|Oakton Ultra Basic TDSTestr ULTRA BASIC TDS WATERPROOF TES Push-button calibration and high 1% full scale accuracy!Waterproof, dust proof housing that floats is certifiable to IP67 standardsReplaceable sensor lets you reuse same meter body, saving you moneyAutomatic Temperature Compensation 0 - 1990 PPMHold function, Auto-OffOur waterproof microprocessor TDSTestr basic offers push-button calibration and 1% accuracy in a rugged waterproof housing. Never worry about losing your tester in a pond or tank Manufacturer's Product Information 2007 MSRP Each $81.95 Case Weight0.39 LB Case Dimensions7.5 x 2.5 x 2. IN Case Quantity1|http://www.horticulturesource.com/oakton-oakton-ultra-basic-waterproof-tds-tester-p1703/|http://www.horticulturesource.com/images/716107.jpg|68.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716109|1704|OAKTON BASIC WATERPROOF pH TESTER|Oaktonand#174; Basic pHTestrand#174; OAKTON BASIC PH WATERPROOF TES NEW!Waterproof, dustproof andamp; floatsAutomatic Temperature Compensation (ATC)Replaceable electrode lets you reuse same meter bodyPush-button three-point calibration Hold function; auto-off; error messagesAuto buffer recognitionCertifiable to IP67 standardsSingle junction-1 to 15.0 pH Manufacturer's Product Information 2007 MSRP Each $88.95 Case Weight0.39 LB Case Dimensions7.5 x 2.5 x 2. IN Case Quantity1|http://www.horticulturesource.com/oakton-oakton-basic-waterproof-ph-tester-p1704/|http://www.horticulturesource.com/images/716109.jpg|68.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716310|1707|FH TRI-METER CONTINUOUS MONITOR #204 EC H/TEMPERATURE|Tri-Meter Continuous Monitor (EC H/Temp) TRI-METER(EC/PH/TEMP) #204 15/CASE This meter gives you the ability to monitor pH level, Nutrient Levels in EC and Nutrient Temperature.This continuous monitoring system requires no batteries, just plug it in to an AC wall receptacle and the meter will remain in a calibration mode for months. The Nutradip Tri-Meter, with automatic temperature compensation, is the best way of measuring the strength of nutrients in your water, pH, and monitoring temperature at the same time.2 year limited warranty on meter. 6 months limited warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $232.95 Case Weight2.00 LB Case Dimensions9.75 x 4.25 x 325. IN Case Quantity1|http://www.horticulturesource.com/fhd-future-harvest-development-fh-tri-meter-continuous-monitor-204-ec-ph-temperature-p1707/|http://www.horticulturesource.com/images/716310.jpg|156.1800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716315|1708|FH TRI-METER CONTINUOUS MONITOR #202 PPM H/TEMPERATURE|Tri-Meter Continuous Monitor (PPM H/Temp) TRI-METER(PPM/PH/TEMP) #202 15/CASE This meter gives you the ability to monitor pH level, Nutrient Levels in PPM and Nutrient Temperature.This continuous monitoring system requires no batteries, just plug it in to an AC wall receptacle and the meter will remain in a calibration mode for months. The Nutradip Tri-Meter, with automatic temperature compensation, is the best way of measuring the strength of nutrients in your water, pH, and monitoring temperature at the same time.2 year limited warranty on meter. 6 months limited warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $232.95 Case Weight2.00 LB Case Dimensions9.75 x 4.25 x 3.25 IN Case Quantity1|http://www.horticulturesource.com/fhd-future-harvest-development-fh-tri-meter-continuous-monitor-202-ppm-ph-temperature-p1708/|http://www.horticulturesource.com/images/716315.jpg|165.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Sun System / Sunlight Supply|716320|1709|FH TRI-METER REPLACEMENT PROBE - 3' CABLE|Tri-Meter Replacement Probe TRI-METER PH REPLACEMENT PROBE (3'CABLE Replacement probe for the Tri-Meters or the pH Meters. 6 month limited warranty. Manufacturer's Product Information 2007 MSRP Each $66.95 Case Weight0.12 LB Case Dimensions9. x 3.25 x 0.5 IN Case Quantity1|http://www.horticulturesource.com/sun-system-sunlight-supply-fh-tri-meter-replacement-probe-3-cable-p1709/|http://www.horticulturesource.com/images/716320.jpg|59.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716325|1710|FH NUTRADIP CMS pH METER|Nutradip CMS pH METER NUTRADRIP CMS PH METER (20/CASE) The Nutradipand#714; CMS (constant monitoring system) pH Meter is the reliable way to measure the acidity or alkalinity in your water. It is a continuous monitoring pH meter with automatic temperature compensation.2 year limited warranty on meter. 6 month limited warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $132.95 Case Weight1.13 LB Case Dimensions7.25 x 4.5 x 3. IN Case Quantity1|http://www.horticulturesource.com/fhd-future-harvest-development-fh-nutradip-cms-ph-meter-p1710/|http://www.horticulturesource.com/images/716325.jpg|87.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716330|1711|FH NUTRADIP CMS PPM METER|Nutradip CMS PPM Meter NUTRADRIP CMS PPM METER (20/CASE) The Nutradip CMS (constant monitoring system) Nutrient Meter has automatic temperature compensation and measures the TDS ppm/EC in your water.2 year limited warranty on meter. 6 month limited warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $99.95 Case Weight1.19 LB Case Dimensions7.25 x 4.5 x 3. IN Case Quantity1|http://www.horticulturesource.com/fhd-future-harvest-development-fh-nutradip-cms-ppm-meter-p1711/|http://www.horticulturesource.com/images/716330.jpg|65.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716441|1712|BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE|Blue Lab Combo Meter COMBO METER/BLUELAB Light weight and portableMeasures pH, Nutrient and TemperatureThree display options for nutrient - EC, CF, ppm (500 scale)Two display options for temperature (C or F)Three calibration points, 4, 7 and 10 pHTemperature at a push of a buttonSimple push button pH calibrationAuto turn off functionLarge 13mm (1/2) digital display for easy readingSupplied with quality probes and pH calibration solutionsLow battery indicatorLong life 3 AAA batteries5 year Bluelab Guarantee (6 mo for pH probe) Manufacturer's Product Information 2007 MSRP Each $299.95 Case Weight1.23 LB Case Dimensions7.75 x 7.75 x 1.5 IN Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-combination-meter-measures-ph-nutrients-and-temperature-p1712/|http://www.horticulturesource.com/images/716441.jpg|203.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716442|1713|BLUELAB NUTRIENT MONITOR CONTINUOUSLY MEASURE PPM|BLUELAB NUTRIENT MONITOR CONTINUOUSLY MEASURE PPM.Continuously measures ppmTemperature reading at a touch of a button--range 32 - 122 and#176; FFlashing LED alarm quickly seen in a dark growing area2 meter probe lengthLarge 13mm (1/2") digital display for easy readingLong battery life (18 mo. from alkaline batteries)Ready to mount on wall or surfaceAutomatic temperature compensationSerial interface socket for connection to the Bluelab Maestro3 AA batteries2 year Bluelab Guarantee (Price applies to EACH).|http://www.horticulturesource.com/bluelab-bluelab-nutrient-monitor-continuously-measure-ppm-p1713/|http://www.horticulturesource.com/images/716442.jpg|92.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716443|1714|BLUELAB pH MONITOR CONTINUOSLY TAKES pH READINGS|BLUELAB pH MONITOR CONTINUOSLY TAKES pH READINGS. Continuously takes readings from nutrient solutionSimple manual pH calibration2 meter probe lengthCalibration solutions suppliedInternational BNC socket for pH probe connectionFlashing LED alarm quickly seen in a dark growing areaReady to mount on wall or surfaceLarge 13mm (1/2") digital display for easy readingLong battery life (18 months from alkaline batteries)Serial interface socket for connection to the Bluelab Maestro3 AA batteries2 Year Bluelab Guarantee (Price applies to EACH).|http://www.horticulturesource.com/bluelab-bluelab-ph-monitor-continuosly-takes-ph-readings-p1714/|http://www.horticulturesource.com/images/716443.jpg|138.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716445|1716|REPLACEMENT PROBE FOR BLUELAB COMBINATION METER and pH MONITORS|Blue Lab Combo Meter PH REPLACEMENT ELECTRODE BLUE Light weight and portableMeasures pH, Nutrient and TemperatureThree display options for nutrient - EC, CF, ppm (500 scale)Two display options for temperature (C or F)Three calibration points, 4, 7 and 10 pHTemperature at a push of a buttonSimple push button pH calibrationAuto turn off functionLarge 13mm (1/2) digital display for easy readingSupplied with quality probes and pH calibration solutionsLow battery indicatorLong life 3 AAA batteries5 year Bluelab Guarantee (6 mo for pH probe) Manufacturer's Product Information 2007 MSRP Each $81.95 Case Weight0.21 LB Case Dimensions7.24 x 2.5 x 1. IN Case Quantity1|http://www.horticulturesource.com/bluelab-replacement-probe-for-bluelab-combination-meter-ph-monitors-p1716/|http://www.horticulturesource.com/images/716445.jpg|46.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716447|1717|B.L. pH PROBE CLEAN-CALIBRATION KIT|B.L. pH PROBE CLEAN-CALIBRATION KIT (14/CASE). Probe cleaning is one of the most important parts of owning and operating any Bluelab Truncheon, meter, monitor or controller. If the probe is contaminated (dirty), it affects the accuracy of the reading displayed. The probe surface is where the instrument takes the reading of the solution. The information is sent back from the probe to the electronic brain of the instrument. A calculation is then done in the instruments brain or micro computer and a reading is then displayed. If the information sent back from the probe is inaccurate due to probe surface contamination then the reading will be inaccurate. Cleaning the probes is a very easy task and prolongs the life of the probes. pH cleaning and calibration kit:Full color laminated instructionsCalibration solutionsDe-canter vesselsProbe cleanerToothbrush (Price applies to EACH).|http://www.horticulturesource.com/bluelab-b-l-ph-probe-clean-calibration-kit-p1717/|http://www.horticulturesource.com/images/716447.jpg|28.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|706651|1720|MA812D/2 REPLACEMENT PROBE FOR SMS410 (1/CASE)|Milwaukee TDS Monitor [model SMS410] MA812D/2 REPLACEMENT PROBE TDS monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm packet buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $49.95|http://www.horticulturesource.com/milwaukee-instruments-ma812d-2-replacement-probe-for-sms410-1-case--p1720/|http://www.horticulturesource.com/images/706651.jpg|33.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|P3 International|716450|1721|KILL A WATT METER|Kill A Watt KILL A WATT METER Measures electrical consumption accurately within 0.2% and is ETL approved. Features large LCD screen which displays 8 critical units of measurements. Enables you to cost forecast. Manufacturer's Product Information 2007 MSRP Each $39.95 Case Weight0.44 LB Case Dimensions8.25 x 6.75 x 1.75 IN Case Quantity1|http://www.horticulturesource.com/p3-international-kill-a-watt-meter-p1721/|http://www.horticulturesource.com/images/716450.jpg|26.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Sun System / Sunlight Supply|716460|1722|FLAIRFORM pH TEST KIT|FLAIRFORM pH TEST KIT (25/CASE). Flairform's pH Test Kit provides a simple, foolproof method of obtaining fast and accurate pH readings. With NO complex or costly maintenance between tests you'll appreciate why many growers with electronic pH meters resist checking pH. When using a pH Test Kit you will get accurate results every time. Since pH is a measure of the concentration of 'hydrogen ions', it is important that any pH test method only responds to those ions. Flairform's pH Test Kit however cannot give false readings because it will only respond to hydrogen ions. Benefits:Super concentrated - 1 drop per test. Each 30ml bottle provides over 800 tests.Measures from pH 4.0 through to 8.0: This is a very important feature because some pH testers do not operate below pH 6 (i.e. show the same color over 4 to 6) and therefore if your nutrient pH is well below 6, a test will still show 6.Highly accurate, waterproof color chart on side of bottle.Long shelf life.Perfect back-up for die-hard pH meter users.Supplied with a quality test tube. (Price applies to EACH).|http://www.horticulturesource.com/sun-system-sunlight-supply-flairform-ph-test-kit-p1722/|http://www.horticulturesource.com/images/716460.jpg|7.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oregon Scientific|716530|1731|OS REMOTE SENSOR-TEMPERATURE WITH WATERPROOF PROBE|Oregon Scientific Remote Sensor-Temperature With Waterproof Probe REMOTE SENSOR-TEMP W/ WATERPROOF Probe Model THC 138LCD screen on sensor unit for viewing temperatureTemperature displays on base unit and sensor unit10 foot cable with waterproof probeBatteries 2 AAActual Size: 2.75 x .75 x 4 Manufacturer's Product Information 2007 MSRP Each $20.95 Case Weight0.29 LB Case Dimensions8.5 x 6. x 1.5 IN Case Quantity1|http://www.horticulturesource.com/oregon-scientific-os-remote-sensor-temperature-with-waterproof-probe-p1731/|http://www.horticulturesource.com/images/716530.jpg|16.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716570|1895|CW EC DIPSTICK|Control Wizard Dipstick DIPSTICK METERS New name! New label! Same easy to use meter! Now with the 4 most popular scales: EC, CF, 500:1ppm, and 700:1ppm! The E.C. Dipstick dissolved salts pen operates on 3 common inexpensive AA alkaline batteries. Measures in PPM, EC and CF scales.There is no calibration required. It calibrates itself each time you replace the batteries. It is water resistant so a light emersion in the plant nutrient should not hurt. However, it is a good idea to test small amounts of nutrient away from large bodies of water just in case you have butter fingers. Manufacturer's Product Information 2007 MSRP Each $79.95 Case Weight0.45 LB Case Dimensions16.5 x 1. x 1. IN Case Quantity1|http://www.horticulturesource.com/control-wizard-cw-ec-dipstick-p1895/|http://www.horticulturesource.com/images/716570.jpg|42.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716571|1896|CW DIPSTICK|DigiStickand#8482; DIGI STICK The lighted display is large and easy to read. There are no mistakes when the temperature compensating microchip quickly senses the electro conductivity of the nutrient solution or water sample and automatically freezes the display reading. PPM, EC and CF scales are easily accessed by easy to read buttons. Cutting edge electronic circuitry keeps the meter in calibration for extended periods of time. The DigiStickand#8482; is waterproof from the electrode up to the display, water resistant from the display to the battery cap. Uses a common 9-volt alkaline battery for power. Uses 1382 ppm (500ppm - 1 EC) calibration buffer. 1 year limited warranty. Manufacturer's Product Information 2007 MSRP Each $89.95 Case Weight1.00 LB Case Dimensions12. x 1.25 x 1.75 IN Case Quantity1|http://www.horticulturesource.com/control-wizard-cw-dipstick-p1896/|http://www.horticulturesource.com/images/716571.jpg|53.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716572|1897|CW 24-7 NUTRIENT MONITOR PPM H/TEMPERATURE|24-7 Nutrient Monitor 24-7 NUTRIENT MONITOR W/CALIB. SOLUTION The 24-7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for easy access. 6 month limited warranty. Manufacturer's Product Information 2007 MSRP Each $189.95 Case Weight1.00 LB Case Dimensions6.5 x 3.5 x 1. IN Case Quantity1|http://www.horticulturesource.com/control-wizard-cw-24-7-nutrient-monitor-ppm-ph-temperature-p1897/|http://www.horticulturesource.com/images/716572.png|142.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716573|1898|CW 24-7 pH REPLACEMENT PROBE|24-7 Nutrient Monitor 24-7 PH REPLACEMENT PROBE The 24-7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for easy access. 6 month limited warranty. Manufacturer's Product Information 2007 MSRP Each $49.95 Case Weight0.50 LB Case Dimensions7. x 1. x 1. IN Case Quantity1|http://www.horticulturesource.com/control-wizard-cw-24-7-ph-replacement-probe-p1898/|http://www.horticulturesource.com/images/716572-new.jpg|39.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716575|1900|CW SOIL, pH AND MOISTURE MONITOR|Control Wizard Soil pH and Moisture Meter ACCURATE PH 7 Control Wizard Products is now introducing its Accurate pH and moisture meter for soil growers. Until now, soil growers with the need to keep careful tabs on the pH of their soil has had to rely on either cheap, poor quality meters that are very expense and hard to get. This new meter is the best of both worlds. It is relatively inexpensive and is manufactured to high quality standards. No batteries are required. 1 year limited warranty. Manufacturer's Product Information 2007 MSRP Each $59.95|http://www.horticulturesource.com/control-wizard-cw-soil-ph-and-moisture-monitor-p1900/|http://www.horticulturesource.com/images/cw2.jpg|38.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716601|1902|MI MA73600 REPLACEMENT PROBE/PH 51 (1/CASE)|Milwaukee Waterproof pH Tester [model pH51] (MA73600)REPLACEMENT PROBE/PH 51 Waterproof pH tester with 2 point manual calibration, 0.1 pH accuracy, range: 0.0 to 14.0 pH, replaceable MA73600 pH electrode with battery technology providing 1500 hours of battery life. Manufacturer's Product Information 2007 MSRP Each $46.95 Case Weight0.14 LB Case Dimensions9.75 x 2. x 2. IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma73600-replacement-probe-ph-51-1-case--p1902/|http://www.horticulturesource.com/images/716600.jpg|36.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716605|1903|T75 WATERPROOF TDS TESTER (1/CASE)|Milwaukee Waterproof TDS Tester [model T75] T75 WATERPROOF TDS TESTER Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $76.95 Case Weight0.71 LB Case Dimensions8. x 4. x 2.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-t75-waterproof-tds-tester-1-case--p1903/|http://www.horticulturesource.com/images/716605.jpg|59.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716606|1904|MI MA73075 REPLACEMENT PROBE FOR T75 (1/CASE)|Milwaukee Waterproof TDS Tester [model T75] (MA73075)REPLACE.PROBE/T75 Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $52.95 Case Weight0.15 LB Case Dimensions9.75 x 2. x 2. IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma73075-replacement-probe-for-t75-1-case--p1904/|http://www.horticulturesource.com/images/716605.jpg|51.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716610|1905|T76 WATERPROOF TDS TESTER (1/CASE)|Milwaukee Waterproof TDS Tester [model T75] T76 WATERPROOF TDS TESTER Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $76.95 Case Weight0.70 LB Case Dimensions7.75 x 4. x 2.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-t76-waterproof-tds-tester-1-case--p1905/|http://www.horticulturesource.com/images/716605.jpg|56.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716611|1906|MI MA73076 REPLACEMENT PROBE FOR C65/T76 (1/CASE)|Milwaukee Waterproof EC Tester [model C65] (MA73076)REPLAPROBE/C65/T76(DS Model C65 Waterproof conductivity tester with automatic temperature compensation and 1 point manual calibration range: 0 to 1999 S/cm, replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $52.95 Case Weight0.13 LB Case Dimensions9.75 x 2. x 2. IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma73076-replacement-probe-for-c65-t76-1-case--p1906/|http://www.horticulturesource.com/images/716605.jpg|45.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716615|1907|MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)|Smart pH/EC/TDS Combo. Meter Model MW802The MW802 is a compact portable meter with faster micro processor. This meter allows you to measure pH, EC and TDS with just one instrument and one single probe! This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. Also has 100% larger and easier to read LED Display and long battery life. It calibrates manually in pH, Conductivity and TDS. Range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of +/-0.20 pH and +/-2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 !S/cm.MSRP: $229.95|http://www.horticulturesource.com/milwaukee-instruments-mi-mw802-was-sm802-smart-ph-ec-tds-combination-meter-1-case--p1907/|http://www.horticulturesource.com/images/716615-new.jpg|169.6800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716616|1908|MI MA850 REPLACEMENT PROBE FOR SM802 (1/CASE)|Milwaukee Smart pH/EC/TDS Combination Meter [model SM802] (MA850) REPLACE.PROBE/SM802 Model SM802 Smart pH/EC/TDS combination meter, range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of 0.20 pH and 2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 S/cm. Manufacturer's Product Information 2007 MSRP Each $79.95|http://www.horticulturesource.com/milwaukee-instruments-mi-ma850-replacement-probe-for-sm802-1-case--p1908/|http://www.horticulturesource.com/images/716615.jpg|78.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716630|1909|C65 WATERPROOF EC TESTER (1/CASE)|Milwaukee Waterproof EC Tester [model C65] C65 WATERPROOF EC TESTER Model C65 Waterproof conductivity tester with automatic temperature compensation and 1 point manual calibration range: 0 to 1999 S/cm, replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $76.95 Case Weight0.70 LB Case Dimensions8. x 4. x 2.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-c65-waterproof-ec-tester-1-case--p1909/|http://www.horticulturesource.com/images/716630.jpg|60.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716635|1910|MI SMS115 PH METER W CALIBRATION TEST (1/CASE)|Milwaukee Smart pH Meter With Cal Test [model SMS115] SMS115 PH METER W CAL TEST Model SMS115 pH meter with cal-test, range: 0.0 to 14.0 pH, accuracy of 0.2 pH, manual calibration in 2 points. Supplied with 12v DC power adapter, MA912B/2 pH electrode, 20ml packet of cal-test solution, 4.01 solution, 7.01 solution, storage solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $100.95 Case Weight1.50 LB Case Dimensions8.25 x 5.5 x 2.25 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-sms115-ph-meter-w-calibration-test-1-case--p1910/|http://www.horticulturesource.com/images/716635.jpg|80.4800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716636|1911|MI MA912B REPLACEMENT PROBE FOR SMS115 (1/CASE)|Milwaukee Smart pH Meter With Cal Test [model SMS115] (MA912B) REPLACEPROBE/SMS115 Model SMS115 pH meter with cal-test, range: 0.0 to 14.0 pH, accuracy of 0.2 pH, manual calibration in 2 points. Supplied with 12v DC power adapter, MA912B/2 pH electrode, 20ml packet of cal-test solution, 4.01 solution, 7.01 solution, storage solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $54.95|http://www.horticulturesource.com/milwaukee-instruments-mi-ma912b-replacement-probe-for-sms115-1-case--p1911/|http://www.horticulturesource.com/images/716635.jpg|42.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716650|1912|MI SMS410 TDS MONITOR (1/CASE)|Milwaukee TDS Monitor [model SMS410] SMS410 TDS MONITOR TDS monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm packet buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $110.95 Case Weight1.74 LB Case Dimensions10.5 x 4.75 x 4.75 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-sms410-tds-monitor-1-case--p1912/|http://www.horticulturesource.com/images/706650.jpg|62.0400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716655|1913|MI SM401 PORTABLE TDS METER (1/CASE)|Milwaukee Portable TDS Meter [model SM401] SM401 PORTABLE TDS METER Model SM401 TDS meter - Range: 0.0 - 1990 ppm - with automatic temperature compensation and 1 point manual calibration supplied with MA811D/1 TDS probe, 9v battery, 20ml 1382 ppm packet buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $101.95|http://www.horticulturesource.com/milwaukee-instruments-mi-sm401-portable-tds-meter-1-case--p1913/|http://www.horticulturesource.com/images/706655.jpg|52.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716656|1914|MI MA811D/1 REPLACEMENT PROBE FOR SM301 and SM401 (1/CASE)|Milwaukee Portable TDS Meter [model SM401] (MA811D/1) PROBE/SM301 and401(DS Model SM401 TDS meter - Range: 0.0 - 1990 ppm - with automatic temperature compensation and 1 point manual calibration supplied with MA811D/1 TDS probe, 9v battery, 20ml 1382 ppm packet buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $49.95|http://www.horticulturesource.com/milwaukee-instruments-mi-ma811d-1-replacement-probe-for-sm301-sm401-1-case--p1914/|http://www.horticulturesource.com/images/706655.jpg|38.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716660|1915|MI SMS110 PH MONITOR (1/CASE)|Milwaukee pH Monitor [model SMS110] SMS110 PH MONITOR Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $110.95 Case Weight1.75 LB Case Dimensions10.25 x 4.75 x 4.75 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-sms110-ph-monitor-1-case--p1915/|http://www.horticulturesource.com/images/716660.jpg|82.8800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716661|1916|MI MA911B/2 REPLACEMENT PROBE FOR SMS110 (Special Order)|Replacement probe for Milwaukee pH Monitor [model SMS110] (MA911B/2)REPL.PROBE/SMS110 About the meter (no included): Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdriver for calibration. NOTE this product is a special order item and may take 4-6 weeks to ship. Manufacturer's Product Information 2007 MSRP Each $54.95 Case Weight0.25 LB Case Dimensions9.5 x 2. x 2. IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-ma911b-2-replacement-probe-for-sms110-special-order--p1916/|http://www.horticulturesource.com/images/716660.jpg|37.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716665|1917|MI MW100 (was SM100) PORTABLE PH METER (1/CASE)|Portable pH Meter Model MW100The MW802 is a compact portable meter with faster micro processor. This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. Other features include 100% larger and easier to read LED Display and long battery life. pH meter, range: 0.0 to 14.0, with 2 point manual calibration, and accuracy of +/- 0.2 pH. Supplied with a MA911B/1 double junction pH electrode, 9v battery, 20ml pH 7.01 packet buffer solution and screwdriver for calibration.MSRP: $109.95|http://www.horticulturesource.com/milwaukee-instruments-mi-mw100-was-sm100-portable-ph-meter-1-case--p1917/|http://www.horticulturesource.com/images/716665-new.jpg|78.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716695|1919|MI MR32ATC SUGAR REFRACTOMETER AT|Milwaukee Sugar Refractometer ATC [model MR32] MR32ATC SUGAR REFRACTOMETER AT Sugar refractometer for general purpose with ATC. Range 0 - 32% brix, resolution 0.1%. Use this item to gauge the health of your plants by measuring their sugar content. This method is used by horticulturalists to indicate plant stress before the plant shows symptoms. Simple to use - just extract one drop of liquid from the petiole tissue (leaf stem) andamp; easily measure sugar content. Manufacturer's Product Information 2007 MSRP Each $116.95 Case Weight0.82 LB Case Dimensions7.75 x 3.75 x 2.25 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-mr32atc-sugar-refractometer-at-p1919/|http://www.horticulturesource.com/images/716695.jpg|89.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Sun System / Sunlight Supply|716740|1920|PLANT LIGHT INTENSITY METER MODEL LIM 2500|Plant Intesity Light Meter [model LIM2500] PLANT LIGHT INTENSITY METER A precision instrument that measures the light intensity in foot candles expressly for the purpose of plant care, equipped with the Universal-Sensor-Probe, capable of reading light at any angle or in any location. Comes with complete book of light and its effects upon plant growth, plant development and seed germination. Tells how to grow healthy, thriving plants. Manufacturer's Product Information 2007 MSRP Each $29.95 Case Weight3.85 LB Case Dimensions12. x 10.5 x 5. IN Case Quantity1|http://www.horticulturesource.com/sun-system-sunlight-supply-plant-light-intensity-meter-model-lim-2500-p1920/|http://www.horticulturesource.com/images/716740.jpg|22.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716750|1921|RAPITEST SOIL pH METER|Rapitest Soil pH Meter [model 1840] SOIL PH METER Model 1840 Instantly tells you how acid or alkaline your soil isCheck which plants suit your gardenEnables you to alter soil conditionIncludes pH preferences for over 400 plants. Manufacturer's Product Information 2007 MSRP Each $19.95 Case Weight2.18 LB Case Dimensions9.5 x 5.5 x 11.75 IN Case Quantity6|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-soil-ph-meter-p1921/|http://www.horticulturesource.com/images/716750.jpg|14.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716752|1922|RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE H MODEL 1880|Rapitest 4 -Way Analyzer [model 1880] FOUR WAY ANALYZER Instantly tells you the fertility of your soilMeasures the light intensity in footcandlesInstantly tells you when to water your plants by measuring the moisture levelInstantly tells you how acid or alkaline your soil is by measuring the pH levelMeasures four different levels for fertilizer, light, moisture and pH. Includes instructions and guides for all four measuring levels. Manufacturer's Product Information 2007 MSRP Each $34.95 Case Weight1.22 LB Case Dimensions12. x 6. x 4. IN Case Quantity3|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-4-way-analyzer-fertilizer-light-moisture-ph-model-1880-p1922/|http://www.horticulturesource.com/images/1880.jpg|24.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716753|1923|RAPITEST MINI PH TESTER (12/CASE)|Rapitest Mini pH Tester [model 1815] RAPITEST MINI PH TESTER (12/CA Tests the acidity of soilCheck which plants suit your soilEnables you to alter soil conditionsUse for fruits, flowers, shrubs and vegetablesNo batteries required Manufacturer's Product Information 2007 MSRP Each $8.95 Case Weight2.31 LB Case Dimensions13.75 x 5.75 x 7.75 IN Case Quantity12|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-mini-ph-tester-12-case--p1923/|http://www.horticulturesource.com/images/716753.jpg|5.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716754|1924|RAPITEST MINI MOISTURE TESTER MODEL 1810|Rapitest Mini Moisture Tester Model 1810 MINI MOISTURE TESTER Instantly tells you when to water your plantsPrevents over wateringIdeal for plants grown in window boxes, hanging baskets and growbagsIncludes watering needs for over 100 plantsNo batteries required Manufacturer's Product Information 2007 MSRP Each $7.95 Case Weight2.45 LB Case Dimensions13.75 x 5.75 x 7.75 IN Case Quantity1|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-mini-moisture-tester-model-1810-p1924/|http://www.horticulturesource.com/images/716754.jpg|4.6400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716755|1925|RAPITEST pH SOIL TESTER (12/CASE)|Rapitest pH Soil Tester [model 1612] PH SOIL TESTER (12/CASE) Kit includes: color comparator, 10 pH test capsules, complete instructions for adjusting soil pH and pH preferences list for over 450 plants for the home, yard and garden. All you do is put a sample of soil into the comparator, add powder capsule, add water, shake and watch the color develop. Then, note your results. Fast, easy and it only takes a few minutes. Manufacturer's Product Information 2007 MSRP Each $4.69 Case Weight1.89 LB Case Dimensions9.25 x 8.75 x 5.25 IN Case Quantity12|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-ph-soil-tester-12-case--p1925/|http://www.horticulturesource.com/images/716755.jpg|3.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716756|1926|RAPITEST SOIL TEST pH NPK|Rapitest Soil Test Kit [model 1601] SOIL TEST PH,N,P,K Kit includes: 4 color comparators, 40 test capsules, 10 each for pH, N, P and K, complete instructions for adjusting soil pH, fertilization guidelines and pH preferences list for over 450 plants for the home, yard and garden. Plants need food (nutrients)for healthy growth. Nitrogen, Phosphorus and Potash (N, P and K for short), play a vital role in plant growth. This kit enables you to test all four levels of pH, Nitrogen, Phosphorus and Potash. Manufacturer's Product Information 2007 MSRP Each $15.99 Case Weight2.40 LB Case Dimensions9.25 x 8.75 x 5. IN Case Quantity1|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-soil-test-ph-npk-p1926/|http://www.horticulturesource.com/images/716756.jpg|12.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|722080|1933|pH CONTROL KIT (12/CASE)|General Hydroponics pH Control Kit PH CONTROL KIT (12/CASE) Contains: 8 oz. pH UP, 8 oz. pH DOWN, 1 oz. indicator and vial Manufacturer's Product Information 2007 MSRP Each $15.95 Case Weight19.35 LB Case Dimensions17.25 x 10.5 x 7.5 IN Case Quantity12 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/general-hydroponics-ph-control-kit-12-case--p1933/|http://www.horticulturesource.com/images/722080.jpg|10.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|722145|1940|pH TEST KIT 1OZ (24/CASE)|General Hydroponicsand#8482; pH Test Kit PH TEST KIT 1OZ (24/CASE) 1 oz. test kit with test vial offers wide spectrum testing (pH 4.0 to 8.5). This concentrated solution requires only 5 drops per test. Manufacturer's Product Information 2007 MSRP Each $6.95 Case Weight3.07 LB Case Dimensions7.25 x 7.25 x 7.25 IN Case Quantity24|http://www.horticulturesource.com/general-hydroponics-ph-test-kit-1oz-24-case--p1940/|http://www.horticulturesource.com/images/722145.jpg|4.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|722326|1948|M10032B 20ML PACKET 1382 PPM CASE OF 25|Milwaukee Portable TDS Meter [model SM401] M10032B- 20ML PACKET 1382 PPM Model SM401 TDS meter - Range: 0.0 - 1990 ppm - with automatic temperature compensation and 1 point manual calibration supplied with MA811D/1 TDS probe, 9v battery, 20ml 1382 ppm packet buffer solution and screwdriver for calibration. Manufacturer's Product Information 2007 MSRP Each $1 Case Weight1.43 LB Case Dimensions6.5 x 7. x 3.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-m10032b-20ml-packet-1382-ppm-case-of-25-p1948/|http://www.horticulturesource.com/images/722326.jpg|19.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716760|2384|MI SM101 PORTABLE pH METER #SM101|Smart Portable pH Meter Model SM101 SM101 PORTABLE PH METER pH meter, 0.00 to 14.00, with 2 point manual calibration, +/- 0.02 pH accuracy. Supplied with a MA911B/1 double junction pH electrode, 9 V battery, 20 ml. pH 7.01 sachet buffer solution and screwdriver for calibration. Drop ship. Manufacturer's Product Information 2007 MSRP Each $102.95 Case Weight0.94 LB Case Dimensions8.5 x 5.75 x 2.5 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-sm101-portable-ph-meter-sm101-p2384/|http://www.horticulturesource.com/images/716760.jpg|82.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716770|2386|MI DISSOLVED OXYGEN METER #SM600|SM 600 DISSOLVED OXYGEN METERpH / EC / TDS METERS and SOLUTIONS|http://www.horticulturesource.com/milwaukee-instruments-mi-dissolved-oxygen-meter-sm600-p2386/|http://www.horticulturesource.com/images/716770.jpg|190.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716775|2387|MI SMART pH CONITUOUS METER #SMS120|Smart pH Continuous Monitor Model SMS 120 SMS 120 SMART PH CONTINUOUS MO pH Monitor, range: 0.0 to 14.0, with 2 point manual calibration, and accuracy OF +/-0.2 pH. Set point range: 5.5 to 9.5 pH, and LED visual alarm active when reading is higher than set point. Supplied with 12 volt DC power adapter, MA911B/2 double junction pH electrode, 20 ml. pH 7.01 buffer solution and screwdriver for calibration. Drop ship. Manufacturer's Product Information 2007 MSRP Each $99.95 Case Weight1.72 LB Case Dimensions10.25 x 4.75 x 4.75 IN Case Quantity1|http://www.horticulturesource.com/milwaukee-instruments-mi-smart-ph-conituous-meter-sms120-p2387/|http://www.horticulturesource.com/images/716775.jpg|79.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716698|2391|MI SALINITY REFRACTOMETER ATC #MR100 ATC|Salinity Refractometer ATC Model MR100 ATC SALINITY REFRACTOMETER W/ ATC NEW!The MR series refractometers are precision optical instruments used for measuring concentrations of substances in aqueous solutions. They work using the principle of light refraction trough liquids. When passing light trough a liquid the refracted angle will be shown on the scale determining the amount of dissolved solids in the liquid. Simply place one drop of your sample on the prism and read the results on the scales immediately! For sea water density with ATC. Range: 0-100% salinity, 1.000-1.070 (specific gravity), resolution 1% salinity, 0.001 (specific gravity). Drop Ship. Manufacturer's Product Information 2007 MSRP Each $99.95|http://www.horticulturesource.com/milwaukee-instruments-mi-salinity-refractometer-atc-mr100-atc-p2391/|http://www.horticulturesource.com/images/milwaukee-mr100atc.jpg|79.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|716578|3015|Control Wizard Accurate pH 8|Control Wizard Accurate pH 8 ACCURATE PH 8 Professional pH and Moisture Meter with 12" probe. Operation is simple. Clean the electrodes and place the meter into the soil. A pH reading is automatically displayed. Press the white button and a moisture reading is displayed. It works by utilizing the electronic ground field effect of the earth and two dissimilar metals. No batteries are required. 1 year limited warranty. Manufacturer's Product Information 2007 MSRP Each $69.95|http://www.horticulturesource.com/control-wizard-control-wizard-accurate-ph-8-p3015/|http://www.horticulturesource.com/images/ph8.jpg|44.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|MI216|3233|MR32 Refractometer.|MR32 Brixmeter Refractometer. This refractometer measures the sugar content of plant material directly derived from photosynthesis and reads in Brix. The user squeezes plant juices onto the refractometer's reading lens and then the user looks through the meter. A scale is observed known as the Brix scale. The higher the Brix reading on the scale the more sugar content in the plant juices. This allows the grower to record data on the plant and confirm that more or less photosynthesis has occurred since the last reading. Things that can change Brix reading are: the spraying of minerals/vitamins/enzymes or hormones onto the leaf, the adding of specialized nutrients to the growing medium, the reduction or addition of humidity or the simple addition or reduction of more light to the plant leaves. It is truly great tool to own.|http://www.horticulturesource.com/milwaukee-instruments-mr32-refractometer--p3233/|http://www.horticulturesource.com/images/mi216infopic1.jpg|110.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|CW505|3285|Replacement pH Electrode for 24-7 Nutrient Monitor.|If your 24-7 Nutrient Monitor pH electrode breaks or wears out, order this item. This electrode is compatible with the combination Hanna meter listed on this site as HI9813-6 GROCHECK PORTABLE COMBO.|http://www.horticulturesource.com/hanna-instruments-replacement-ph-electrode-for-24-7-nutrient-monitor--p3285/|http://www.horticulturesource.com/images/cw505infopic1.jpg|34.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW511|3286|24-7 Nutrient Monitor.|The 24-7 Nutrient Monitor from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for easy access. Control Wizard has priced the new 24-7 Nutrient Monitor to have the lowest MSRP of any constant read meter currently on the market. This low price will allow more first time growers to afford the quality and no hassle features of a constant read meter. Retail Price: $199.95|http://www.horticulturesource.com/control-wizard-24-7-nutrient-monitor--p3286/|http://www.horticulturesource.com/images/cw511infopic.jpg|139.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY1741|3287|Hanna COMBO Tester (HI98129).|The HI98129 Combo tester from Hanna Instruments is designed for fast, efficient and high accuracy pH, EC/TDS and temperature measurements. No more switching meters to measure the pH and then the EC or TDS of a solution.This tester has a hold feature to prompt the user when to take the reading and a display freeze for easy and accurate recording. Calibration and temperature compensation is automatic. The combo has a replaceable pH electrode cartridge and an EC/TDS graphite electrode, which resists contamination. The temperature probe is stainless steel, for faster and more precise measurement.|http://www.horticulturesource.com/hanna-instruments-hanna-combo-tester-hi98129--p3287/|http://www.horticulturesource.com/images/hy1741thumb.jpg|160.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY17411|3288|Replacement ph Probe Electrode for HI98129 and HI98127.|Hanna Replacement pH Probe for HI98129 EC/TDS/PH/TEMP, and HI98127 (pHep4 pH Tester) PH meters.Hanna Product Number HI73127|http://www.horticulturesource.com/hanna-instruments-replacement-ph-probe-electrode-for-hi98129-and-hi98127--p3288/|http://www.horticulturesource.com/images/hy17411infopic1.jpg|55.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY1743|3289|Grockek Combo.|GROCHEK COMBO by HANNA. This unit incorporates pH, temperature, and EC readings all in one package. Simply install the meter above the reservoir and insert the electrodes into the solution for continuous readings. TDS measurements are defined as 700 ppm = 1 EC. Range of pH is 0-14 and ppm is 0-2000. Hanna Part #HI9813-6.|http://www.horticulturesource.com/hanna-instruments-grockek-combo--p3289/|http://www.horticulturesource.com/images/hy1743thumb.jpg|241.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY17431|3290|Replacement Probe for HI9919404.|HANNA REPLACEMENT PROBE FOR HI9919404 EC/TDS/PH/TEMP combo meter.|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-hi9919404--p3290/|http://www.horticulturesource.com/images/hy17431infopic1.jpg|102.7700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY177|3291|Grocheck Combo Meter.|HI9813-6 GROCHECK PORTABLE COMBO.pH/EC/TDS/Temp Meter with F.S.T. Technology New Technology to Check the Status of the ElectrodeMeasures a Variety of Parameters with One InstrumentFast Response ProbeHANNA instruments developed new F.S.T. technology for the new HI 9813-6. With this special security system, if the meter encounters incorrect readings, the instrument doesn't display values close to pH 7, but close to pH 4, making the problem clear. To allow maximum confidence in your measurements, the meter is equipped with two LEDs and a Check button. When pressing this button, after immersing the electrode in the proper solution, HI 50021P (Cal-Check solution), one of the LED's will light up to indicate the status of the meter. The green LED (OK) indicates the probe is working correctly, while the red LED (CandC Clean and Cal) indicates the electrode needs attention.HI 9813-6 is supplied complete with pH/EC/TDS/T HI 1285-6 probe with 1 m cable, pH 7, 1.41 mS/cm and 1500 ppm calibration solution (20 mL each), cleaning solution 2 pcs), HI 50021 test solution (2 pcs), blue protective case, battery and instructions.|http://www.horticulturesource.com/hanna-instruments-grocheck-combo-meter--p3291/|http://www.horticulturesource.com/images/hy177infopic1.jpg|218.0300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||NT200|3292|Analog pH and TDS Meter.|Myron L Analog pH and TDS Meter. TDS displayed in PPM|http://www.horticulturesource.com/analog-ph-tds-meter--p3292/|http://www.horticulturesource.com/images/nt200infopic1.jpg|506.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW520|3820|Accurate pH 7.|Control Wizard Products is now introducing its Accurate pH 7 pH-moisture meter for soil growers. Until now, soil growers with the need to keep careful tabs on the pH of their soil have had to rely on either cheap and hokey junk meters or meters that are very expense and hard to get. This new meter is the best of both worlds. It is relatively inexpensive and is manufactured to high quality standards. Operation is simple. It works by utilizing the electronic ground field effect of the earth and two dissimilar metals. No batteries are required. 1 year limited warranty.Clean the electrodes and place the meter into the soil as shown. A pH reading is automatically displayed. Press the green button and a moisture reading is displayed. Clean the electrodes before each use. It works byilizing the electronic ground field effect of the earth and two dissimilar metals. No batteries are required. 1 year limited warranty.Work best in Blackjack Ultra Premium Potting Soil. By the way, be sure to use Blackjack Gigantamo Water Conditioner to condition your water before watering or feeding your plants. It's great stuff.|http://www.horticulturesource.com/control-wizard-accurate-ph-7--p3820/|http://www.horticulturesource.com/images/cw520infopic1.jpg|45.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||CW525|3821|Accurate pH 8.|Accurate pH 8Professional pH and Moisture Meter with 12" Probe.Now You can check soil pH at multiple depths!! The probe is 12" long for extra large planters.Operation is simple. Clean the electrodes and place the meter into the soil. A pH reading is automatically displayed. Press the white button and a moisture reading is displayed. Clean the electrodes before each use. It works by utilizing the electronic ground field effect of the earth and two dissimilar metals. No batteries are required.|http://www.horticulturesource.com/accurate-ph-8--p3821/|http://www.horticulturesource.com/images/cw525infopic1.jpg|52.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||MI210|3822|Moisture Meter.|RAPITEST MOISTURE METER (PROBE TYPE)|http://www.horticulturesource.com/moisture-meter--p3822/|http://www.horticulturesource.com/images/mi210infopic1.jpg|16.6600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW500|3956|Accurate pH 1.|This is the Accurate pH 1. The Accurate pH 1 meter has clearly been manufactured to compete in the market place for entry-level growers. Control Wizard should do well against competitor models, as this meter is stylish, gives solid readings and has a good feel in the hand. It has a two-point calibration process that is easy to do and takes little time. This meter reads in pH points and tenths of a point. The calibration process requires the use of pH 4.0 and pH 7.0 calibration solutions (Sold Separately). While it does not have a temperature compensation feature like Control Wizard's Accurate pH 2, temperature compensation is not a necessity for most growers. A meter that has good stable reading and can hold calibration is a necessity. This is where the Accurate pH 1 really shines for entry level growers. It is simply a great little tool for accurately determining pH. It comes with a plastic case, screwdriver and instructions. This meter comes with a limited one-year warranty with your original sales receipt. The Accurate pH 1 uses four (4) LR44 batteries.|http://www.horticulturesource.com/control-wizard-accurate-ph-1--p3956/|http://www.horticulturesource.com/images/cw500infopic1.jpg|27.8400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW502|3957|Accurate pH 2.|This is the Accurate pH 2. This meter is a step up from Control Wizard Products' Accurate pH 1 meter with readings that show pH in whole and tenths of a pH point. It has a two-point calibration process that is easy to do and takes little time. This calibration process requires the pH 4.0 and pH 7.0 calibration solutions (Sold Separately).It has a temperature compensation feature and a large display that can be easily seen in lowlight situations. The meter is attractive and fits comfortably in your hand.The Accurate pH 2 and Accurate PPM 2 share housing styles for those growers who prefer a matched set. It comes with a plastic case, screwdriver and instructions. This meter comes with a limited one-year warranty with your original sales receipt. The Accurate pH 2 uses four (4) LR44 batteries.|http://www.horticulturesource.com/control-wizard-accurate-ph-2--p3957/|http://www.horticulturesource.com/images/cw502infopic1.jpg|36.1100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW503|3958|Accurate pH 3.|This is the Accurate pH 3. This waterproof meter is a step up from Control Wizard Products' Accurate pH 2 meter. It's readings are shown in whole, tenths and hundredths of a pH point.It has a one-point calibration process for fast and accurate tests. This process requires the pH 7.0 calibration solution (sold separately).The electrode (CW504) is easily replaceable by the consumer and is relatively inexpensive. The Accurate pH 3 comes complete in a simulated leather storage pouch with lanyard, a screwdriver, batteries, a complete instruction manual and a one-year warranty with receipt. Waterproof to one meter.|http://www.horticulturesource.com/control-wizard-accurate-ph-3--p3958/|http://www.horticulturesource.com/images/cw503infopic1.jpg|64.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW504|3959|Accurate pH 3 Replacement Probe.|Replacement probe for Control Wizard Products pH 3.|http://www.horticulturesource.com/control-wizard-accurate-ph-3-replacement-probe--p3959/|http://www.horticulturesource.com/images/cw504infopic1.jpg|25.7300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY174|3960|pHep4 pH Tester (HI98127).|pHep4 pH Testers Hanna pH hand-held meter that measures pH as well as temperature. The meter automatically compensates for solution temperature for more accurate and quick readings.Hanna ID: HI98127Dual Level Display Showing pH and Temp.Rugged, Floating Waterproof CasingReplaceable pH Electrode Featuring an Extendable JunctionThe waterproof pHep 4 pH tester has a dual-level LCD that displays pH and degrees C or degrees F. At startup, pHep performs a self check then displays the remaining battery level to assure proper working condition. These testers also feature a stability indicator and hold feature to prompt the user when to take the reading and freeze the display for easy and accurate recording. These pH/Temperature meters have a stainless steel temperature probe for faster and more precise temperature measurement and auto-compensation. 1 or 2 point calibration is made simple with automatic recognition of both standard and NIST buffer sets. We have designed the new pHep pH electrodes with an extendable reference junction and when the electrode finally is exhausted simply insert a new electrode cartridge! HI 98127 (pHep4) is supplied complete with protective cap, electrode removal tool, batteries and instructions.|http://www.horticulturesource.com/hanna-instruments-phep-4-ph-tester-hi98127--p3960/|http://www.horticulturesource.com/images/hy174thumb.jpg|89.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1771|3961|HI1285-6 Replacement Probe.|HI1285-6 Replacement Probe for NEW HI9813-6 (HY1743)|http://www.horticulturesource.com/hi1285-6-replacement-probe--p3961/|http://www.horticulturesource.com/images/hy1771infopic1.jpg|119.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1781|3962|Replacement Probe for GroChek (HI1285).|HI1285 PROBE FOR older HI9813|http://www.horticulturesource.com/replacement-probe-for-grochek-hi1285--p3962/|http://www.horticulturesource.com/images/hy1781infopic1.jpg|112.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY1801|3963|Replacement Probe for GroChek.|Replacement Probe for Hanna Gro Chek meter series. HI1286 PROBE FOR HI981401Replacement Probe for Hanna Grow Check meter series. This will replace the pH elecrtrode in all models of the Grow Check.|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-grochek--p3963/|http://www.horticulturesource.com/images/hy1801thumb.jpg|50.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY181|3964|GroChek pH Meter.|HANNA GRO CHEK pH Meter. This meter provides a continuous digital pH reading. It is powered by a simple transformer. The electrode rests in your reservoir or nutrient tank and provides real-time pH monitoring. You can have a professional piece of equipment at consumer prices!|http://www.horticulturesource.com/hanna-instruments-grochek-ph-meter--p3964/|http://www.horticulturesource.com/images/hy181infopic1.jpg|99.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1841|3965|pH Pro Replacement Sensor.|SHINDENGEN pH PRO REPLACEMENT SENSOR|http://www.horticulturesource.com/ph-pro-replacement-sensor--p3965/|http://www.horticulturesource.com/images/hy1841infopic1.jpg|58.2714|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1842|3966|pH Pro.|SHINDENGEN pH PRO DIGITAL pH METER. Japan's newest pH testing technology. The meter measures pH using a solid-state Ion Sensitive Field Effect Transistor(ISFET)and is temperature compensated as well. An excellent value for such an accurate instrument!!|http://www.horticulturesource.com/ph-pro--p3966/|http://www.horticulturesource.com/images/hy1842infopic1.jpg|171.9954|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY1861|3967|pH Checker 1.|HANNA pH CHECKER 1 (LIQUIDS ONLY) Digital readout.Not temperature compensating but a very good value. We don't get many of these returned so we keep on selling them. Out-performs their more expensive models. Replaceable electrode.|http://www.horticulturesource.com/hanna-instruments-ph-checker-1--p3967/|http://www.horticulturesource.com/images/hy1861infopic1.jpg|46.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY190|3968|pH Checker 1 Replacement Probe.|HANNA pH CHECKER 1 Replacement Electrode for Hanna model HY1861.|http://www.horticulturesource.com/hanna-instruments-ph-checker-1-replacement-probe--p3968/|http://www.horticulturesource.com/images/hy190infopic1.jpg|27.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||MI211|3969|Soil pH Tester.|RAPITEST SOIL pH TESTER with probe.|http://www.horticulturesource.com/soil-ph-tester--p3969/|http://www.horticulturesource.com/images/mi211infopic1.jpg|22.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|HY100|3970|pH Test Kit.|GENERAL HYDROPONICS pH TEST KIT (LIQUIDS ONLY) Range of 4.0-8.5Add sample to be tested to the clear container and add three drops from the test kit bottle to it. Place the cap on tightly and shake. Now compare the samples color to the test chart.|http://www.horticulturesource.com/general-hydroponics-ph-test-kit--p3970/|http://www.horticulturesource.com/images/hy100infopic1.jpg|6.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY182|3971|pH Test Kit.|WARDLEY'S pH TEST KIT (LIQUIDS ONLY) Range of 6.2-7.4|http://www.horticulturesource.com/ph-test-kit--p3971/|http://www.horticulturesource.com/images/hy182infopic1.jpg|4.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY187|3972|pHydrion Litmus Paper. (ph Test Strip)|pHydrion PAPERS. LITMUS PAPER ROLL (LIQUIDS ONLY) Range of 5.5-8.0 ph Test Strip Paper|http://www.horticulturesource.com/phydrion-litmus-paper-ph-test-strip--p3972/|http://www.horticulturesource.com/images/hy187infopic1.jpg|12.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|MI426|3973|Soil pH Tester.|Rapitest Garden Soil pH Tester. Drop the contents of the capsule into the sample of water and soil. Match the color to the chart.|http://www.horticulturesource.com/luster-leaf-products-inc-soil-ph-tester--p3973/|http://www.horticulturesource.com/images/mi426infopic1.jpg|5.5200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|MI429|3974|Soil Test Kit.|Rapitest Garden Soil Test Kit. 4 Separate Tests (pH, Nitrogen, Phosphorus, Potassium)|http://www.horticulturesource.com/luster-leaf-products-inc-soil-test-kit--p3974/|http://www.horticulturesource.com/images/mi429infopic1.jpg|17.1600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW508|4082|Accurate PPM 2.5|The Accurate PPM 2.5 is CWP Instruments PPM meter for the hydroponic gardener. The Accurate PPM 2.5 is a rugged, hand-held conductivity meter that reads in parts per million. This meter has rock solid features found on other brands costing 2-3 times more.CWP Instruments' engineers placed an emphasis on the Accurate PPM 2.5's microchip and board and give it unsurpassed reliability in its price category.It is calibrated with CWP Instruments 1382 PPM calibration solution.The Accurate PPM 2.5 has been manufactured to be water resistant.Its large display is easily seen in low light situations.The Accurate PPM 2.5 is a fine investment for all growers who want a rock solid PPM meter without spending the big bucks.It comes with a plastic case, screwdriver and instructions. This meter comes with a limited one-year warranty with your original sales receipt. This meter uses four (4) LR44 batteries.|http://www.horticulturesource.com/control-wizard-accurate-ppm-2-5-p4082/|http://www.horticulturesource.com/images/CW508-new.jpg|37.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW509|4083|Accurate PPM 3.5.|Control Wizard Products' Accurate PPM 3.5Control Wizard Products is introducing a new line of waterproof hand held meters to the gardening industry. This meter uses a one step calibration procedure to for fast and accurate PPM readings. It uses the Control Wizard Products 1382 ppm calibration solution. The electrode is not replaceable, as it will give years of reliable service. It comes complete in a simulated leather storage pouch with lanyard, a screwdriver, batteries, a complete instruction manual and a one-year warranty with receipt. Reads a nutrient solution up to 2000 ppm. Waterproof to one meter.|http://www.horticulturesource.com/control-wizard-accurate-ppm-3-5--p4083/|http://www.horticulturesource.com/images/cw509infopic1.jpg|46.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW510|4084|EC Dipstick.|EC Dipstick (formerly Nutrawand) by Control Wizard Products.New Name! New Label! Same Easy to Use Meter! Now with the 4 most popular scales: EC, CF, 500:1ppm, and 700:1ppm! No matter what meters you have used in the past, the EC Dipstick can read just like it. EC Dipstick (formerly Nutrawand) by Control Wizard Products dissolved salts pen, measures conductivity in both PPM, EC and CF. No calibration required, auto on/off. Very Nice!Over the years Control Wizard Products' EC Dipstick (formerly Nutrawand) has proven to be a rugged performer and great conductivity meter that everyone that owns one seems to love. Why, well they just seem to work harder the more demanding the situation. It's great for greenhouse use where high moisture situations exist or in classrooms where students are learning how to care for tools. The meter is waterproof to 1 meter for short periods of time. Its new electronics allow for hassle free operation. It does not require calibration like other meters. Calibration is all handled internally within its electronic brain. Each time you replace batteries it recalibrates itself. Wow, how cool is that? The savings in calibration solution over 5 years alone makes this meter a real buy. It measures conductivity in 4 scales: EC, CF and 2 PPM scales. EC stands for electrical conductivity, PPM stands for parts per million and CF stands for conductivity factor. Conductivity factor is simply ten times the EC reading for easy reference (1.5 EC reads 15 CF). Another feature that's a real advantage is with just a glance, the EC Dipstick allows you to easily read all scales at once. Well-placed blinking LED lights show you the conductivity of your nutrient from a brightly printed scale. This is one instance that new technology has actually made the product easier and more fun to use instead of hideously more complicated and time consuming. Want icing on your cake? This meter uses three inexpensive AA flashlight batteries. This meters worthiness should be a no-brainer for all growers young and old. This meter comes with a limited two-year warranty with your original sales receipt.|http://www.horticulturesource.com/control-wizard-ec-dipstick--p4084/|http://www.horticulturesource.com/images/cw510infopic1.jpg|59.1600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW512|4085|TDS Wand|TDS Wand CW512The TDS Wand replaces the EC Dipstick as the new flagship PPM meter from CWP Instruments. The lighted display is large and easy to read. There are no mistakes when the temperature compensating microchip quickly senses the electro-conductivity of the nutrient solution or water sample and automatically freezes the displayed reading. PPM, EC and CF scales are easily accessed by easy to read buttons.Cutting edge electronic circuitry keeps the meter in calibration for extended periods of time.The TDS Wand is waterproof from the electrode up to the display, water resistant from the display to the battery cap. Uses a common 9 volt alkaline battery for power. Use 1382 PPM (500 PPM - 1 EC) calibration Solution. Affordable quality for long-term customer satisfaction.|http://www.horticulturesource.com/control-wizard-tds-wand-p4085/|http://www.horticulturesource.com/images/CW512-2.jpg|55.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY1742|4086|DiST 5 Waterproof Meter.|Hanna Instruments model HI 98311. TDS ( reads in PPM), EC and temperature meter tester. Waterproof and designed to float. Feels great in your hand. Very stylish and modern. Low battery indicator. A great buy.|http://www.horticulturesource.com/hanna-instruments-dist-5-waterproof-meter--p4086/|http://www.horticulturesource.com/images/hy1742thumb.jpg|111.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|HY180|4088|GroChek TDS Meter.|Hanna Gro Chek TDS Meter. Locate probe in your nutrient tank or reservoir for continuous TDS reading. A very handy device for the seriious gardener. Measured in PPM.Hanna Product Number: HI983301N|http://www.horticulturesource.com/hanna-instruments-grochek-tds-meter--p4088/|http://www.horticulturesource.com/images/hy180infopic1.jpg|94.6100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||NT100|4089|Analog TDS Meter.|Myron L Analog TDS Meter. Displayed in PPM. Use the 1500 ppm standard solution for agriculture. 1 EC or 10 CF = 700 ppm.|http://www.horticulturesource.com/analog-tds-meter--p4089/|http://www.horticulturesource.com/images/nt100infopic1.jpg|237.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716049|4523|COMMERCIAL TRUNCHEON METER (EC/PPM)|Bluelab Commercial TruncheonEC(0.4-6.0), CF(4-60) and ppm scales (TDS and 700 scale)Fully waterproofFactory calibratedAuto sense on and offNo external switches or adjustable buttonsBattery life minimum 1 year (or shelf life of battery)5 year Bluelab guaranteeThe Bluelab Commercial Truncheon Nutrient Meter measures the strength of a nutrient solution, just like the Bluelab Truncheon Nutrient Meter. The Commercial Truncheon Nutrient Meter however, has been designed for hydroponic crops that require a higher than normal EC or CF requirement during their growing cycle. A reading of up to 6.0 EC or 60 CF is available.|http://www.horticulturesource.com/bluelab-commercial-truncheon-meter-ec-ppm--p4523/|http://www.horticulturesource.com/images/716049.jpg|92.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716114|4612|OAKTON 1413 CONDUCTIVITY SOL. 500ML|Oakton 1413 TDS Solution|http://www.horticulturesource.com/oakton-oakton-1413-conductivity-sol-500ml-p4612/|http://www.horticulturesource.com/images/716114.jpg|15.0700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716104|4613|WATERPROOF ECOTESTR 1|Oakton EcoTestr PH1Economical, pocket-sized meterWaterproof, dust proof housing that floatsEasy to use; push-button calibration with auto buffer recognitionIncludes transparent electrode cover / sample cupPush-button calibration, HOLD function, and error messagesRange: 0.0 to 14.0 pHPower: four 1.5 V button cell batteries (included)|http://www.horticulturesource.com/oakton-waterproof-ecotestr-1-p4613/|http://www.horticulturesource.com/images/716104.jpg|49.2700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716106|4616|WATERPROOF ECOTESTR 2|Oakton EcoTestr PH2Automatic temperature compensationWaterproof, dust proof housing that floatsEasy to use, push-button calibration with auto buffer recognitionLow-cost pocket-sized meterIncludes transparent electrode cover / sample cupPush-button calibration, HOLD function, and error messagesRange: 0.0 to 14.0 pHPower: four 1.5 V button cell batteries (included)|http://www.horticulturesource.com/oakton-waterproof-ecotestr-2-p4616/|http://www.horticulturesource.com/images/716106.jpg|48.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716030|4686|OAKTON WATERPROOF EC TESTR LOW|OAKTON WATERPROOF EC TESTR LOW - discontinued item only 41 in stock|http://www.horticulturesource.com/oakton-oakton-waterproof-ec-testr-low-p4686/||25.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|BAT-LT44|4904|BATTERIES, FOR PH / TDS METERS, 10 BATTERIES PER CARD, SOLD IN CASES OF 20 ONLY!|Replacement Battery 10/card (BAT-LR44)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $11.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-batteries-for-ph-tds-meters-10-batteries-per-card-sold-in-cases-of-20-only--p4904/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|11.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|CAL-1|4932|PH 4.01 CALIBRATION/BOX OF 25 SACHETS|pH 4.01 Calibration/Box of 25 Sachets (CAL-1)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $21.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ph-4-01-calibration-box-of-25-sachets-p4932/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|18.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|CAL-2|4933|PH 7.01 CALIBRATION/BOX OF 25 SACHETS|pH 7.01 Calibration/Box of 25 Sachets (CAL-2)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $21.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ph-7-01-calibration-box-of-25-sachets-p4933/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|18.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|CAL-3|4934|EC 1.413 CALIBRATION/BOX OF 25 SACHETS|EC 1.413 Calibration/Box of 25 Sachets (CAL-3)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $21.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ec-1-413-calibration-box-of-25-sachets-p4934/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|16.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|CAL-4|4935|TDS 1500 CALIBRATION/BOX OF 25 SACHETS|TDS 1500 Calibration/Box of 25 Sachets (CAL-4)FOR PH-EC-TDS METER About the meters: The Milwaukee 3 in 1 Meter is the Cadillac of meters. It measures pH, EC and TDS (PPM) with one probe. PH is measured from 1-14, EC from 0-10 and TDS from 0-5000. Uses one 9 volt battery (included). Two year warranty on the meter, and a 6 month warranty on the probe. Replacement probes are also available. Calibration solutions are available below. You can use either the 1.413 solution for EC or the 1500 TDS solution. You do not need both because when you calibrate EC, the TDS is also calibrated, and vice-versa. Manufacturer's Product Information 2007 MSRP Each $24.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-1500-calibration-box-of-25-sachets-p4935/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|24.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|CAL-5|4936|TDS 1382 CALIBRATION/BOX OF 25 SACHETS|TDS 1382 Calibration/Box of 25 Sachets (CAL-5)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $21.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-1382-calibration-box-of-25-sachets-p4936/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|18.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-001|5091|MILWAUKEE PH WATERPROOF PEN|Milwaukee pH Waterproof Pen (MTR-001)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $71.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-ph-waterproof-pen-p5091/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|71.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-002|5092|MILWAUKEE EC WATERPROOF PEN|Milwaukee EC Waterproof Pen (MTR-002)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $73.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-ec-waterproof-pen-p5092/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|73.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-003|5093|MILWAUKEE TDS WATERPROOF PEN|Milwaukee TDS Waterproof Pen (MTR-003)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $73.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-tds-waterproof-pen-p5093/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|73.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-004|5094|MILWAUKEE PH CONSTANT MONITOR METER|Milwaukee pH Constant Monitor Meter (MTR-004)MILWAUKEE CONSTANT MONITORING METERS This Milwaukee series of EC, TDS (PPM) and pH Constant Monitoring Meters are designed to constantly monitor your solutions. They all feature a removable 12 volt power supply, and replaceable probes with a 6 foot cable. They have a setpoint that is selected by turning a knob on the front to the desired pH or TDS level, and if your solution exceeds (on the pH meter) or is lower (on the TDS and EC meter) than your setpoint, the meter alarm light will turn on. The EC and TDS monitor have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $100.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-ph-constant-monitor-meter-p5094/|http://www.horticulturesource.com/images/Milwaukee Monitors.JPG|66.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-006|5096|MILWAUKEE TDS CONSTANT MONITOR METER|Milwaukee TDS Constant Monitor Meter (MTR-006)MILWAUKEE CONSTANT MONITORING METERS This Milwaukee series of EC, TDS (PPM) and pH Constant Monitoring Meters are designed to constantly monitor your solutions. They all feature a removable 12 volt power supply, and replaceable probes with a 6 foot cable. They have a setpoint that is selected by turning a knob on the front to the desired pH or TDS level, and if your solution exceeds (on the pH meter) or is lower (on the TDS and EC meter) than your setpoint, the meter alarm light will turn on. The EC and TDS monitor have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $100.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-tds-constant-monitor-meter-p5096/|http://www.horticulturesource.com/images/Milwaukee Monitors.JPG|111.8800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-007|5097|MILWAUKEE 3 IN 1 METER|Milwaukee 3 in 1 meter (MTR-007)PH-EC-TDS METER The Milwaukee 3 in 1 Meter is the Cadillac of meters. It measures pH, EC and TDS (PPM) with one probe. PH is measured from 1-14, EC from 0-10 and TDS from 0-5000. Uses one 9 volt battery (included). Two year warranty on the meter, and a 6 month warranty on the probe. Replacement probes are also available. Calibration solutions are available below. You can use either the 1.413 solution for EC or the 1500 TDS solution. You do not need both because when you calibrate EC, the TDS is also calibrated, and vice-versa. Manufacturer's Product Information 2007 MSRP Each $209.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-3-in-1-meter-p5097/|http://www.horticulturesource.com/images/Milwaukee 3 in 1.JPG|208.3900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-009|5099|Milwaukee pH Portable Meter|Milwaukee pH Portable Meter (MTR-009)MILWAUKEE PORTABLE METERS The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets. Manufacturer's Product Information 2007 MSRP Each $104.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-ph-portable-meter-p5099/|http://www.horticulturesource.com/images/Milwaukee Portable.JPG|103.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-010|5100|Milwaukee EC Portable Meter|Milwaukee EC Portable Meter (MTR-010)MILWAUKEE PORTABLE METERS (each sold separately) The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets. MTR-010 Milwaukee EC Portable Meter MTR-011 Milwaukee TDS Portable Meter Manufacturer's Product Information 2007 MSRP Each $106.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-ec-portable-meter-p5100/|http://www.horticulturesource.com/images/MTR-010-new.jpg|73.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-011|5101|Milwaukee TDS Portable Meter|Milwaukee TDS Portable Meter (MTR-011)MILWAUKEE PORTABLE METERS (each sold separately) The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets. MTR-010 Milwaukee EC Portable Meter MTR-011 Milwaukee TDS Portable Meter Manufacturer's Product Information 2007 MSRP Each $106.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-milwaukee-tds-portable-meter-p5101/|http://www.horticulturesource.com/images/MTR-010-new.jpg|73.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-REEC|5102|REPLACEMENT ELECTRODE FOR EC PEN|Replacement Electrode for EC Pen (MTR-REEC)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $49.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-electrode-for-ec-pen-p5102/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|48.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-REPH|5103|REPLACEMENT ELECTRODE FOR PH PEN|Replacement Electrode for pH Pen (MTR-REPH)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temperature compensation for accurate readings. The TDS pen will measure from 0 to 2000 P.P.M. and the EC pen will measure from 0.00 to 10.00 EC. They have a 2 year warranty on the pen and 6 month warranty on the electrode. Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated at 7.01 and/or 4.01. Each pen comes complete with 3 batteries Manufacturer's Product Information 2007 MSRP Each $39.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-electrode-for-ph-pen-p5103/|http://www.horticulturesource.com/images/MILWAUKEE WATERPROOF PENS.JPG|35.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-RP3|5104|REPLACEMENT PROBE, 3' CABLE|Replacement Probe, 3' Cable (MTR-RP3)PH-EC-TDS METER The Milwaukee 3 in 1 Meter is the Cadillac of meters. It measures pH, EC and TDS (PPM) with one probe. PH is measured from 1-14, EC from 0-10 and TDS from 0-5000. Uses one 9 volt battery (included). Two year warranty on the meter, and a 6 month warranty on the probe. Replacement probes are also available. Calibration solutions are available below. You can use either the 1.413 solution for EC or the 1500 TDS solution. You do not need both because when you calibrate EC, the TDS is also calibrated, and vice-versa. Manufacturer's Product Information 2007 MSRP Each $89.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-probe-3-cable-p5104/|http://www.horticulturesource.com/images/Milwaukee 3 in 1.JPG|89.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-RPEC|5105|EC Replacement Probe, 3' Cable|EC Replacement Probe, 3' Cable (MTR-RPEC)MILWAUKEE PORTABLE METERS The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets. Manufacturer's Product Information 2007 MSRP Each $59.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ec-replacement-probe-3-cable-p5105/|http://www.horticulturesource.com/images/Milwaukee Portable.JPG|50.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-RPPH|5106|6' REPLACEMENT PROBE FOR PH CONSTANT MONITOR METER|6' Replacement Probe for pH Constant Monitor Meter (MTR-RPPH)MILWAUKEE CONSTANT MONITORING METERS This Milwaukee series of EC, TDS (PPM) and pH Constant Monitoring Meters are designed to constantly monitor your solutions. They all feature a removable 12 volt power supply, and replaceable probes with a 6 foot cable. They have a setpoint that is selected by turning a knob on the front to the desired pH or TDS level, and if your solution exceeds (on the pH meter) or is lower (on the TDS and EC meter) than your setpoint, the meter alarm light will turn on. The EC and TDS monitor have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $49.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-6-replacement-probe-for-ph-constant-monitor-meter-p5106/|http://www.horticulturesource.com/images/Milwaukee Portable.JPG|57.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-RPTDS|5107|TDS Replacement Probe, 3' Cable|TDS Replacement Probe, 3' Cable (MTR-RPTDS)MILWAUKEE PORTABLE METERS The Milwaukee series of EC, TDS (PPM) and pH Portable Meters are designed to allow you to monitor your nutrient solutions. They are all 9v battery operated for portability. The batteries last approximately 300 hours of use. They feature replaceable probes with a 3 foot cable. The EC and TDS monitors have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Calibration solutions for these monitors come in a box of 25 sachets. Manufacturer's Product Information 2007 MSRP Each $59.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-replacement-probe-3-cable-p5107/|http://www.horticulturesource.com/images/Milwaukee Portable.JPG|59.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|PHT-STRIP|5118|PH TEST STRIPS, 100 STRIPS PER VIAL|pH Test Strips. (PHT-STRIP)PH TEST STRIPS pH test Strips are quick and easy to use. Just touch a strip to your nutrient solution, and match the color of the strip to the color chart. Works in seconds. They come with about 100 strips per vial. Manufacturer's Product Information 2007 MSRP Each $4.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ph-test-strips-100-strips-per-vial-p5118/|http://www.horticulturesource.com/images/pH Test Strips.JPG|2.6900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729004|5243|AMMONIA ALERT|Seachem Ammonia Alert1 YEAR MONITORAmmonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. It lasts over a year. Marine or freshwater use.)|http://www.horticulturesource.com/seachem-ammonia-alert-p5243/|http://www.horticulturesource.com/images/729004.jpeg|6.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729002|5244|PH ALERT|Seachem pH Alert6 MONTH MONITOR pH Alert is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.8 and 8.6. Freshwater Only.|http://www.horticulturesource.com/seachem-ph-alert-p5244/|http://www.horticulturesource.com/images/729002.jpeg|6.5900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729006|5245|MULTITEST PHOSPHATE|Seachem Multi*Test Phosphate75 TESTS This kit measures inorganic phosphate down to 0.05 mg/L, producing a unique easy to read yellow-green-blue color range in marine and freshwater.|http://www.horticulturesource.com/seachem-multitest-phosphate-p5245/|http://www.horticulturesource.com/images/729006.jpeg|12.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729008|5246|MULTITEST PH and ALKALINITY|Seachem Multi*Test Marine pH and Alkalinity75 TESTS MultiTest: Marine ph and Alkalinity features a unique dye that has a pronounced color change between 8.0 and 8.3, making it the easiest kit on the market to read in that critical range. Alkalinity may be read from the same sample in 0.5 meq/L increments|http://www.horticulturesource.com/seachem-multitest-ph-alkalinity-p5246/|http://www.horticulturesource.com/images/729008.jpeg|12.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729010|5247|MULTITEST AMMONIA|Seachem Multi*Test Ammonia75 TESTS This kit measures total (NH3 and NH4+) and free ammonia (NH3 only) down to 0.05 mg/L and is virtually interference free in marine and fresh water. Free ammonia is the toxic form of ammonia (vs. ionized Ammonia NH4+ which is non-toxic) and thus it is much more important to keep an eye on the level of free ammonia in your system.|http://www.horticulturesource.com/seachem-multitest-ammonia-p5247/|http://www.horticulturesource.com/images/729010.jpeg|12.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729012|5248|MULTITEST NITRITE/NITRATE|Seachem Multi*Test Nitrite/Nitrate75 TESTS This kit measures nitrite down to 0.2 mg/L and nitrate down to 2 mg/L in marine or freshwater.|http://www.horticulturesource.com/seachem-multitest-nitrite-nitrate-p5248/|http://www.horticulturesource.com/images/729012.jpeg|12.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729014|5249|MULTITEST MARINE|Seachem Multi*Test Marine Basic75 TESTS This kit combines the Marine pH and Alkalinity, Ammonia and Nitrite and Nitrate kits into one kit.|http://www.horticulturesource.com/seachem-multitest-marine-p5249/|http://www.horticulturesource.com/images/729014.jpeg|31.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729018|5250|MULTITEST IODIDE|Seachem Multi*Test Iodine/Idodide75 TESTS This kit measures iodine or iodide to less than 0.005 mg/L. Seachem stands alone in offering this important test to the reef aquarian.|http://www.horticulturesource.com/seachem-multitest-iodide-p5250/|http://www.horticulturesource.com/images/729018.jpeg|12.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729016|5251|REEF STATUS CALCIUM TEST|Seachem Reef Status Calcium50 TESTS This kit measures all types of calcium, including gluconate calcium. The method is based on specific titration with a unique indicator. Measures in increments of 5 mg/L. Each kit runs 150 tests.|http://www.horticulturesource.com/seachem-reef-status-calcium-test-p5251/|http://www.horticulturesource.com/images/729016.jpeg|27.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Seachem|729154|5252|REEF STATUS MAG. TEST|Seachem Reef Status Magnesium and Carbonate/borate Alkalinity75 DETERMINATIONS FOR EACH TEST Four kits in one! Tests for magnesium through a titration based procedure in increments of 12.5 mg/L. Tests for carbonate alkalinity, borate alkalintiy and total alkalinity in 0.1 meq/L resolution through a titration based procedure. The kit resolves borate from carbonate and, along with magnesium, this presents a clear picture of the tank's buffering capacity as well as a very reliable determination of the critical carbonate content required for coral and coraline growth.|http://www.horticulturesource.com/seachem-reef-status-mag-test-p5252/|http://www.horticulturesource.com/images/729154.jpeg|34.4400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-006|5349|Groand#8217;Chek Combo pH/EC Wall Mount Meter|GROand#8217;CHEK PH/EC METER WALL MOUNTThese meters are ideal for agricultural,horticultural and hydroponics applicationswhere pH and EC levels need to be continuouslymonitored for optimal plant growth. Thesewall-mount meters feature a larger, easy-to-readLCD that displays pH and EC readingssimultaneously.MSRP: $182.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-gro-8217-chek-combo-ph-ec-wall-mount-meter-p5349/|http://www.horticulturesource.com/images/wall mount unit.JPG|163.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-004|5350|Hanna pH/EC/TDS meter (Model HI9813-0)|HANNA PH/EC/TDS METERThe HIMTR-004 (Model HI9813-0) is a rugged all around waterproof meter for easypH/EC/TDS measurements. The HIMTR-005 (Model HI9813-6) has allthe popular features of the HIMTR-004 and will alsodisplay degrees C with the press of a button. The HIMTR-005has an added Cal-Check feature that can assessthe calibration status of the specialized probe inseconds. Accuracy is ensured with ATC and anadvanced sensor which completely eliminatespolarization and oxidation problems. Comescomplete with probe, battery, calibration, cleaning andCal-Check solutions.MSRP: $219.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ph-ec-tds-meter-model-hi9813-0--p5350/|http://www.horticulturesource.com/images/hi9813-0.jpeg|234.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-RP3|5351|Replacement Probe for pH/EC/TDS|FOR HANNA PH/EC/TDS METERReplacement Probe for pH/EC/TDSThe HIMTR-004 is a rugged all around waterproof meter for easypH/EC/TDS measurements. The HIMTR-005 has allthe popular features of the HIMTR-004 and will alsodisplay degrees C with the press of a button. The HIMTR-005has an added Cal-Check feature that can assessthe calibration status of the specialized probe inseconds. Accuracy is ensured with ATC and anadvanced sensor which completely eliminatespolarization and oxidation problems. Comescomplete with probe, battery, calibration, cleaning andCal-Check solutions.MSRP: $114.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-probe-for-ph-ec-tds-p5351/|http://www.horticulturesource.com/images/4 in 1 meter.jpg|132.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-005|5352|Hanna pH/EC/TDS meter with Cal Check Feature (Model HI9813-6)|HANNA PH/EC/TDS METERwith Cal Check FeatureThe HIMTR-004 (Model HI9813-0) is a rugged all around waterproof meter for easypH/EC/TDS measurements. The HIMTR-005 (Model HI9813-6) has allthe popular features of the HIMTR-004 and will alsodisplay degrees C with the press of a button. The HIMTR-005has an added Cal-Check feature that can assessthe calibration status of the specialized probe inseconds. Accuracy is ensured with ATC and anadvanced sensor which completely eliminatespolarization and oxidation problems. Comescomplete with probe, battery, calibration, cleaning andCal-Check solutions.MSRP: $258.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ph-ec-tds-meter-with-cal-check-feature-model-hi9813-6--p5352/|http://www.horticulturesource.com/images/4 in 1 meter.jpg|210.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-RP4|5353|Replacement Probe for pH/EC/TDS with Cal Check|FOR HANNA PH/EC/TDS METER with Cal Check FeatureReplacement Probe for pH/EC/TDS with Cal CheckThe HIMTR-004 is a rugged all around waterproof meter for easypH/EC/TDS measurements. The HIMTR-005 has allthe popular features of the HIMTR-004 and will alsodisplay degrees C with the press of a button. The HIMTR-005has an added Cal-Check feature that can assessthe calibration status of the specialized probe inseconds. Accuracy is ensured with ATC and anadvanced sensor which completely eliminatespolarization and oxidation problems. Comescomplete with probe, battery, calibration, cleaning andCal-Check solutions.MSRP: $111.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-probe-for-ph-ec-tds-with-cal-check-p5353/|http://www.horticulturesource.com/images/4 in 1 meter.jpg|132.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-001|5354|Hanna pH/Temperature Waterproof Pen (pHep4 Meter)|Hanna pH/Temperature Waterproof Pen (pHep4 Meter)HANNA WATERPROOF PENSHanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $102.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ph-temperature-waterproof-pen-phep4-meter--p5354/|http://www.horticulturesource.com/images/pens.jpg|108.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-REPH|5355|Replacement Electrode for Hanna pH Pen (pHep4 Meter)|HANNA WATERPROOF PENSReplacement Electrode for pH Pen (pHep4 Meter)Hanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $58.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-electrode-for-hanna-ph-pen-phep4-meter--p5355/|http://www.horticulturesource.com/images/pens.jpg|72.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-002|5356|Hanna EC/TDS/Temperature Waterproof Pen (Dist5 Meter)|Hanna EC/TDS/Temperature Waterproof Pen (Dist5 Meter)HANNA WATERPROOF PENSHanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $118.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ec-tds-temperature-waterproof-pen-dist5-meter--p5356/|http://www.horticulturesource.com/images/pens.jpg|126.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-003|5357|Hanna pH/EC/TDS/Temperature Waterproof Pen (Combo Meter)|Hanna pH/EC/TDS/Temperature Waterproof Pen (Combo Meter)HANNA WATERPROOF PENSHanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $197.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ph-ec-tds-temperature-waterproof-pen-combo-meter--p5357/|http://www.horticulturesource.com/images/pens.jpg|175.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-REEC|5358|Replacement Electrode for Hanna EC/TDS Pen (Dist5 Meter)|HANNA WATERPROOF PENSReplacement Electrode for EC/TDS PenHanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $58.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-electrode-for-hanna-ec-tds-pen-dist5-meter--p5358/|http://www.horticulturesource.com/images/pens.jpg|72.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-RE3|5359|Replacement Electrode for Hanna pH/EC/TDS Pen (Combo Meter)|HANNA WATERPROOF PENSReplacement Electrode for pH/EC/TDS PenHanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof penhas a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The CombopH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instruments pens offerreplaceable graphite electrode, temperature in degrees C or degrees F, automatic temperature compensation with adjustable batterylevel indicator, stability indicator, automatic shut-off and automatic calibration all in a floating waterproof casing.MSRP: $58.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-replacement-electrode-for-hanna-ph-ec-tds-pen-combo-meter--p5359/|http://www.horticulturesource.com/images/pens.jpg|71.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HIMTR-007|5361|Hanna pH/TDS/Temperature meter|HANNA PH/TDS/TEMPERATURECONTINUOUS READ METERDesigned for continuous monitoring of pH, TDS andtemperature. It is simple to install and canbe placed above the sample to be tested. pH, TDSand temperature measurements are simultaneouslydisplayed on three backlit LCDs which can be easilyviewed at a distance - even in low light. This meansno more switching between parameters.MSRP: $231.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hanna-ph-tds-temperature-meter-p5361/|http://www.horticulturesource.com/images/pH tds monitor 2.JPG|231.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-008|5362|Hand Held Refractometer|REFRACTOMETERThis revolutionary hand held refractometer lets you seeexactly how plants are using nutrients. Put leaf scrapings onthe sensor and read the results immediately which reveal thepercentage of sugar present in the sample.MSRP: $111.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-hand-held-refractometer-p5362/|http://www.horticulturesource.com/images/Refractor.JPG|98.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716855|6001|HANNA PH 1500PPM CAL SOL. 16 oz 12/CASE|Hanna 1500PPM and 1413 uS-CM Calibration SolutionsMSRP: $19.49|http://www.horticulturesource.com/hanna-instruments-hanna-ph-1500ppm-cal-sol-16-oz-12-case-p6001/|http://www.horticulturesource.com/images/716855.jpeg|11.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716860|6002|HANNA PH 1413 uS/CM CAL SOL 16OZ 12/CASE|Hanna 1500PPM and 1413 uS-CM Calibration SolutionsMSRP: $19.49|http://www.horticulturesource.com/hanna-instruments-hanna-ph-1413-us-cm-cal-sol-16oz-12-case-p6002/|http://www.horticulturesource.com/images/716855.jpeg|11.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716865|6003|HANNA PH/TDS PEN BATTERIES 12/PACK|Hanna Batteries For PH-TDS Pens 12 PackMSRP: $19.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-tds-pen-batteries-12-pack-p6003/|http://www.horticulturesource.com/images/716865.jpeg|14.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716820|6004|HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)|Hanna Combo pH/EC/TDS/Temperature Tester With Low Range EC (Model HI 98129)The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted.The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (▀). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more!MSRP: $191.95|http://www.horticulturesource.com/hanna-instruments-hanna-waterproof-ph-ec-tds-temp-hi98129--p6004/|http://www.horticulturesource.com/images/716820.jpeg|110.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716831|6005|HANNA REPLACEMENT PH PROBE (HI73127) Special Order|FOR Hanna Combo pH/EC/TDS/Temperature Tester With Low Range EC (Model HI 98129)The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted.The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (▀). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more!MSRP: $54.95|http://www.horticulturesource.com/hanna-instruments-hanna-replacement-ph-probe-hi73127-special-order-p6005/|http://www.horticulturesource.com/images/716820.jpeg|40.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716825|6006|HANNA DIST 5 EC/TDS WATERPROOF METER (HI98311)|Hanna DiST 5 Waterproof(Low Range) EC/TDS/Temperature Tester (Model HI 98311)The original DiST (Dissolved Solids Tester) was first introduced in 1986 by HANNA. Since then, Conductivity and Total Dissolved Solids measurements have never been easier. DiST's ease-of-use, in combination with its affordability, made it the standard in EC and TDS measurement. HANNA continues the tradition of innovation with the DiST 5. For this series, we have included all the features you have asked for and more! The DiST 5 6 includes features such as a replaceable graphite electrode, adjustable TDS ratio, temperature in degrees C or degrees F, automatic temperature compensation (ATC) with adjustable ▀, battery level indicator, stability indicator, automatic shut-off and automatic calibrating all in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC/TDS/Temperature measurements!MSRP: $123.95|http://www.horticulturesource.com/hanna-instruments-hanna-dist-5-ec-tds-waterproof-meter-hi98311--p6006/|http://www.horticulturesource.com/images/716825.jpeg|93.3800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716826|6007|HANNA REPLACEMENT PROBE (HI73311) Special Order|FOR Hanna DiST 5 Waterproof(Low Range) EC/TDS/Temperature Tester (Model HI 98311)The original DiST (Dissolved Solids Tester) was first introduced in 1986 by HANNA. Since then, Conductivity and Total Dissolved Solids measurements have never been easier. DiST's ease-of-use, in combination with its affordability, made it the standard in EC and TDS measurement. HANNA continues the tradition of innovation with the DiST 5. For this series, we have included all the features you have asked for and more! The DiST 5 6 includes features such as a replaceable graphite electrode, adjustable TDS ratio, temperature in degrees C or degrees F, automatic temperature compensation (ATC) with adjustable ▀, battery level indicator, stability indicator, automatic shut-off and automatic calibrating all in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC/TDS/Temperature measurements!MSRP: $66.95|http://www.horticulturesource.com/hanna-instruments-hanna-replacement-probe-hi73311-special-order-p6007/|http://www.horticulturesource.com/images/716825.jpeg|48.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716800|6008|HANNA PH/EC/TDS TEMP CONTINUES COMBO METER (HI991404)|Hanna Grochek Combo pH/EC/TDS/Temperature Monitor (Model HI 991404)The Combo HI 991404 meter is designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural applications with a single instrument. These indicators feature a large, dual-level, backlit LCD to give you instantaneous readings of pH, EC or TDS and temperature, even from a distance.At startup, these indicators perform a self-check to assure proper working condition. HI 991404 stability indicator and hold features prompt the user when to take the reading and freezes the display for easy and accurate recording.Calibration and temperature compensation is automatic, while the EC/TDS conversion factor and temperature coefficient (▀) are user adjustable for application-specific measurements.These instruments are supplied with an advanced, non-clogging double junction pH electrode and a rugged conductivity probe that will withstand even the most aggressive environments. The instruments are powered by a 12 volt dc transformer and are easy to install and use.MSRP: $194.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-ec-tds-temp-continues-combo-meter-hi991404--p6008/|http://www.horticulturesource.com/images/716800.jpeg|143.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716801|6009|HANNA REPLACEMENT PH PROBE (HI1293) Special Order|FOR Hanna Grochek Combo pH/EC/TDS/Temperature Monitor (Model HI 991404)The Combo HI 991404 meter is designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural applications with a single instrument. These indicators feature a large, dual-level, backlit LCD to give you instantaneous readings of pH, EC or TDS and temperature, even from a distance.At startup, these indicators perform a self-check to assure proper working condition. HI 991404 stability indicator and hold features prompt the user when to take the reading and freezes the display for easy and accurate recording.Calibration and temperature compensation is automatic, while the EC/TDS conversion factor and temperature coefficient (▀) are user adjustable for application-specific measurements.These instruments are supplied with an advanced, non-clogging double junction pH electrode and a rugged conductivity probe that will withstand even the most aggressive environments. The instruments are powered by a 12 volt dc transformer and are easy to install and use.MSRP: $111.95|http://www.horticulturesource.com/hanna-instruments-hanna-replacement-ph-probe-hi1293-special-order-p6009/|http://www.horticulturesource.com/images/716800.jpeg|90.7000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716805|6010|HANNA PH INDICATOR W/ ELECTRODE (HI981401N)|Hanna Grochek Water Resistant pH IndicatorHI 981401N has been designed to meet the Grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. The housing is water-resistant and features a molded eye which allows installation right above the sample to be monitored.Measurements are highly accurate and can be verified with one or two point calibrations. With a 12 Volt DC power supply included with the meter, low battery failures are never an issue. The electrode is interchangeable and the connector is well-protected behind a waterproof sheathing. The meter is supplied with a stainless steel probe, preventing potential grounding problems and ensuring extended electrode life.The gel-filled pH electrode has been specially designed to address the needs of growers. Its design guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc.MSRP: $111.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-indicator-w-electrode-hi981401n--p6010/|http://www.horticulturesource.com/images/716805.jpeg|92.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716810|6012|HANNA PH/TDS/TEMP MONITOR (HI981504/7)|Hanna pH-TDS_TEMP Monitor Model Hi 981504-7Designed for continuous monitoring of pH, TDS and temperature, the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance - even in low light. This means no more switching between parameters.The HI 1286 gel-filled pH electrode is provided with a waterproof sheath to protect the BNC connector. The unique design of the electrode provides longer life in aggressive solutions. The HI 7634 TDS probe is easy to clean and requires little maintenance. Measurements are accurate and the meter can be calibrated at one or two points for pH and at a single point for TDS. Temperature range is factory calibrated.MSRP: $244.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-tds-temp-monitor-hi981504-7--p6012/|http://www.horticulturesource.com/images/716810.jpeg|154.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716806|6013|HANNA PH REPLACEMENT PROBE 6.6' (HI1286) Special Order|FOR Hanna pH-TDS_TEMP Monitor Model Hi 981504-7Designed for continuous monitoring of pH, TDS and temperature, the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance - even in low light. This means no more switching between parameters.The HI 1286 gel-filled pH electrode is provided with a waterproof sheath to protect the BNC connector. The unique design of the electrode provides longer life in aggressive solutions. The HI 7634 TDS probe is easy to clean and requires little maintenance. Measurements are accurate and the meter can be calibrated at one or two points for pH and at a single point for TDS. Temperature range is factory calibrated.MSRP: $61.95|http://www.horticulturesource.com/hanna-instruments-hanna-ph-replacement-probe-6-6-hi1286-special-order-p6013/|http://www.horticulturesource.com/images/716810.jpeg|49.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716840|6016|HANNA PHEP METER (HI98107)|Hanna PHEP Tester (Model HI 98107)The HI 98107 (pHep), which is the result of over two decades of research and manufacturing experience, is the updated version of our widely popular 96107 (pHep). Today the redesigned pHep series feature a rugged and ergonomically enhanced casing that fits comfortably in your hand and a larger LCD which makes it easier to read at any angle. With the latest innovation of a non-clogging fiber junction the new pHep meters last much longer. Simply pull out 1-2 mm (1/8") of the junction fiber to completely renew the junction.The pHep offers a Range of 0.0 to 14.0 pH and an Accuracy of +/-0.1 pH. This tester is calibrated manually to 2 points.MSRP: $55.95|http://www.horticulturesource.com/hanna-instruments-hanna-phep-meter-hi98107--p6016/|http://www.horticulturesource.com/images/716840.jpeg|37.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716833|6017|HANNA PRIMO TDS TESTER|Hanna Primo TDS TesterThe Primo TDS tester provides a fast and dependable way to measure the Total Dissolved Solids in your water samples. It is ideally suited for the rigorous demands of water quality professionals, who will appreciate the practicality of Primo's easy-to-read LCD when demonstrating the before and after results of conditioning and filtration systems. Temperature is compensated automatically to ensure the readings are consistent to the standard or reference temperature.Operating and routine maintenance has never been easier. Primo TDS uses a single button at the top of the meter. Press it once and the meter is powered and ready for use. Press and hold the button for a few seconds and Primo automatically enters calibration mode. Simply open a sachet of the calibration solution, dip the probe and within seconds the meter recognizes the calibration solution and calibrates itself! Maximum battery life is managed by Primo's power microprocessor, which automatically turns it of after 5 minutes.MSRP: $22.95|http://www.horticulturesource.com/hanna-instruments-hanna-primo-tds-tester-p6017/|http://www.horticulturesource.com/images/716833.jpeg|27.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716835|6018|HANNA PORTABLE PH/EC/TDS METER (HI9813-0)|Hanna Waterproof pH/EC/TDS Meter (Model HI 9813-0)HI 9813-0 allows you to measure pH, EC (conductivity) and TDS with just one instrument! This meter has a full-spectrum pH measurement range.The EC range goes to 4.00 mS/cm. In the TDS range, both instruments use a conversion factor from 0.56 to 0.72 for fertilizer readings, to ensure your measurements fully conform to industry standards.The specially engineered HI 1285-0 probe is interchangeable and the pH electrode utilizes a fiber junction and gel electrolyte which are particularly suitable when used in fertilizer solutions.HI 9813-0 and HI 9813-5 measure TDS in the 0 to 1999 ppm range.HI 9813-5 also performs temperature measurements, with the special probe HI 1285-5.MSRP: $244.95|http://www.horticulturesource.com/hanna-instruments-hanna-portable-ph-ec-tds-meter-hi9813-0--p6018/|http://www.horticulturesource.com/images/716835.jpeg|191.1000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716836|6019|HANNA REPLACEMENT PROBE (HI1285-0) Special Order|FOR Hanna Waterproof pH/EC/TDS Meter (Model HI 9813-0)HI 9813-0 allows you to measure pH, EC (conductivity) and TDS with just one instrument! This meter has a full-spectrum pH measurement range.The EC range goes to 4.00 mS/cm. In the TDS range, both instruments use a conversion factor from 0.56 to 0.72 for fertilizer readings, to ensure your measurements fully conform to industry standards.The specially engineered HI 1285-0 probe is interchangeable and the pH electrode utilizes a fiber junction and gel electrolyte which are particularly suitable when used in fertilizer solutions.HI 9813-0 and HI 9813-5 measure TDS in the 0 to 1999 ppm range.HI 9813-5 also performs temperature measurements, with the special probe HI 1285-5.MSRP: $139.95|http://www.horticulturesource.com/hanna-instruments-hanna-replacement-probe-hi1285-0-special-order-p6019/|http://www.horticulturesource.com/images/716835.jpeg|107.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716830|6020|HANNA PHEP 4 WATERPROOF METER (HI98127)|Hanna Waterproof PHEP 4 Tester With Replaceable Electrode (Model HI 98127)When HANNA introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep's ease-of-use in combination with its affordability made it possible for non-technical and technical personnel alike to measure pH on the spot, accurately and inexpensively throughout a variety of industries. Since its introduction, over 1 million pHeps have gone to satisfied customers around the world.We at HANNA have always valued the comments and suggestions coming from our customers. For this series, we have included all of the features you have asked for and more! The pHep 4 and pHep 5 include features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.MSRP: $109.95|http://www.horticulturesource.com/hanna-instruments-hanna-phep-4-waterproof-meter-hi98127--p6020/|http://www.horticulturesource.com/images/716830.jpeg|65.2700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716160|6022|HM WATERPROOF EC/TDS/TEMP COMBO METER|HM Digital Waterproof EC-TDS-TEMP Combo Meter COM-100Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients. Waterproof housing. Measurement Range: 0-9990 ÁS; 0-8560 ppm (auto-ranging). Digital Calibration (push button). Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The COM-100 meter is calibrated with a 1413 ÁS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries and lanyard.One year warranty.MSRP: $74.95|http://www.horticulturesource.com/hm-digital-hm-waterproof-ec-tds-temp-combo-meter-p6022/|http://www.horticulturesource.com/images/716160.jpeg|50.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716175|6023|EC/TDS REPLACEMENT PROBE Special Order|For HM Digital Waterproof EC-TDS-TEMP Combo Meter COM-100Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients. Waterproof housing. Measurement Range: 0-9990 ÁS; 0-8560 ppm (auto-ranging). Digital Calibration (push button). Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The COM-100 meter is calibrated with a 1413 ÁS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries and lanyard.One year warranty.MSRP: $46.23|http://www.horticulturesource.com/hm-digital-ec-tds-replacement-probe-special-order-p6023/|http://www.horticulturesource.com/images/716160.jpeg|24.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716165|6024|HM Digital Waterproof pH Meter Model PH-200|Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with digital fine tuning. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibrated with three-point calibration to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, no screwdriver needed. Includes a cap, batteries, lanyard and pH 7.0 buffer.|http://www.horticulturesource.com/hm-digital-hm-digital-waterproof-ph-meter-model-ph-200-p6024/|http://www.horticulturesource.com/images/716165.jpeg|65.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716180|6025|HM Digital Replacement Probe for pH Model PH-200|Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with digital fine tuning. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibrated with three-point calibration to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, no screwdriver needed. Includes a cap, batteries, lanyard and pH 7.0 buffer.|http://www.horticulturesource.com/hm-digital-hm-digital-replacement-probe-for-ph-model-ph-200-p6025/|http://www.horticulturesource.com/images/716180-n.jpg|29.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716642|6026|PH600-AQ PH METER 10/CS|Milwaukee pH Tester Model pH 600 AQMilwaukeeand#8217;s most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration ,and accuracy of_+ 0.2 pH. Battery Life: 700 hours. Calibration solution sold separately. 30 day warranty.MSRP: $33.95|http://www.horticulturesource.com/milwaukee-instruments-ph600-aq-ph-meter-10-cs-p6026/|http://www.horticulturesource.com/images/716642.jpeg|21.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716108|6028|OAKTON MULTI PTTESTER 35 (PH/TDS/TEMP)|Oakton MULTI PT Testr 35One pocket sized meter for pH, TDS and temperature!Up to 5 point pH calibration with NIST or USA auto buffer recognition. Great for water, laboratory or plant use, this multi Testr features single-junction pH electrodes for longer life and wider range of sample compatibility. Pin-style conductivity sensors feature stainless steel electrodes for chemical resistance and durability. Replaceable sensor module saves you money by reusing the meter body. Advanced features include auto-shutoff, user-adjustable temperature coefficient, self-adjusting TDS, and low-battery indicator.MSRP: $178.95|http://www.horticulturesource.com/oakton-oakton-multi-pttester-35-ph-tds-temp--p6028/|http://www.horticulturesource.com/images/716108.jpeg|135.7700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|eco-4529|6252|Tower of Power 6 Outlet Surge Protector|Tower of Power (eco-4529)Tower of PowerHydrofarm's Tower of Power Introducing Tower of Power -The Remedy for Packed Power StripsSay goodbye to over-crowded, under-utilized power strips. Hydrofarm's TOWER OF POWER offers 6 outlets with enough room to accommodate even the bulkiest timers and adapters. The Tower of Power will handle all you can throw at it. In your home office it will organize all your computers and peripheral devices. In the shop it's sturdy enough to power your tool array. And for the hydroponics gardener, the Tower of Power will accommodate all your timers.The TOWER OF POWER features: Enough space between outlets to allow you to plug in all your timers and gadgets - NO MORE WASTED OUTLETS! Easy accessibility for all your appliances 6-foot, heavy-duty power cord delivers electricity where it's needed most Sturdy construction-can be mounted on walls or under furniture8 120V outlets totalOn/Off switchTower of Power - Hydrofarm's Tower of Power offers 6 outletswith enough room to accommodate even the bulkiest timers andadapters. Enough space between outlets to allow you to plug inall your timers and gadgets - no more wasted outlets. 6', 14/3grounded, heavy-duty power cord, with surge protection to helpsafeguard your electric devices. 120V, 15 amp rated.SKU: TMTOP6 Weight: 4.3 lbs.Package Dimensions: 6.6L x 6.7W x 11.0HSuggested Retail: $39.95 Manufacturer's Product Information MSRP $39.95|http://www.horticulturesource.com/hydrofarm-tower-of-power-6-outlet-surge-protector-p6252/|http://www.horticulturesource.com/images/eco-4529.jpg|27.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5523A|6260|Hanna Conductivity Soil Test Pen (HI 98331)|Hanna Conductivity Soil Test Pen (HI 98331) (eco-5523A)Hanna Soil Test Pen -The HI 98331 takes quick and accuratereadings directly in soil. It isthe only meter available that will takeconductivity readings directly from thesoil without creating a soil solutionfor testing. The meter also measurestemperature and the conductivityreadings are compensated for temperaturewith the sensor incorporatedinto the probe. Manufacturer's Product Information MSRP $125|http://www.horticulturesource.com/hanna-instruments-hanna-conductivity-soil-test-pen-hi-98331--p6260/|http://www.horticulturesource.com/images/eco-5523A.jpg|102.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|eco-5519|6265|Pro pH Test Kit (12/cs)|Pro pH Test Kit (12/cs) (eco-5519)Pro pH Test KitPro pH Test Kit - This handy kit is included with Hydrofarm's largergarden systems. A simple measurement of nutrient solution will givepH accuracy within 0.5. Includes a color scale, test vial and indicatorsolution. Manufacturer's Product Information MSRP $5.95|http://www.horticulturesource.com/hydrofarm-pro-ph-test-kit-12-cs--p6265/|http://www.horticulturesource.com/images/eco-5519.jpg|5.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|eco-2373|6268|Active Air 2-Way Meter (12/case)|Active Air 2-Way Meter (12/case) (eco-2373)2-Way Moisture H Meter Active Air Environment MetersGardeners can conveniently test their moisture, and pH levels with the handy ActiveAir 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate.DO NOT LEAVE IN SOIL. CLEAN PRONGS AFTER EACH USE.2-Way Meter - With the ActiveAir 2-Way (moisture H) your customer's plants will look and feel theirbest. Moisture Meter measures moisture levels ona scale of 1 (dry) to 10 (moist). pH is measured ona scale on 0 - 10. This durable, easy-to-read meterrequires no batteries.SKU: MGMP1 Weight: 1.0 lbs.Package Dimensions: 4.4L x 3.8W x 1.2HSuggested Retail: $7.95 Manufacturer's Product Information MSRP $7.95|http://www.horticulturesource.com/hydrofarm-active-air-2-way-meter-12-case--p6268/|http://www.horticulturesource.com/images/eco-2373.jpg|4.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|eco-2374|6269|Active Air 3-Way Meter (12/case)|Active Air 3-Way Meter (12/case) (eco-2374)ActiveAir 3 - Way Meter Active Air Environment MetersGardeners can conveniently test their moisture, light, and pH levels with the handy ActiveAir 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), light readings range from 0 (low light) to 2000 (very strong light), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate.DO NOT LEAVE IN SOIL. CLEAN PRONGS AFTER EACH USE.3-Way Meter - Gardeners can conveniently test theirmoisture, light, and pH levels with the handy ActiveAirTM3-Way Meter. Moisture readings register on a scale of0 (dry) to 10 (moist), light readings range from 0 (lowlight) to 2000 (very strong light), and pH readings between pH 0 (acidic) topH 10 [basic] are represented. The durable, easy-to-read tester is suitablefor indoors or out and needs no batteries to operate.SKU: MGMLP1 Weight: 1.0 lbs.Package Dimensions: 4.4L x 3.8W x 1.2HSuggested Retail: $9.95 Manufacturer's Product Information MSRP $9.95|http://www.horticulturesource.com/hydrofarm-active-air-3-way-meter-12-case--p6269/|http://www.horticulturesource.com/images/eco-2374.jpg|5.7800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|MTR-014|7459|pH600 Meter|PH METER (MTR-014)MILWAUKEE PH600Milwaukee's most affordable, fullrange pH meter with arange from 0.0 - 14.0 ph. Manufacturer's Product Information 2009 MSRP $29.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-ph600-meter-p7459/|http://www.horticulturesource.com/images/MTR-014.jpg|29.0700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716336|7795|BLUELAB GUARDIAN MONITOR|Bluelab Guardian MonitorIn just one glance it measures all three critical parameters for successful growth pH, conductivity and temperature.Adjustable brightness display.Large easy to read, Plant Safe green LED displays.Selectable values for conductivity and temperature.Simple push button pH calibration system.No calibration required for conductivity and temperature.Silent alarm for both high and low settings.Settings retained when power lost (non-volatile memory).Temperature compensation.An international power supply.Water resistant design.2 year warranty (6 months on probe).MSRP: $345.00|http://www.horticulturesource.com/bluelab-bluelab-guardian-monitor-p7795/|http://www.horticulturesource.com/images/716336.jpeg|260.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Oakton|716115|7796|WATERPROOF ECOTESTR TDS LOW|Oakton Ecotestrand#8482; TDS LowNew OAKTON ECOTestr TDS Low pocket meter features a large ergonomically designed display so that you can easily view measurements at a glance. The stainless steel electrodes are both rugged and chemical resistant, for use in a variety of applications. Other features include ATC (Automatic Temperature Compensation), Hold Function, it is completely waterproof, and has a transparent plastic cap that can be used as a container for calibration or measurement purposes.Range: 0-1990 ppm.Resolution: 10 ppm.Accuracy: 1% Full Scale.Conversion Factor: 0.4 to 1.MSRP: $82.95|http://www.horticulturesource.com/oakton-waterproof-ecotestr-tds-low-p7796/|http://www.horticulturesource.com/images/716115.jpeg|47.7100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5523|8115|Hanna pHep 1 pH Pen (HI 98107)|Hanna pHep 1 pH Pen (HI 98107) (eco-5523)pHep pHep, the standard in pH measurement with 0.1 pH accuracy, has 2 point calibration, large LCD, pull out replenishable junction and 700 hour battery life. The pHep pH tester features a casing that is more rugged and has been ergonomically enhanced to better fit your hand. The pHep comes with a protective cap that can be used as a measurement vessel. The electrode is replaceable by the operator. With the latest innovation of a non-clogging fiber junction the new pHep meters last much longer. Calibrates on 7.0 and 4.0 solutions.pHep 1pHep 1 the standard inpH meaurement with 0.1 -pH accuracy. Has 2-pointcalibration, large LCD,and 700 hours of batterylife. One year warranty.SKU: HI98107 Weight: 1.0 lbs.Package Dimensions: 8.3L x 2.7W x 1.4HSuggested Retail: $62.95 Manufacturer's Product Information MSRP $69.95|http://www.horticulturesource.com/hanna-instruments-hanna-phep-1-ph-pen-hi-98107--p8115/|http://www.horticulturesource.com/images/eco-5523.jpg|46.9200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5522C|8116|Hanna pHep 5 pH Pen (HI 98128)|Hanna pHep 5 pH Pen (HI 98128) (eco-5522C)Hanna Gro'CHEK pHEP 5 Meter The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.pHep 5pHep 5 is the mostadvanced pH tester onthe market today. Has apH readout of 0.01, automaticshutoff, replaceablepH electrode cartridge,stability indicator andautomatic calibration. 1year warranty.SKU: HI98128 Weight: 1.0 lbs.Package Dimensions: 8.2L x 2.7W x 1.2HSuggested Retail: $93.00 Manufacturer's Product Information MSRP $109.95|http://www.horticulturesource.com/hanna-instruments-hanna-phep-5-ph-pen-hi-98128--p8116/|http://www.horticulturesource.com/images/eco-5522C.jpg|93.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5524|8117|Hanna Dist 1 TDS Pen (HI 98300)|Hanna Dist 1 TDS Pen (HI 98300) (eco-5524)Dist 1Dist 1 are reliable,pocket-sized instrumentsthat will give you quick andaccurate readings of TDS.Comes complete withprotective cap, screwdriver,batteries and instructions.One year warranty. Manufacturer's Product Information MSRP $69.95|http://www.horticulturesource.com/hanna-instruments-hanna-dist-1-tds-pen-hi-98300--p8117/|http://www.horticulturesource.com/images/eco-5524.jpg|46.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5522A|8118|Hanna Dist 5 TDS Pen (HI 98311)|Hanna Dist 5 TDS Pen (HI 98311) (eco-5522A)DiST 5 EC/TDS Meter Dual-level LCDReplaceable Graphite Electrode CartridgeAutomatic CalibrationDist 5Dist 5 will accuratelymeasure EC and TDS.Features include replaceableelectrode, adjustableTDS ratio, temperature indegrees C or degrees F, automatic temperaturecompensation,battery level indicator andautomatic shutoff. 2 yearwarranty.SKU: HI98311 Weight: 1.0 lbs.Package Dimensions: 8.4L x 2.7W x 1.3H|http://www.horticulturesource.com/hanna-instruments-hanna-dist-5-tds-pen-hi-98311--p8118/|http://www.horticulturesource.com/images/eco-5522A.jpg|91.7700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5522D|8119|Replacement probe for pHep 5 (HI 73127)|Replacement probe for pHep 5 (HI 73127) (eco-5522D)Replacement probe for pHep 5 (HI 73127) Manufacturer's Product Information MSRP $59.95|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-phep-5-hi-73127--p8119/|http://www.horticulturesource.com/images/eco-5522D.jpg|44.1200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5522E|8120|Replacement probe for Dist 5 (HI 73311)|Replacement probe for Dist 5 (HI 73311) (eco-5522E)Replacement probe for Dist 5 (HI 73311) Manufacturer's Product Information MSRP $59.95|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-dist-5-hi-73311--p8120/||48.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5529C|8126|Hanna Combo Pen - pH/EC/TDS/Temp. (HI 98129)|Hanna Combo Pen - pH/EC/TDS/Temp. (HI 98129) (eco-5529C)Combo pH/EC/TDS/C/PPM TesterDual-level LCDReplaceable pH Electrode CartridgeAutomatic CalibrationHanna Combo PenThe HI 98129 combo waterprooftesters offer the highest accuracy inmeasurements with a single tester.Will measure pH, EC/TDS and temperature.SKU: HI98129 Weight: 1.0 lbs.Package Dimensions: 8.2L x 2.7W x 1.3HSuggested Retail: $197.95 Manufacturer's Product Information MSRP $197.95|http://www.horticulturesource.com/hanna-instruments-hanna-combo-pen-ph-ec-tds-temp-hi-98129--p8126/|http://www.horticulturesource.com/images/eco-5529C.jpg|136.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5528B|8127|Hanna Combo Meter- pH/EC/TDS/Temp. (HI 9813-0)|Hanna Combo MeterThe portable HI 9813 Hanna Combo Meter allows the grower to professionally measure pH, EC and PPM with a single portable meter. pH range is 0 to 14 and PPM range is 0 to 1990. Meter comes with a rugged replaceable multi-probe sensor. The HI 9813 is powered by a 9V battery. Manufacturer's Product Information MSRP $249.95|http://www.horticulturesource.com/hanna-instruments-hanna-combo-meter-ph-ec-tds-temp-hi-9813-0--p8127/|http://www.horticulturesource.com/images/eco-5528B-ph_hanna_meter.jpg|189.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5528A|8128|Hanna Portable pH/EC/TDS/Temp Meter w/ CAL CHECK (HI 9813-6N)|Hanna Combo MeterHI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries.This meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument.HI 9813-6 includes all the features of the HI 9813-5 while incorporating our exclusive CAL CHECK feature. CAL CHECK allows the user to easily check the pH probe calibration status at any time.This instrument utilizes the HI 1285 series pH/EC/TDS/temperature probe. This probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions.Order Information:HI 9813-6 is supplied with HI 1285-6 multiparameter probe, HI 70007 pH 7.01 calibration solution sachet, HI 70442 1500 ppm (mg/L) calibration solution sachet, HI 70031 1413 ÁS/cm calibration solution sachet, 700521 electrode cleaning solution sachets (2), battery, instructions and rugged carrying case.|http://www.horticulturesource.com/hanna-instruments-hanna-portable-ph-ec-tds-temp-meter-w-cal-check-hi-9813-6n--p8128/|http://www.horticulturesource.com/images/eco-5528A-new.jpg|198.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5529A|8129|Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)|Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7) (eco-5529A)Continuous pH/TDS/temp Monitor Designed for continuous monitoring of pH, TDS and temperature the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance - even in low light. This means no more switching between parameters.The HI 1286 gel-filled pH electrode is provided with a waterproof sheath to protect the BNC connector. The unique design of the electrode provides longer life in aggressive solutions. The HI 7634 TDS probe is easy to clean and requires little maintenance. Measurements are accurate and the meter can be calibrated at one or two points for pH and at a single point for TDS. Temperature range is factory calibrated.Hanna TriMeterThe HI 981504 is designed for continuousmonitoring of pH, TDS andTemp. Simple to install, readings canbe viewed simultaneously on 3 backlitLCDs which can be easily viewed ata distance - even in low light.SKU: HI981504 Weight: 1.6 lbs.Package Dimensions: 8.2L x 2.7W x 1.2HSuggested Retail: $244.95 Manufacturer's Product Information MSRP $229.95|http://www.horticulturesource.com/hanna-instruments-hanna-tri-meter-ph-tds-temp-hi981504-7--p8129/|http://www.horticulturesource.com/images/eco-5529A.jpg|193.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5422C|8130|Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N)|Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) (eco-5422C)GroChek pH and TDS Combo Continuous Reading Meter Displays pH and EC SimultaneouslyAdjustable SetpointsSpace EfficientHanna Dual GrochekThe HI 981404N is ideal for hydroponicapplications where pH and TDSlevels need to be continuously monitored.These wall mount monitorsfeature a large, easy-to-read LCDthat displays pH and TDS readingssimultaneously.SKU: HI981404N Weight: 2.3 lbs.Package Dimensions: 7.8L x 7.8W x 5.4HSuggested Retail: $195.95 Manufacturer's Product Information MSRP $195.95|http://www.horticulturesource.com/hanna-instruments-dual-grochek-ph-tds-temp-continuous-monitoring-hi981404n--p8130/|http://www.horticulturesource.com/images/eco-5422C.jpg|147.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5422D|8131|Dual Grochek - Same as above - self calibrating (HI991404)|Dual Grochek - Same as above - self calibrating (HI991404) (eco-5422D)GroChek pH/EC/TDS/Temp. Combo Large, Dual-level Backlit LCDWaterproofAuto Calibration and pH Temp. ComputingHanna Dual GrochekThe HI 991404 continuously monitorspH/EC/TDS/Temp. in yournutrients. Comes with a rugged, noncloggingpH electrode and conductivityprobe that will stand up to the mostagressive environments. Dual-levelbacklit LCD.SKU: HI991404 Weight: 2.3 lbs.Package Dimensions: 7.8L x 7.2W x 5.3HSuggested Retail: $198.95 Manufacturer's Product Information MSRP $198.95|http://www.horticulturesource.com/hanna-instruments-dual-grochek-same-as-above-self-calibrating-hi991404--p8131/|http://www.horticulturesource.com/images/eco-5422D.jpg|173.0600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5522B|8132|Replacement probe for Combo Pen (HI 73127)|Replacement probe for Combo Pen (HI 73127) (eco-5522B)Replacement pH Electrode for HI98127, HI98128, HI98129, and HI98130Replacement pH Electrode for HI98127, HI98128, HI98129, and HI98130SKU: HI73127 Weight: 1.0 lbs.Package Dimensions: 5.7L x 2.7W x 1.1HSuggested Retail: $58.95 Manufacturer's Product Information MSRP $58.95|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-combo-pen-hi-73127--p8132/|http://www.horticulturesource.com/images/eco-5522B.jpg|40.8800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5528C|8133|Replacement probe for Combo Meter (HI 1285-0)|Replacement probe for Combo Meter (HI 1285-0) (eco-5528C)Replacement probe for Combo Meter (HI12850) Manufacturer's Product Information MSRP $114.95|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-combo-meter-hi-1285-0--p8133/|http://www.horticulturesource.com/images/eco-5528C.jpg|113.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716875|8334|HANNA GROCHEK pH 4.01 CALIBRATION SOLUNTION - 20 ML (CASE of 25) MODEL # HI 70004P (FULL CASE QUANTITIES ONLY)|Hanna 20 ml Packet SolutionHANNA PH 4.01 CALIBRATON SOL 20ML 25/CSMSRP: $1.29 each packet|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-ph-4-01-calibration-soluntion-20-ml-case-of-25-model-hi-70004p-full-case-quantities-only--p8334/|http://www.horticulturesource.com/images/716875.jpeg|18.6900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716876|8335|HANNA GROCHEK pH 7.01 CALIBRATION SOLUNTION - 20 ML (CASE of 25) MODEL # HI 70007P (FULL CASE QUANTITIES ONLY)|Hanna 20 ml Packet Solution HANNA PH 7.01 CALIBRATON SOL 20ML 25/CSMSRP: $1.29 each packet|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-ph-7-01-calibration-soluntion-20-ml-case-of-25-model-hi-70007p-full-case-quantities-only--p8335/|http://www.horticulturesource.com/images/716875.jpeg|19.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716877|8336|HANNA GROCHEK pH 10.01 CALIBRATION SOLUNTION - 20 ML (CASE of 25) MODEL # HI 700010P (FULL CASE QUANTITIES ONLY)|Hanna 20 ml Packet Solution HANNA PH 10.01 CALIBRATON SOL 20ML 25/CSMSRP: $1.29 each packet|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-ph-10-01-calibration-soluntion-20-ml-case-of-25-model-hi-700010p-full-case-quantities-only--p8336/|http://www.horticulturesource.com/images/716875.jpeg|19.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||716010|8340|EC SHAKE NUTRIENT METER|EC Shakeand#8482; Nutrient Meter EC SHAKE METERThis revolutionary EC meter is powered by a magnet instead of a battery! A gentle shaking action generates the energy to power this simple, yet sophisticated meter. With just a few easy steps you will get a quick andamp; accurate reading of the electrical conductivity (EC) of your nutrient solution. This patented meter will completely simplify your growing experience and success.Green LED display.No batteries required.Factory calibrated.Automatic temperature compensation.Automatic on/off function.Waterproof.1 year warranty.MSRP: $87.95|http://www.horticulturesource.com/ec-shake-nutrient-meter-p8340/|http://www.horticulturesource.com/images/716010.jpeg|52.7600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716190|8341|BLUELAB SOIL pH METER|BlueLab Soil pH MeterSOIL PH METERIf you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab Guarantee (6 month for probe).Quality soil pH probe included.Supplied in a lockable protective case.Calibration solutions included.Simple push button calibration.Auto turn off function (extends battery life).Large easy to read LCD display.Low battery indicator.2 x alkaline AAA batteries included.Lightweight and portable.MSRP: $245.00|http://www.horticulturesource.com/bluelab-bluelab-soil-ph-meter-p8341/|http://www.horticulturesource.com/images/716190.jpeg|157.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716192|8342|BLUELAB TRUNCHEON SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY)|For BlueLab Soil pH MeterSOIL PH METER REPLACEMENT PROBE ONLY(SO)About the meter:If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab Guarantee (6 month for probe).Quality soil pH probe included.Supplied in a lockable protective case.Calibration solutions included.Simple push button calibration.Auto turn off function (extends battery life).Large easy to read LCD display.Low battery indicator.2 x alkaline AAA batteries included.Lightweight and portable.MSRP: $105.00|http://www.horticulturesource.com/bluelab-bluelab-truncheon-soil-ph-replacement-probe-special-order-only--p8342/|http://www.horticulturesource.com/images/716190.jpeg|68.64|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716186|8343|HM INLINE DUAL TDS MONITOR|HM Digital In-Line Dual TDS Monitor Model DM-1 INLINE DUAL DM1 TDS MONITORDisplays TDS levels of the feed water and product water with in andamp; out electrode probes.Highly efficient and accurate due to its advanced microprocessor technology.Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.Dual Range 0-9990 ppm.Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.Comes equipped with Mur-lok Quick-Connect T-fittings.Installs quickly and easily. One year warranty.MSRP: $42.00|http://www.horticulturesource.com/hm-digital-hm-inline-dual-tds-monitor-p8343/|http://www.horticulturesource.com/images/716186.jpeg|27.7200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716870|8344|HANNA GROCHEK GROCHECK TDS MONITOR (MODEL HI 983301N)|Hanna GroCheck TDS Monitor (Model HI983301N) HANNA GRO'CHEK TDS MONITOR (HI 983301N)These state-of-the-art meters have been engineered with a host of features suited to the aggressive environments commonly found in agricultural applications; housings and cable connections have been sealed against vapor and humidity.With a 12 volt DC power supply included with the meter, low battery failures are never an issue. Locate the meter right above the sample to be monitored or take it with you for spot checking. Select HI 983301N for TDS measurements with the common 0.7 TDS conversion factor (4-4-2) or HI 983301N/5 which uses a 0.5 conversion factor.Both the TDS and EC meters come with a probe specifically made for horticulture and hydroponics applications. The probe compensates for temperature variations automatically, is easy to clean and is very stable, needing little maintenance.MSRP: $111.95|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-grocheck-tds-monitor-model-hi-983301n--p8344/|http://www.horticulturesource.com/images/716870.jpeg|79.2900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||716557|8348|Grower's Edge Wireless Remote Sensor|Grower's Edge Thermometer/Hygrometer with SensorLarge screen digital readout. Wireless sensor transmits up to 50 feet. Expandable to accept 2 additional sensors. Waterproof casing is chemical and UV resistant. Displays degrees in F or C. Wireless Sensor - For use with Grower's Edge Digital Thermometer and Hygrometer #716555. Transmits up to 50 feet. 2 AAA batteries included.Related item:716555 Grower's Edge Digital Thermometer / Hygrometer w/ Remote Sensor|http://www.horticulturesource.com/grower-s-edge-wireless-remote-sensor-p8348/|http://www.horticulturesource.com/images/716555.jpeg|15.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1892|8387|Replacement Probe(Electrode) for the MiniLab pH Meters|HY1892Replacement Probe(Electrode) for the MiniLab pH Meters. Fits both IQ120 and IQ125.|http://www.horticulturesource.com/replacement-probe-electrode-for-the-minilab-ph-meters-p8387/|http://www.horticulturesource.com/images/hy1892infopic1.jpg|64.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY189|8388|miniLab pH Meter (IQ125)|miniLab pH Meter(IQ125)Features:Silicon chip Non-Glass pH sensorProbe stores dry and needs no maintenanceMeasure samples as small as one drop1-, 2- or 3-point calibrationAutomatic temperature compensation (ATC)Large, easy-to-read displayFast response timeLow battery indicator with automatic power offOver 200 hour life on two watches batteriesError message on calibration errorsReplaceable reference electrode|http://www.horticulturesource.com/minilab-ph-meter-iq125--p8388/|http://www.horticulturesource.com/images/hy189infopic1.jpg|299.9375|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY188|8389|miniLab pH Meter (IQ120)|miniLab pH Meter(IQ120)Features:Silicon chip Non-Glass pH sensorProbe stores dry and needs no maintenanceMeasure samples as small as one drop1-point calibrationAutomatic temperature compensation (ATC)Large, easy-to-read displayFast response timeLow battery indicator with automatic power offOver 200 hour life on two watches batteriesError message on calibration errorsReplaceable reference electrode|http://www.horticulturesource.com/minilab-ph-meter-iq120--p8389/|http://www.horticulturesource.com/images/hy188infopic1.jpg|249.9375|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1881|8390|Calibration set for the MiniLab pH Meter (IQ120)|HY1881Calibration set for the MiniLab pH Meter (IQ120)|http://www.horticulturesource.com/calibration-set-for-the-minilab-ph-meter-iq120--p8390/|http://www.horticulturesource.com/images/hy1881infopic1.jpg|12.4375|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||HY1891|8391|Calibration set for the MiniLab pH Meter (IQ125)|HY1891Calibration set for the MiniLab pH Meter (IQ125)|http://www.horticulturesource.com/calibration-set-for-the-minilab-ph-meter-iq125--p8391/|http://www.horticulturesource.com/images/hy1891infopic1.jpg|21.1875|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716187|8439|HM HANDHELD TDS-3 TESTER|HM Digital Handheld TDS Tester Model TDS-3Ideal for commercial use. Includes a carrying case with belt clip.Highly efficient and accurate due to its advanced microprocessor technology.Hold Function: saves measurements for convenient reading and recording.Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.Measurement Range: 0-9990 ppm. Built-in digital thermometerDisplay: large and easy-to-read LCD screen.Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.Also available in "x 10" mode: reads in increments only of 10 ppm (0-9990 ppm).3 year warranty.|http://www.horticulturesource.com/hm-digital-hm-handheld-tds-3-tester-p8439/|http://www.horticulturesource.com/images/716187.jpeg|15.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716188|8440|HM INLINE AQUAPRO TDS WATER TESTER|HM Digital Aquapro TDS Water Tester Model AP-1Measures total dissolved solids (TDS) and temperature.Automatic Temperature Compensation (ATC)Water-resistant housingMeasurement Range: 0-5000 ppmDigital Calibration (push button)Auto-off function, data-hold function and low-battery indicator.Display: large and easy-to-read LCD screen includes simultaneous temperature reading.Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.Includes a cap and batteries.One year warranty.|http://www.horticulturesource.com/hm-digital-hm-inline-aquapro-tds-water-tester-p8440/|http://www.horticulturesource.com/images/716188.jpeg|23.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW506|8549|24-7 Nutrient Monitor Replacement PPM Probe|24-7 Nutrient Monitor Replacement PPM ProbeThis item is the replacement PPM probe for the 24-7 Nutrient Monitor.The 24-7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for easy access. Control Wizard has priced the new 24-7 Nutrient Meter to have the lowest MSRP of any constant read meter currently on the market. This low price will allow more first time growers to afford the quality and no hassle features of a constant read meter. All 24-7 meters sold in the year of 2006 will include 4-ounce bottles of buffer solutions for calibration.|http://www.horticulturesource.com/control-wizard-24-7-nutrient-monitor-replacement-ppm-probe-p8549/|http://www.horticulturesource.com/images/cw506infopic1.jpg|34.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716815|8784|HANNA GROCHEK WATERPROOF pH/EC/TDS TEMP METER W H ELECTRODE DIAGNOSTIC - HI9813-6|HANNA GROCHEK WATERPROOF pH/EC/TDS TEMP METER W H ELECTRODE DIAGNOSTIC - HI9813-6 (716815) Hanna Waterproof pH/EC/TDS Temp Meter W H Electrode Diagnostic HI 9813-6pH electrodes are commonly designed to produce and output signal equal to 0 mV when immersed in a solution with pH 7. But a constant output value at pH 7 occurs as a result of certain adverse events, such as: A broken bulb in the pH electrode, A short circuit in the cable or connector, or Magnetic force leakage in the cable or connector (for example, in case of excessive humidity).In these situations, the instrument displays a false reading at pH 7 and the user may not be aware that corrective measures are necessary; particularly if the user is anticipating a pH neutral reading. To avoid this problem, HANNA developed F.S.T. technology for HI 9813-6. With this special security system, a system failure will force a fixed value close to pH 4, rather than pH 7, and render the problem clearer to the user.For added confidence in your measurements, the meter is equipped with two LEDs and a "CHECK" button. While pressing this button, upon immersing the electrode in the Cal-Check solution HI 50021P, one of the LEDs will light up to indicate the status of the meter. The green LED ("OK") indicates the probe is working correctly, while the red LED ("CandC" Clean and Cal) indicates the electrode needs attention. Manufacturer's Product Information MSRP $259.95|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-waterproof-ph-ec-tds-temp-meter-w-ph-electrode-diagnostic-hi9813-6-p8784/|http://www.horticulturesource.com/images/716815.jpeg|257.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716816|8785|HANNA GROCHEK REPLACEMENT pH PROBE - HI1285-6 (SPECIAL ORDER ONLY)|HANNA GROCHEK REPLACEMENT pH PROBE - HI1285-6 (SPECIAL ORDER ONLY) (716816) FOR Hanna Waterproof pH/EC/TDS Temp Meter W H Electrode Diagnostic HI 9813-6pH electrodes are commonly designed to produce and output signal equal to 0 mV when immersed in a solution with pH 7. But a constant output value at pH 7 occurs as a result of certain adverse events, such as: A broken bulb in the pH electrode, A short circuit in the cable or connector, or Magnetic force leakage in the cable or connector (for example, in case of excessive humidity).In these situations, the instrument displays a false reading at pH 7 and the user may not be aware that corrective measures are necessary; particularly if the user is anticipating a pH neutral reading. To avoid this problem, HANNA developed F.S.T. technology for HI 9813-6. With this special security system, a system failure will force a fixed value close to pH 4, rather than pH 7, and render the problem clearer to the user.For added confidence in your measurements, the meter is equipped with two LEDs and a "CHECK" button. While pressing this button, upon immersing the electrode in the Cal-Check solution HI 50021P, one of the LEDs will light up to indicate the status of the meter. The green LED ("OK") indicates the probe is working correctly, while the red LED ("CandC" Clean and Cal) indicates the electrode needs attention. Manufacturer's Product Information MSRP $123.95|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-replacement-ph-probe-hi1285-6-special-order-only--p8785/|http://www.horticulturesource.com/images/716815.jpeg|81.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HMTDSEZ|9125|TDS-EZ Water Quality Tester|HM Digital Pens and Meters (HMTDSEZ)HM Digital Pens and MetersTDS and EC (each sold separately) The TDS-EZ Water Quality Tester is ideal for all basic water testing applications. The best value meter in the world! Fun, translucent blue housing is very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values.TDS-4 Pocket-Size Meters is the smallest and lightest TDS meter on the market. Saves measurements for convenient reading and recording and the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Includes a cap, batteries, lanyard, and pH 7.0 buffer. 3 year warranty.The TDS-4TM Pocket-Size Meter with Digital Thermometer includes an internal digital thermometer (celsius). Recommended for aquariums aquaculture, horticulture and hydroponics, pools and spas and water cooler professionals. Manufacturer's Product Information 2010 MSRP $23.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-ez-water-quality-tester-p9125/|http://www.horticulturesource.com/images/HMTDSEZ.jpg|20.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HMTDS4|9126|TDS-4 Pocket-Size Meter|HM Digital Pens and Meters (HMTDS4)HM Digital Pens and MetersTDS and EC (each sold separately) The TDS-EZ Water Quality Tester is ideal for all basic water testing applications. The best value meter in the world! Fun, translucent blue housing is very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values.TDS-4 Pocket-Size Meters is the smallest and lightest TDS meter on the market. Saves measurements for convenient reading and recording and the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Includes a cap, batteries, lanyard, and pH 7.0 buffer. 3 year warranty.The TDS-4TM Pocket-Size Meter with Digital Thermometer includes an internal digital thermometer (celsius). Recommended for aquariums aquaculture, horticulture and hydroponics, pools and spas and water cooler professionals. Manufacturer's Product Information 2010 MSRP $27.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-4-pocket-size-meter-p9126/|http://www.horticulturesource.com/images/HMTDSEZ.jpg|23.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|C.A.P. Custom Automated Products|HMTDST|9127|TDS Meter w/Thermometer|HM Digital Pens and Meters (HMTDST)HM Digital Pens and MetersTDS and EC (each sold separately) The TDS-EZ Water Quality Tester is ideal for all basic water testing applications. The best value meter in the world! Fun, translucent blue housing is very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values.TDS-4 Pocket-Size Meters is the smallest and lightest TDS meter on the market. Saves measurements for convenient reading and recording and the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Includes a cap, batteries, lanyard, and pH 7.0 buffer. 3 year warranty.The TDS-4TM Pocket-Size Meter with Digital Thermometer includes an internal digital thermometer (celsius). Recommended for aquariums aquaculture, horticulture and hydroponics, pools and spas and water cooler professionals. Manufacturer's Product Information 2010 MSRP $28.95|http://www.horticulturesource.com/c-a-p-custom-automated-products-tds-meter-w-thermometer-p9127/|http://www.horticulturesource.com/images/HMTDSEZ.jpg|22.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|eco-5518|9311|pH Control Kit|pH Control Kit (eco-5518)pH Control Kit Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution).SKU: GH1514 Weight: 1.5 lbs.Package Dimensions: 4.8L x 2.7W x 5.8HSuggested Retail: $17.20 Manufacturer's Product Information MSRP $17.2|http://www.horticulturesource.com/general-hydroponics-ph-control-kit-p9311/|http://www.horticulturesource.com/images/eco-5518.jpg|9.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|eco-5517|9312|pH Test Kit 1 oz.|pH Test Kit 1 oz. (eco-5517)pH Test Kit, 1 oz pH test kit. Contains pH test fluid and test stripsSKU: GH1515 Weight: 1.0 lbs.Package Dimensions: 5.5L x 2.6W x 1.0HSuggested Retail: $7.54 Manufacturer's Product Information MSRP $7.54|http://www.horticulturesource.com/general-hydroponics-ph-test-kit-1-oz--p9312/|http://www.horticulturesource.com/images/eco-5517.jpg|4.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|eco-5516|9313|pH Test Indicator 8 oz.|pH Test Indicator 8 oz. (eco-5516)pH Test Indicator 8 oz General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5mL of solution.SKU: GH1516 Weight: 1.0 lbs.Package Dimensions: 1.2L x 1.7W x 6.0HSuggested Retail: $10.76 Manufacturer's Product Information MSRP $10.76|http://www.horticulturesource.com/general-hydroponics-ph-test-indicator-8-oz--p9313/|http://www.horticulturesource.com/images/eco-5516-new.jpg|6.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5525|9410|Hanna Primo TDS Tester|The Primo series of testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. It is ideally suited for the rigorous demands of water quality professionals. Many professionals use the cabled version of the Primo when demonstrating the before and after results of conditioning and filtration systems.Temperature is compensated automatically to ensure the readings are consistent to the standard or reference temperature.Operating and routine maintenance has never been easier. Primo uses a single button for each parameter at the top of the meter. Press it once and the meter is powered and ready for use. Press and hold the button for a few seconds and Primo automatically enters calibration mode. Simply open a sachet of calibration solution, dip the probe in, and within seconds the meter recognizes the calibration solution and calibrates itself!Order Information:Primo 2 with direct probe connection is supplied with batteries and instructions. Primo Range: 0 to 1999 ppm (mg/L), Primo 2 Range: 0 to 1999 ppm (mg/L) and 0.0 to 60.0 degrees C, Primo 5 Range: 0 to 1999 ÁS/cm|http://www.horticulturesource.com/hanna-instruments-hanna-primo-tds-tester-p9410/|http://www.horticulturesource.com/images/eco-5525.jpg|40.8200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Trans Instruments|716020|9769|HortiCare pH Tester|HortiCare pH Tester (716020)HortiCare pH TesterThe function of a nutrient solution or fertilizer mixture is to supply the plant roots with water, oxygen and essential mineral elements in soluble form. The pH of nutrient solution decides the availability and absorption of nutrients by each species of plant. Every plant species has a preferred pH range in which it will grow best. Wrong pH nutrient solution results in retardation of growth and even death of the plant. Trans Instruments HortiCare pH check tester is specially designed with advanced features to ensure fast and accurate pH test, for the commercial as well as home growers. HOLD FUNCTION: Able to freeze display for ease of reading. BEEP FUNCTION: Able to beep to signal the beginning and end of each function. ONE-TOUCH CALIBRATION: Effortless calibration with a single touch of the button. AUTO-LOCK FUNCTION: Intelligent sensing of end reading when enabled. AUTO SHUT OFF: Automatic shut off to conserve battery when unit is idle. LOW BATTERY INDICATOR: Automatic alert to change battery when needed. OPERATING RANGE: 0 to 14.0 pH RESOLUTION: 0.1 pH ACCURACY: +/-0.2 pH BATTERY: 4 x 1.5V Button Cell (LR44). Manufacturer's Product Information MSRP $66.95|http://www.horticulturesource.com/trans-instruments-horticare-ph-tester-p9769/|http://www.horticulturesource.com/images/716020.jpg|52.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Trans Instruments|716021|9770|HortiCare Nutrient Check PPM|HortiCare Nutrient Check PPM (716021)HortiCare Nutrient Check PPMThe function of a nutrient solution or fertilizer mixture is to supply the plant roots with water, oxygen and essential mineral elements in soluble form. Each plant has its preferred nutrient concentration to facilitate the absorption process to the roots. Wrong concentration may result in wilting and suppresses plant growth. Trans Instruments HortiCare Nutrient concentration check tester is specially designed with advanced features to ensure fast and accurate concentration test, for the commercial as well as home growers. PRECISE PPM MEASUREMENT: Uses commercially acclaimed 700 measuring factor. AUTO-LOCK FUNCTION: Intelligent sensing of endpoint reading every time. ATC FUNCTION: Readings are automatically temperature compensated. BEEP FUNCTION: Able to beep to signal the beginning and end of each function. EASY CALIBRATION: Single button calibration. AUTO SHUT OFF: Automatically shuts off to conserve battery when unit is idle. LOW BATTERY INDICATOR: Automatic alert to change battery when needed. OPERATING RANGE: 0 to 1,990ppm. DISPLAY RESOLUTION: 10ppm. ACCURACY: +/-5% full scale. CALIBRATION POINT: 990ppm (KCl). BATTERY: 4 x 1.5V Button Cell (LR44 equiv.) Manufacturer's Product Information MSRP $71.95|http://www.horticulturesource.com/trans-instruments-horticare-nutrient-check-ppm-p9770/|http://www.horticulturesource.com/images/716021.jpg|56.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Trans Instruments|716023|9771|HortiStck 3 in 1 Multimeter|HortiStck 3 in 1 Multimeter (716023)HortiStick 3-in-1 MultimeterThe HortiStick 3-in-1 brings the best of technology into one sleek meter. It combines the measurement of the three most crucial parameters needed for a successful harvest: pH, Conductivity, and Temperature. Package content: 1x Main Unit, 1x Hand Strap, 1x Replaceable Probe, 1x Operations Manual, 4x AA Size Batteries. Simple and easy to use. Simultaneous display of pH and nutrient concentration. Replaceable sensor for prolonged meter usage. Auto endpoint sensing and display lock. Automatic temp. compensation. Rugged and water resistant. Push buttoncalibration with automatic shut-off. pH Range: 0-14.0, ppm Range: 0-1990, Temp range: 0-50 degrees C pH Resolution: 0.1pH, ppm Resolution: 10ppm, Temp. Resolution: 0.1 degrees C pH Accuracy: +/-0.2, ppm Accuracy: +/- 5% F.S., Temp. Accuracy 0.5 degrees C 1 year warranty. 716024 HortiStick Replacement Probe Manufacturer's Product Information MSRP $199.95|http://www.horticulturesource.com/trans-instruments-hortistck-3-in-1-multimeter-p9771/|http://www.horticulturesource.com/images/716023.jpg|131.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Trans Instruments|716024|9772|HortiStick Replacement Probe|HortiStick Replacement Probe (716024)HortiStick Replacement Probe ONLYFOR HortiStick 3-in-1 MultimeterAbout the HortiStick 3-in-1 brings the best of technology into one sleek meter. It combines the measurement of the three most crucial parameters needed for a successful harvest: pH, Conductivity, and Temperature. Package content: 1x Main Unit, 1x Hand Strap, 1x Replaceable Probe, 1x Operations Manual, 4x AA Size Batteries. Simple and easy to use. Simultaneous display of pH and nutrient concentration. Replaceable sensor for prolonged meter usage. Auto endpoint sensing and display lock. Automatic temp. compensation. Rugged and water resistant. Push buttoncalibration with automatic shut-off. pH Range: 0-14.0, ppm Range: 0-1990, Temp range: 0-50 degrees C pH Resolution: 0.1pH, ppm Resolution: 10ppm, Temp. Resolution: 0.1 degrees C pH Accuracy: +/-0.2, ppm Accuracy: +/- 5% F.S., Temp. Accuracy 0.5 degrees C 1 year warranty. Manufacturer's Product Information MSRP $116.95|http://www.horticulturesource.com/trans-instruments-hortistick-replacement-probe-p9772/|http://www.horticulturesource.com/images/716023.jpg|61.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716905|9827|Rapitest Digital Plus Moisture Meter|Newdigital technology take the guess out of determining the watering needsfor lawns, flowers, shrubs and houseplants. The Rapitest Digital Plus Rapitest Digital Plus Moisture MeterSoil Moisture Meter is programmed with moisture requirements for over150 vegetables, landscape plants, healthy perennials and vigorous houseplants. The meter's numeric format is easy to read. All results aredisplayed on the digital LCD screen, ranging from 0.0 to 9.9. Takes the guesswork out of watering your plants. Instant digital output for increased readability. Stores your own list of favorite plants. One year manufacturer warranty. MSRP: $21.99|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-digital-plus-moisture-meter-p9827/|http://www.horticulturesource.com/images/716905.jpg|13.0200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716900|9828|Rapitest Digital Moisture Meter|Rapitest Digital Moisture MeterRapitest Digital Moisture Meter tests for moisture at the roots - whereit matters - you no longer risk over watering a healthy plant justbecause the soil near the surface is dry or under-watering because itappears moist. Ideal for houseplants, window boxes, patio tubs andhanging baskets. Instant digital read-out. Checks soil moisture at root level. Helps prevent over and under watering. One year manufacturer warranty. MSRP: $10.99|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-digital-moisture-meter-p9828/|http://www.horticulturesource.com/images/716900.jpg|8.6900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716915|9829|Rapitest Digital Plus Soil pH Meter|Rapitest Digital Plus Soil pH MeterThe Rapitest Digital Plus Soil pH Meter is programmed with plant pHpreferences for over 400 fruits, vegetables, grasses and landscapeplants. The meter's numeric format is easy to read. All results aredisplayed on the digital LCD screen, ranging from 3.5 to 9.0. Measures the acidity or alkalinity of your soil. Instant digital output for increased readability. Stores your own list of favorite plants. One year manufacturers warranty. MSRP: $27.99|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-digital-plus-soil-ph-meter-p9829/|http://www.horticulturesource.com/images/716915.jpg|19.7700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716910|9830|Rapitest Digital Soil PH Meter|Rapitest Digital Soil PH MeterPlants need the correct pH level which controls how well plants utilizethe nutrients available in your soil. All plants have a pH preference,so it is important to know the pH level of your soil. You can chooseplants with the same pH preferences, avoid those that will not do wellin your soil, or know how to go about supplying their special growingneeds. By testing your soil, you determine it condition so that you canadjust pH more accurately, effectively and economically. Determines soil acidity/alkalinity. Use for vegetables, flowers, fruit or landscape plants. Batteries included. One year manufacturer warranty. MSRP: $12.99|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-digital-soil-ph-meter-p9830/|http://www.horticulturesource.com/images/716910.jpg|9.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716340|9843|Bluelab pH Meter|Bluelab pH MeterThe Bluelab pH Meter is used to accurately measure the pH value of asolution. Simply place the pH probe into the solution and the readingwill be displayed on the screen. As the meter is portable and does notneed a power supply to operate, it can be used anywhere and anytime tohelp you manage your crops' daily nutrient requirements. It is easy tocalibrate by using the push buttons on the meter and fresh Bluelabcalibration solutions. Supplied with standard Bluelab pH probe, solutions (sachets) and batteries. Range: 0.0 - 14.0 pH. Resolution: 0.1 pH. Accuracy @ 25 degrees C: +/- 0.1 pH. Power Source: 2 x AAA. Features: auto turn off, low battery indicator, over range and under range indicators, portable. 5 year Bluelab Guarantee.|http://www.horticulturesource.com/bluelab-bluelab-ph-meter-p9843/|http://www.horticulturesource.com/images/716340-2.png|138.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716798|9977|MILWAUKEE MARTINI PH55 PH/TEMP TESTER|Martini pH55/Temp Tester and ProbeIP67 Waterproof pH tester with large dual-level LCD that displays pH and temperature ( degrees C or degrees F). The large display shows readings in an extended range from 2.0 to 16.0 pH and simultaneously shows temperature from 5.0 to 105.0 degrees C or 23.0 to 221.0 degrees F. This tester has a stability indicator and hold function that freezes the display for easy and accurate recording. Complete with a temperature probe for faster and more precise temperature measurement, this tester compensates automatically for temperature. Calibration is made automatically in 1 or 2 points with memorized standards and NIST buffer sets. Auto power OFF saves battery power after non-use.The double injection electrode can be replaced in a very fast and simple way! The modular design allows easy electrode and battery replacement.MSRP: $82.15|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-martini-ph55-ph-temp-tester-p9977/|http://www.horticulturesource.com/images/716798.jpg|56.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716799|9978|MILWAUKEE MARTINI PH55 PH/TEMP PROBE ONLY|Probe Only FOR Martini pH55/Temp TesterIP67 Waterproof pH tester with large dual-level LCD that displays pH and temperature ( degrees C or degrees F). The large display shows readings in an extended range from 2.0 to 16.0 pH and simultaneously shows temperature from 5.0 to 105.0 degrees C or 23.0 to 221.0 degrees F. This tester has a stability indicator and hold function that freezes the display for easy and accurate recording. Complete with a temperature probe for faster and more precise temperature measurement, this tester compensates automatically for temperature. Calibration is made automatically in 1 or 2 points with memorized standards and NIST buffer sets. Auto power OFF saves battery power after non-use.The double injection electrode can be replaced in a very fast and simple way! The modular design allows easy electrode and battery replacement.MSRP: $49.50|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-martini-ph55-ph-temp-probe-only-p9978/|http://www.horticulturesource.com/images/716798.jpg|30.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW497|9987|Accurate pH 5|This rugged fixed electrode pH meter fits nicely in the hand and has upgraded electronics for fast and stable readings even when near electromagnetic fields. The 2 point (pH 4 and pH 7) calibration screws are located on the back and in the battery compartment. The meter has an auto OFF function and power saver circuitry for reliable readings time after time. It uses four 1.5 volt button type batteries. Retail Price: $59.95|http://www.horticulturesource.com/control-wizard-accurate-ph-5-p9987/|http://www.horticulturesource.com/images/CW497.jpg|55.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW499|9988|Accurate pH 9|This continuous pH monitor is rugged in design and function. The meter displays both pH and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and pH electrode for superior accuracy and reliability. Calibration screws are located on the front for easy and reliable accuracy and it is powered by a 120 volt ac to dc transformer. Retail Price: $106.95|http://www.horticulturesource.com/control-wizard-accurate-ph-9-p9988/|http://www.horticulturesource.com/images/CW499.jpg|107.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW513|9989|Accurate PPM 5|This is the match to the Accurate pH 5.0. It has a fixed electrode and fits the hand well. Upgraded electronics allow the meter to be used near electromagnetic fields with little if any interference. It displays a stable and accurate reading time after time with power saver circuitry and an auto OFF function. A one point calibration screw is located on the back of the meter and uses 1382 ppm/500 to 1 EC calibration solution. It uses four 1.5 volt button type batteries. Retail Price: $59.95|http://www.horticulturesource.com/control-wizard-accurate-ppm-5-p9989/|http://www.horticulturesource.com/images/CW513.jpg|55.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Control Wizard|CW514|9990|Accurate PPM 9|This continuous PPM monitor is rugged in design and function. The meter displays both PPM and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and PPM electrode for superior accuracy and reliability. A one point calibration screw is located on the front for easy and reliable accuracy and it is powered by a 120 volt ac to dc transformer. The ruggedly accurate PPM electrode is replaceable and its replacement cost is affordable and easily available. Retail Price: $106.95|http://www.horticulturesource.com/control-wizard-accurate-ppm-9-p9990/|http://www.horticulturesource.com/images/CW514.jpg|99.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||740865|10142|Bond 3 Way Soil Meter|Bond 3 Way Soil MeterMeasures moisture content of soil. Lets you know to water. Helps you determine if plant is getting adequate light. Helps you control pH level in soil. No batteries need. For indoor or outdoor use.|http://www.horticulturesource.com/bond-3-way-soil-meter-p10142/|http://www.horticulturesource.com/images/740865.png|6.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||740860|10161|Bond Moisture Meter|Bond Moisture MeterMeasures moisture content of soil. Lets you know when to water. No batteries needed. For indoor or outdoor use.|http://www.horticulturesource.com/bond-moisture-meter-p10161/|http://www.horticulturesource.com/images/740860.png|5.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|D-D The Aquarium Solution|531102|10314|Seawater RefractoMeter|Seawater RefractoMeter Almost all, if not all, of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true 'seawater'. Although seawater is mostly sodium chloride it also contains other elements such as magnesium and calcium that change the refractive index slightly and will give a slightly different result.The most common symptom of this difference in refractive index can be seen when mixing up salt as per salt manufacturer's instructions and achieving a solution strength where it appears, through testing, that the levels of elements are lower than stated by the manufacturer. In actual fact all of the levels are low as the salinity is not as high as the aquarist believes - we have all seen low Ca or Mg for a given SG with almost all brands of salt.It turns out that a 35ppt solution of true seawater has the same refractive index as a 36.5ppt solution of brine and so when using a brine/salt refractometer the salinity is likely to be low by 1.5ppt. This can be allowed for by the aquarist but only if they are aware of the difference.After extensive development, D-D's new refractometer addresses this issue, giving true salinity results when correctly calibrated and greater accuracy than previously attainable.Features: True calibration for Seawater measurement A New finer scale running from 20-40ppt salinity (SG 1.015 - 1.030) 20/20 calibration at room temperature for more consistency and accuracy in everyday use Full ATC (auto temperature compensation) ranging from 5 to 30 deg C MSRP: $65.95|http://www.horticulturesource.com/d-d-the-aquarium-solution-seawater-refractometer-p10314/|http://www.horticulturesource.com/images/531102.JPG|46.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716480|10480|Bluelab pH Pen|Bluelab pH Pen Measures pH and temperature. Selectable units for degrees C andamp; degrees F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration indicator. Hold reading function and low battery warning. Fully waterproof with auto off function. Automatic temperature compensation. Range: 0.0 - 14.0 pH/0-50 degrees C/32-122 degrees F. Resolution: 0.1 pH/1 degrees C/1 degrees F. Accuracy @ 25 degrees C: +/-0.1 pH. Battery type: 1 x AAA alkaline. Loop handle for easy dipping and hanging. 1 year Bluelab Guarantee. MSRP: $106.95|http://www.horticulturesource.com/bluelab-bluelab-ph-pen-p10480/|http://www.horticulturesource.com/images/716480.png|74.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716482|10481|Bluelab PPM Pen|Bluelab PPM PenMeasures conductivity and temperature.Selectable units for conductivity and temperature.Backlit LCD display with low battery warning.Successful calibration indicator and calibration is optional.Fully waterproof.Auto off function and hold reading function.Automatic temperature compensation.Loop handle for easy dipping and hanging.Units: EC, 500ppm, 700ppm, degrees C, degrees F.Range: 0.0 - 10.0 EC, 0-5000ppm (500ppm), 0-7000ppm (700ppm) and 0-50 degrees C/32 -122 degrees F.Resolution: 0.1 EC, 10ppm (500ppm), 10ppm (700ppm) and 1 degrees C/1 degrees F.Accuracy @ 25 degrees C: +/-0.1 EC (@ 2.77 EC), +/-50ppm (500ppm) (@ 1385ppm), +/-70ppm (700ppm) (@ 1940ppm) and +/-1 degrees C / +/-2 degrees F.Battery type: 1 x AAA alkaline.1 year Bluelab guarantee.MSRP: $89.95|http://www.horticulturesource.com/bluelab-bluelab-ppm-pen-p10481/|http://www.horticulturesource.com/images/716482.png|61.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|716155|10560|HM DIGITAL PH 80|HM Digital pH Meter Model PH-80 Resolution: pH 0.1 pH, 0.00 - 14.0 pH. Accurate to +/-0.1 pH. Hold button and auto shut-off. Automatic Calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased reference electrode - helps retain moisture. Batteries included.|http://www.horticulturesource.com/hm-digital-hm-digital-ph-80-p10560/|http://www.horticulturesource.com/images/716155.png|41.5800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||716135|11059|Myron L UltraPen PT1 (24/Cs)|UltraPen PT1 - Conductivity/TDS/SalinityThis instrument is designed to be extremely accurate, fast and simple touse in diverse water quality applications. Advanced features includethe ability to select from 3 different solution types that model thecharacteristics of the most commonly encountered types of water;proprietary temperature compensation and TDS conversion algorithms;highly stable microprocessor-based circuitry; user-intuitive design; andwaterproof housing. A true, one-handed instrument, the PT1 is easy tocalibrate and use. To take a measurement, you simply press a button thendip the pen in solution. Results display in seconds. Accuracy of +/-1% of reading (+/-.2% at Calibration Point). One year manufacturer warranty. Electrical Conductivity (EC) and TDS: 0.1 for 1.0 - 99.9 and#956;S or ppm 1 for 100 - 9999 and#956;S or ppm. Salinity: 0.0001 for 0.0010 - 0.0999 ppt, 0.001 for 0.100 - 9.999 ppt. Temperature: 0.1 degrees C or degrees F.|http://www.horticulturesource.com/myron-l-ultrapen-pt1-24-cs--p11059/|http://www.horticulturesource.com/images/716135.png|114.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716350|11167|Future Harvest Nutradip Nutrient Meter PPM Dual Power AC DC|Nutradip Nutrient MeterNutradip Nutrient Meters are the reliable way to measure the strengthof your gardens nutrient supply. It is a continuous monitoring meterwith automatic temperature compensation and dc power built in forportability. Lightweight, portable and splash resistant. Wall mount or hand held -AC andamp; DC powered. Easy to read plant friendly display. Temperature compensated Food Grade Probe.|http://www.horticulturesource.com/fhd-future-harvest-development-future-harvest-nutradip-nutrient-meter-ppm-dual-power-ac-dc-p11167/|http://www.horticulturesource.com/images/716350.png|72.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716355|11168|Future Harvest Nutradip Nutrient Meter EC Dual Power AC DC|Nutradip Nutrient MeterNutradip Nutrient Meters are the reliable way to measure the strengthof your gardens nutrient supply. It is a continuous monitoring meterwith automatic temperature compensation and dc power built in forportability. Lightweight, portable and splash resistant. Wall mount or hand held -AC andamp; DC powered. Easy to read plant friendly display. Temperature compensated Food Grade Probe.|http://www.horticulturesource.com/fhd-future-harvest-development-future-harvest-nutradip-nutrient-meter-ec-dual-power-ac-dc-p11168/|http://www.horticulturesource.com/images/716350.png|82.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5521G|11463|Hanna ph Gro'Chek Stick Tester HI 981408|HI 981408 pH Gro'ChekStick Tester is anideal tester for usein nutrient mixingtanks. This tester willrun for 2000 hourscontinuously on AAbatteries.|http://www.horticulturesource.com/hanna-instruments-hanna-ph-gro-chek-stick-tester-hi-981408-p11463/|http://www.horticulturesource.com/images/eco-5521G.JPG|75.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5521E|11464|Hanna Gro'Chek pH Monitor HI 981401N|HI 981401N Gro'Chek PhMonitor gel-filledpH electrode has beenspecially designed toaddress the needs ofgrowers. Measurementsare highly accurate andcan be verified with twopoint calibration|http://www.horticulturesource.com/hanna-instruments-hanna-gro-chek-ph-monitor-hi-981401n-p11464/|http://www.horticulturesource.com/images/eco-5521E.JPG|96.9800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5521H|11465|Hanna TDS Gro'Chek Stick Tester HI 981409|HI 981409 TDS Gro'ChekStick Tester is aTDS tester ideal formixing fertilizer. Thistester will run for 2000hours continuously onAA batteries.|http://www.horticulturesource.com/hanna-instruments-hanna-tds-gro-chek-stick-tester-hi-981409-p11465/|http://www.horticulturesource.com/images/eco-5521H.JPG|115.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5521F|11466|Hanna Gro'Chek TDS Monitor HI 983301N|HI 983301N Gro'Chek TDSMonitor displaysinstantaneousreadings of both EC/TDS/Temperature.Calibration andtemperaturecompensation areautomatic.|http://www.horticulturesource.com/hanna-instruments-hanna-gro-chek-tds-monitor-hi-983301n-p11466/|http://www.horticulturesource.com/images/eco-5521F.JPG|85.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731450|11742|AQUA TEST PHD PH TEST KIT 12/CS|Elos pH Fresh Water - Test KitThe activity of the bio-filter in the aquarium system can be divided in mineralization and nitrification. The product of the mineralization process are ammonia and organic acids. The next step of decomposition is the oxidation (nitrification) of ammonia and ammonium to Nitrite (NO2). Nitrite has a toxic effect on fish because it oxidizes hemoglobin to methemoglobin. While hemoglobin is responsible for the transport of oxygen, methemoglobin lacks this ability!Nitrite concentrations higher than 0,05mg/L (ppm) of NO2 are not acceptable keepingaquarium fishes.For these reasons, the periodical analytical valuation of nitrite in the aquarium water should be considered, specially during the aquarium set-up and, periodically, to avoid the activity loss of the bio-filter system.|http://www.horticulturesource.com/elos-aqua-test-phd-ph-test-kit-12-cs-p11742/|http://www.horticulturesource.com/images/731450.png|15.2900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731443|11743|AQUA TEST CA- CALCIUM TEST KIT 12/CS|Elos Ca - Test KitCalcium is the primary building block of corals, clams, calcareous algae and many other organism that we grow in our aquarium. Without adequate supplies of calcium these organism will not flourish and will eventually waste away and die.The ideal value of Calcium in the aquarium is: For the marine aquarium 450 mg/L. For the planted freshwater aquarium 100 mg/L.Because of the importance of calcium, it is necessary to keep inside our marine aquariums, the proper calcium level, testing it with an accurate test kit.HIGHLIGHTS: Standard sensibility: 25 ppm of Calcium ions. High number of test per kit: up to 40-50 test depending on Ca level.|http://www.horticulturesource.com/elos-aqua-test-ca-calcium-test-kit-12-cs-p11743/|http://www.horticulturesource.com/images/731443.png|25.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731444|11744|AQUA TEST MG-MAGNESIUM TEST KIT 12/CS|Elos Mg - Test KitMagnesium (Mg) is present in a high quantity (1.300/1.350 ppm) in natural seawater. Contrary to its (not only quantitative) significance, this element was ignored as an important parameter of the marine aquarium for a long time.In contrast of what we know today, Magnesium creates a remarkable improvement in the growth of calcareous algae and also has a positive influence on the growth of invertebrates and macro algae.The ideal value of Magnesium in the aquarium is: For the seawater aquarium 1100-1300 mg/L.Because of the importance of Magnesium, it is necessary to keep inside our marine aquariums, the proper calcium level, testing it with an accurate test kit.HIGHLIGHTS: Standard sensibility: 100 ppm of Magnesium ions. High number of test per kit: up to 40 test (with a standard Mg level of 1100 ppm)|http://www.horticulturesource.com/elos-aqua-test-mg-magnesium-test-kit-12-cs-p11744/|http://www.horticulturesource.com/images/731444.png|23.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731445|11745|AQUA TEST KH ALKALINITY TEST KIT 12/CS|Elos KH - Test KitThe alkalinity of a solution refers to its capacity to buffer against drops on pH. It is a measure of the concentration of various negatively charges ionic compounds (anions) such as carbonates, bicarbonates, borates and hydroxides in the aquarium water. The concentrations of these ions determines the buffering capacity of the water to maintain properpH.If the percentage of the hydrogen carbonate and carbonate ions is too low, the pH value of the water may drop severely (acidity drop) causing a life threatening condition for many plants, invertebrates and fish.The ideal value of KH in aquarium is: For seawater aquarium 7 dKH degrees to 10 dKH degrees . Planted freshwater aquarium 3 dKH degrees to 7 dKH degrees .Because of the importance of KH, it is necessary to keep inside our aquariums, the proper KH Level, testing it with an accurate test kit.|http://www.horticulturesource.com/elos-aqua-test-kh-alkalinity-test-kit-12-cs-p11745/|http://www.horticulturesource.com/images/731445.png|15.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731446|11746|AQUA TEST NO2 NITRITE TEST KIT 12/CS|Elos No2 - Test KitThe activity of the bio-filter in the aquarium system can be divided in mineralization and nitrification.andnbsp; The products of the mineralization process are ammonia and organic acids.andnbsp; The next step of decomposition is the oxidation (nitrification) of ammonia and ammonium to Nitrate (NO2).andnbsp; Nitrate has a toxic effect on fish because it oxidizes hemoglobin to methemoglobin.andnbsp; While hemoglobin is responsible for the transport of oxygen, methemoglobin lacks this ability!Nitrate concentrations higher than 0.05mg/L (ppm) of NO2 are not acceptable for keeping aquarium fishes.For these reasons, the periodical analytical valuation of nitrate in the aquarium water should be considered, especially during the aquarium set-up and periodically, to avoid the activity loss of the bio-filter system.|http://www.horticulturesource.com/elos-aqua-test-no2-nitrite-test-kit-12-cs-p11746/|http://www.horticulturesource.com/images/731446.png|21.2400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731447|11747|AQUA TEST NO3 NITRATE TEST KIT 12/CS|Elos No3 - Test KitThe biological filtration is a method that uses naturally occurring nitrifying bacteria to detoxify nitrogenous wastes. One type of bacteria (Nitrosomonas spp.) converts ammonia to nitrite while another naturally occurring bacteria (Nitrobacter spp.) converts the nitrite into a far less harmful form of nitrogen waste: nitrate.Nitrate is the final stage of the nitrification process. Many invertebrates, unlike fish, are not tolerable to high nitrate concentrations. As a result, it is extremely important to make sure that nitrate levels do not reach high levels.In freshwater aquaria the optimal level of Nitrate should be below 20 mg/L. Values of over 75 mg/L should be avoided at all costs.In reef marine aquarium their level should not exceed 20 mg/L. A level of 10 mg/L is the maximum for reef aquariums.For these reasons, the periodical analytical valuation of nitrate in the aquarium water should be considered, specially during the aquarium set-up and, periodically, to avoid a too high level inside the water of our aquaria. Our kit allows the determination of the Nitrate level within a range of 5 - 75 mg/L.|http://www.horticulturesource.com/elos-aqua-test-no3-nitrate-test-kit-12-cs-p11747/|http://www.horticulturesource.com/images/731447.png|23.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731448|11748|AQUA TEST PHM PH TEST KIT MARINE 12/CS|Elos pH Marine - Test KitThe pH value or acid value indicates how acidic or alkaline water is. It is a measure of the concentration of the acidic or alkaline components in a hydrous solution. The salt water aquarium pH-value is considered between 8.1 and 8.4 pH which is the value found in natural seawater.Many organisms will react with high sensitivity to very small variations of the pH-value. An overly drop or rise should be avoided absolutely. Most of the organisms reacts sensitively (or die) on a pH-level, which is constantly far awayfrom the requested value as well as on gravid modifications.Therefore, a regular check on the pH-level is necessary to note and to avoid any negative development.|http://www.horticulturesource.com/elos-aqua-test-phm-ph-test-kit-marine-12-cs-p11748/|http://www.horticulturesource.com/images/731448.png|15.2900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731449|11749|AQUA TEST PO4 PHOSPATE TEST KIT 12/CS|Elos PO4 - Test KitPhosphate (PO4) build up in the tank appears to be a fairly common problem in freshwater and saltwater aquariums. They are present in most tap water supplies, they are also introduced to aquarium water through fish waste,uneaten fish food, and decaying plant and invertebrate material.Hobbyist end up with rising levels of PO4, leading to the appearance of algae that start to cover the tank panes, the driftwoods, the substrate and just about anything else in the tank.The maximum value of PO4 in aquarium is: For seawater aquarium 0,01 mg/L. For fresh water aquarium is 0,5 mg/L. In deeply planted aquarium the maximum level can achieve up to 1 mg/L.The periodical analytical valuation of phosphate in the aquarium water should be considered by the serious aquarium enthusiast.|http://www.horticulturesource.com/elos-aqua-test-po4-phospate-test-kit-12-cs-p11749/|http://www.horticulturesource.com/images/731449.png|23.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|ELOS|731452|11750|AQUA TEST NH4 AMMONIA TEST KIT 12/CS|Elos NH4 - Test KitAmmonia is the most lethal form of inorganic nitrogen produced in aquarium water. The major source of ammonia in a well run aquarium, is from solid waste of fish and invertebrates, uneaten food, decaiyng leaves of plants. Nature comes to our rescue as there are specialized bacteria (Nitrosomonas species) that "eat" ammonia, and strip away the hydrogen atoms. By the way, this bacterial population may be affected by many negative biochemical events. In an established aquarium ammonia should be zero, for these reason, the periodical analytical valuation of ammonia in the aquarium water should be considered by the serious aquarium enthusiast.|http://www.horticulturesource.com/elos-aqua-test-nh4-ammonia-test-kit-12-cs-p11750/|http://www.horticulturesource.com/images/731452.png|25.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716920|11751|Hanna Checker Phosphate HC Low Range|Hanna Checker - PhosphateEasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracy and#8232;Large, easy to read digitsand#8232; Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture, natural, waste, drinking waters and agricultureOrthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.The HANNA HI 713 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 CheckerHC is accurate and affordable.The HI 713 CheckerHC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and +/-0.04 ppm (mg/L) +/-4% of reading accuracy. The HI 713 CheckerHC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.The HI 713 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphate-hc-low-range-p11751/|http://www.horticulturesource.com/images/716920.png|48.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716925|11752|Hanna Checker Phosphate LR Reagents (25pcs)|FOR Hanna Checker - PhosphateEasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracy and#8232;Large, easy to read digitsand#8232; Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture, natural, waste, drinking waters and agricultureOrthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.The HANNA HI 713 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 CheckerHC is accurate and affordable.The HI 713 CheckerHC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and +/-0.04 ppm (mg/L) +/-4% of reading accuracy. The HI 713 CheckerHC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.The HI 713 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphate-lr-reagents-25pcs--p11752/|http://www.horticulturesource.com/images/716920.png|66.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716930|11753|Hanna Checker Phosphate LR Reagents (100pcs)|FOR Hanna Checker - PhosphateEasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracy and#8232;Large, easy to read digitsand#8232; Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture, natural, waste, drinking waters and agricultureOrthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.The HANNA HI 713 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 CheckerHC is accurate and affordable.The HI 713 CheckerHC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and +/-0.04 ppm (mg/L) +/-4% of reading accuracy. The HI 713 CheckerHC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.The HI 713 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphate-lr-reagents-100pcs--p11753/|http://www.horticulturesource.com/images/716920.png|32.6700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716935|11754|Hanna Checker Phosphate LR Reagents (300pcs)|FOR Hanna Checker - PhosphateEasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracy and#8232;Large, easy to read digitsand#8232; Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture, natural, waste, drinking waters and agricultureOrthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.The HANNA HI 713 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 CheckerHC is accurate and affordable.The HI 713 CheckerHC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and +/-0.04 ppm (mg/L) +/-4% of reading accuracy. The HI 713 CheckerHC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.The HI 713 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphate-lr-reagents-300pcs--p11754/|http://www.horticulturesource.com/images/716920.png|65.3100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716940|11755|Hanna Checker Phosphorous HC Ultra Low Range|Hanna Checker - Phosphorus ULREasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracyand#8232; Large, easy to read digits and#8232;Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture (marine applications)Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.The HANNA HI 736 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. The HANNA HI?736 is both accurate and affordable.The HI 736 CheckerHC portable handheld colorimeter features a resolution of 1 ppb and +/-5 ppb +/-5% of reading accuracy and uses an adaptation of Standard Method Ascorbic Acid.The HI 736 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphorous-hc-ultra-low-range-p11755/|http://www.horticulturesource.com/images/716940.png|48.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716945|11756|Hanna Checker Phosphorous ULR Reagents (25/CS)|FOR Hanna Checker - Phosphorus ULREasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracyand#8232; Large, easy to read digits and#8232;Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture (marine applications)Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.The HANNA HI 736 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. The HANNA HI?736 is both accurate and affordable.The HI 736 CheckerHC portable handheld colorimeter features a resolution of 1 ppb and +/-5 ppb +/-5% of reading accuracy and uses an adaptation of Standard Method Ascorbic Acid.The HI 736 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-phosphorous-ulr-reagents-25-cs--p11756/|http://www.horticulturesource.com/images/716940.png|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716975|11757|Hanna Checker Cuvet Cleaning Soultion|FOR Hanna Checker - Phosphorus ULREasier to use and more accurate than chemical test kits Ascorbic acid method +/-0.04 ppm +/-4% of reading accuracyand#8232; Large, easy to read digits and#8232;Auto shut off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA batteryIdeal for: Aquaculture (marine applications)Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.The HANNA HI 736 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. The HANNA HI?736 is both accurate and affordable.The HI 736 CheckerHC portable handheld colorimeter features a resolution of 1 ppb and +/-5 ppb +/-5% of reading accuracy and uses an adaptation of Standard Method Ascorbic Acid.The HI 736 CheckerHC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the CheckerHC, press the button and read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-cuvet-cleaning-soultion-p11757/|http://www.horticulturesource.com/images/716940.png|21.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716980|11758|Hanna Checker Marine Calcium HC|Hanna Checker - CalciumCalcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter,depending on its source and treatment. Calcium is necessary in plant and animal nutrition since it is an essential constituent of bones, shells and plant structures. Calcium in water as carbonate is one of the primary components of water hardness which can cause pipe or tube scaling.The HI 758 Calcium CheckerHC is extremely simple to use. First, zero the instrument by adding Reagent A and deionized water into the vial. Insert into the HI 758 and press the button. Next, remove the vial and add 0.1ml of sample and add Reagent B; shake to dissolve. Reinsert into the CheckerHC and press the button to read the calcium concentration in ppm on the display.Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket!Easier to use and more accurate than chemical test kits! Large, easy to read digits. Auto shut off. Operated by a single AAA battery Use for quick and accurate on the spot analysis. Single button operation: zero and measure.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-marine-calcium-hc-p11758/|http://www.horticulturesource.com/images/716980.png|47.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716985|11759|Hanna Checker Marine Calcium Reagents (25pcs)|FOR Hanna Checker - CalciumCalcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter,depending on its source and treatment. Calcium is necessary in plant and animal nutrition since it is an essential constituent of bones, shells and plant structures. Calcium in water as carbonate is one of the primary components of water hardness which can cause pipe or tube scaling.The HI 758 Calcium CheckerHC is extremely simple to use. First, zero the instrument by adding Reagent A and deionized water into the vial. Insert into the HI 758 and press the button. Next, remove the vial and add 0.1ml of sample and add Reagent B; shake to dissolve. Reinsert into the CheckerHC and press the button to read the calcium concentration in ppm on the display.Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand or pocket!Easier to use and more accurate than chemical test kits! Large, easy to read digits. Auto shut off. Operated by a single AAA battery Use for quick and accurate on the spot analysis. Single button operation: zero and measure.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-marine-calcium-reagents-25pcs--p11759/|http://www.horticulturesource.com/images/716980.png|17.4600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716950|11760|Hanna Checker Marine Alkalinity HC|Hanna Checker - Alkalinity Easier to use and more accurate than chemical test kits Colorimetric method Accuracy +/-5 ppm +/-5% of reading 1 ppm (mg/L) resolution Large, easy to read digits Auto shut off Dedicated to a single parameter Designed to work with HANNA's liquid reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand orpocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA battery Ideal for Saltwater Aquariumsandnbsp;The HANNA HI 755 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 CheckerHC is accurate and affordable.The CheckerHC features an accuracy of +/-5 ppm (mg/L) +/-5% of reading and uses the colorimetric method.The contoured style of this CheckerHC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.Theandnbsp; HI 755 CheckerHC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 CheckerHC and press the button to read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-marine-alkalinity-hc-p11760/|http://www.horticulturesource.com/images/716950.png|48.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716955|11761|Hanna Checker Alkalinity Reagents (25pcs)|FOR Hanna Checker - Alkalinity Easier to use and more accurate than chemical test kits Colorimetric method Accuracy +/-5 ppm +/-5% of reading 1 ppm (mg/L) resolution Large, easy to read digits Auto shut off Dedicated to a single parameter Designed to work with HANNA's liquid reagents Uses 10 mL glass cuvettes Small size, big convenience Weighing a mere 64 g (2.25 oz.), the CheckerHC easily fits into the palm of your hand orpocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA battery Ideal for Saltwater Aquariumsandnbsp;The HANNA HI 755 CheckerHC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 CheckerHC is accurate and affordable.The CheckerHC features an accuracy of +/-5 ppm (mg/L) +/-5% of reading and uses the colorimetric method.The contoured style of this CheckerHC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.Theandnbsp; HI 755 CheckerHC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 CheckerHC and press the button to read the results. It's that easy.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-alkalinity-reagents-25pcs--p11761/|http://www.horticulturesource.com/images/716950.png|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716965|11762|Hanna Checker Glass Cuvet for Checker Series (4pcs)|Hanna Checker AccessoriesGlass Cuvette (4 pcs)The glass cuvette is the most sensitive part for taking accurate measurements with photometers. It is important that the cuvette is always clean and without scratches. These cuvettes were engineered to fit the HANNA Checker HC line.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-glass-cuvet-for-checker-series-4pcs--p11762/|http://www.horticulturesource.com/images/716965.png|18.7900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716970|11763|Hanna Checker Cuvet Caps for Checker Series (4pcs)|Hanna Checker AccessoriesCuvette Caps (4 pcs)These caps were made to fit the cuvette.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-cuvet-caps-for-checker-series-4pcs--p11763/|http://www.horticulturesource.com/images/716965.png|8.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716975|11764|Hanna Checker Cuvet Cleaning Soultion|Hanna Checker AccessoriesCuvette Cleaning Solution, 230 mlThis solution is used to clean dirty cuvettes. Cleaning your cuvette is important because if the cuvette is dirty, less light will reach the sample and it can make your reading off.|http://www.horticulturesource.com/hanna-instruments-hanna-checker-cuvet-cleaning-soultion-p11764/|http://www.horticulturesource.com/images/716965.png|21.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716672|12461|Milwaukee pH Meter BEM101|Milwaukee Instruments pH Meter - BEM101Standard pH mini-bench meter for quick and reliable measurements. Double junction electrode with 1 meter cable Manual calibration 2 points Faster Processor with The New Chipset and Motherboard 100% Larger andamp; Easier To Read LED Display Smaller, Ergonomic andamp; Lighter Case DesignIncludes: 9vDC power supply, mounting Kit, SE220 pH probe, probe holder, and 20ml pH 7.01 andamp; 4.01 calibration solution|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-meter-bem101-p12461/|http://www.horticulturesource.com/images/716672.png|90.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716674|12462|Milwaukee TDS / PPM Meter BEM401|Milwaukee Instruments TDS/PPM Meter - BEM401Standard TDS - PPM mini-bench meter for quick and reliable measurements. Manual calibration 1 points Faster Processor with The New Chipset and Motherboard 100% Larger andamp; Easier To Read LED Display Smaller, Ergonomic andamp; Lighter Case DesignIncludes: 9vDC power supply, mounting Kit, MA811D/1 TDS probe, probe holder, and 20ml 1382ppm calibration solution|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-tds-ppm-meter-bem401-p12462/|http://www.horticulturesource.com/images/716674.png|88.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716676|12463|Milwaukee ORP Meter BEM500|Milwaukee Instruments ORP Meter - BEM500Standard ORP mini-bench meter for quick and reliable measurements. Factory calibrated Faster Processor with The New Chipset and Motherboard 100% Larger andamp; Easier To Read LED Display Smaller, Ergonomic andamp; Lighter Case DesignIncludes: 9vDC power supply, mounting Kit, SE300 Platinum probe, and probe holder|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-orp-meter-bem500-p12463/|http://www.horticulturesource.com/images/716676.png|130.4100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716678|12464|Milwaukee pH / EC / TDS Combo Meter BEM802|Milwaukee Instruments pH/EC/TDS Combo Meter - BEM802Standard pH/EC/TDS combo mini-bench meter for quick and reliable measurements. Faster Processor with The New Chipset and Motherboard 100% Larger andamp; Easier To Read LED Display Smaller, Ergonomic andamp; Lighter Case DesignIncludes: 9vDC power supply, mounting Kit, SE600 Combo probe, probe holder, and a 20ml sachet of calibration solution of pH 7.01, 1500ppm, and 1413ÁS/cm|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-ec-tds-combo-meter-bem802-p12464/|http://www.horticulturesource.com/images/716678.png|183.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716688|12465|Milwaukee TDS / PPM Monitor MC410|Milwaukee Instruments TDS/PPM Monitor -MC410 TDS - PPM Monitor User selectable Hi/Low Set Point Manual 1 point calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml 1382ppm calibration solution MA81/2 PPM Probe with 2m cable (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-tds-ppm-monitor-mc410-p12465/|http://www.horticulturesource.com/images/716688.png|92.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716692|12466|Milwaukee pH / ORP Controller MC125|Milwaukee Instruments pH/ORP Controller - MC125 Smart Professional pH/ORP controller. User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter and mounting kit 1 power plug for CO2 dosing and 1 power plug for O3 dosing Double junction pH electrode and platinum ORP electrode (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-orp-controller-mc125-p12466/|http://www.horticulturesource.com/images/716692.png|236.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716694|12467|Milwaukee ORP Controller MC510|Milwaukee Instruments ORP Controller - MC510 Smart Professional ORP controller. User selectable Hi/Low Set Point Visual LED alarm Supplied with 12 VDC adapter 1 power plug for O3 dosing Platinum ORP electrode (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-orp-controller-mc510-p12467/|http://www.horticulturesource.com/images/716694.png|146.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716686|12482|Milwaukee EC / Conductivity Monitor / Range MC310|Milwaukee Instruments EC/Conductivity Monitor - MC310 Professional EC - Conductivity Monitor User selectable Hi/Low Set Point Manual 1 point calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml 1413 ÁS/cm calibration solution MA811/2 EC Conductivity Probe with 2m cable (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ec-conductivity-monitor-range-mc310-p12482/|http://www.horticulturesource.com/images/716686.png|28.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716682|12483|Milwaukee pH Monitor MC110|Milwaukee Instruments pH Monitor - MC110 Professional pH monitor User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution Double junction pH electrode with 2m cable (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-monitor-mc110-p12483/|http://www.horticulturesource.com/images/716682.png|98.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716684|12484|Milwaukee pH Monitor MC120|Milwaukee Instruments pH Monitor - MC120 Professional pH monitor User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution Double junction pH electrode with 2m cable (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-monitor-mc120-p12484/|http://www.horticulturesource.com/images/716684.png|98.6200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716690|12485|Milwaukee pH Controller MC122|Milwaukee Instruments pH Controller - MC122 Professional pH controller User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter and mounting kit Power plug for CO2 dosing Double junction pH electrode with 2m cable (BNC connector)|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-ph-controller-mc122-p12485/|http://www.horticulturesource.com/images/716690.png|137.4500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Sun System / Sunlight Supply|716579|12511|24-7 PPM Replacement Probe|24-7 Nutrient Monitor24-7 PPM Replacement Probe (716579)A great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature. Its large illuminated green LCD display allows easy reading from a distance. Both pH and PPM are temperature compensated for accurate readings. The electrodes are replaceable at a relatively low price. Calibration screws are conveniently located on the front for easy access. The chip is programmed to use the international water standard 500 PPM = 1 EC TDS measurement. It uses a standard 120 volt AC current to low voltage DC power supply. The 24-7 Nutrient Monitor comes with 4oz bottles of 1382 PPM, pH 4.0, and pH 7.0 calibration solutions. This meter and PPM electrode has a one year warranty and six month warranty on the pH electrode. Manufacturer's Product Information MSRP $52.95|http://www.horticulturesource.com/sun-system-sunlight-supply-24-7-ppm-replacement-probe-p12511/|http://www.horticulturesource.com/images/11760.png|41.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716814|12513|Hanna Waterproof pH/EC/TDS Meter (HI 9813-6N)|Hanna Waterproof pH/EC/TDS MeterHanna Waterproof pH/EC/TDS Meter (HI 9813-6N) (716814)andnbsp; HI 9813-6N is a versatile, water resistant multiparameter portable meter specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features an extra large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. HI 9813-6N is designed for simplicity of use in taking pH, mS/cm, ppm and temperature in the degrees C scale measurements. HI 9813-6 includes all the features of the HI 9813-5 while incorporating our exclusive CAL CHECK feature. CAL CHECK allows the user to easily check the probe calibration status at any time. Comes with the HI 1285 series pH/EC/TDS/temperature probe. This probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. andnbsp; Manufacturer's Product Information MSRP $261.95|http://www.horticulturesource.com/hanna-instruments-hanna-waterproof-ph-ec-tds-meter-hi-9813-6n--p12513/|http://www.horticulturesource.com/images/11742.png|150.6500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716436|12620|Hanna Checker Replacement Electrode (HI 1270)|Hanna Checker pH Tester (HI 98103)Hanna Checker Replacement Electrode (HI 1270) (716436)At the cost of just a few rolls of litmus paper, you can have the industry's best pocket-size pH tester. The Checker supplies you with fast and accurate readings from 0.00 to 14.00 pH with a resolution of 0.01 pH. This compact tester features a large easy-to-read LCD and a simple to perform 2-point calibration. The pH electrode of the Checker can be replaced; simply unscrew the electrode from the meter body and screw on a new one. The Checker is fast, accurate, lightweight and with 3000 hours of battery life, you don't have to worry about frequent battery replacement. Testing pH has never been easier! Manufacturer's Product Information MSRP $28.95|http://www.horticulturesource.com/hanna-instruments-hanna-checker-replacement-electrode-hi-1270--p12620/|http://www.horticulturesource.com/images/716436-n.jpg|18.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716435|12621|Hanna Checker pH Tester (HI 98103)|Hanna Checker pH Tester (HI 98103)Hanna Checker pH Tester (HI 98103) (716435)At the cost of just a few rolls of litmus paper, you can have the industry's best pocket-size pH tester. The Checker supplies you with fast and accurate readings from 0.00 to 14.00 pH with a resolution of 0.01 pH. This compact tester features a large easy-to-read LCD and a simple to perform 2-point calibration. The pH electrode of the Checker can be replaced; simply unscrew the electrode from the meter body and screw on a new one. The Checker is fast, accurate, lightweight and with 3000 hours of battery life, you don't have to worry about frequent battery replacement. Testing pH has never been easier! Manufacturer's Product Information MSRP $44.49|http://www.horticulturesource.com/hanna-instruments-hanna-checker-ph-tester-hi-98103--p12621/|http://www.horticulturesource.com/images/716435-n.jpg|25.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||721870|12646|Grow More pH Down 30% Quart (12/Cs)|Grow More pH Down 30%Grow More pH Down 30% Quart (12/Cs) (721870)Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. Use pH Down to lower pH of nutrient solution with phosphoric acid. Not registered in the state of OR at this time. Manufacturer's Product Information MSRP $8.34 UPC080986080326 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/grow-more-ph-down-30-quart-12-cs--p12646/|http://www.horticulturesource.com/images/14129.png|5.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||721875|12647|Grow More pH Down 30% Gallon (4/Cs)|Grow More pH Down 30%Grow More pH Down 30% Gallon (4/Cs) (721875)Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. Use pH Down to lower pH of nutrient solution with phosphoric acid. Not registered in the state of OR at this time. Manufacturer's Product Information MSRP $22.24 UPC080986080333 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/grow-more-ph-down-30-gallon-4-cs--p12647/|http://www.horticulturesource.com/images/14129.png|14.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||721865|12648|Grow More pH Up 30% Gallon (4/Cs)|Grow More pH Up 30%Grow More pH Up 30% Gallon (4/Cs) (721865)Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. Use pH Up to raise pH of nutrient solution with potassium hydroxide. Not registered in Washington or Oregon at this time. Manufacturer's Product Information MSRP $22.24 UPC080986080388 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/grow-more-ph-up-30-gallon-4-cs--p12648/|http://www.horticulturesource.com/images/14130.png|14.8000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||721860|12649|Grow More pH Up 30% Quart (12/Cs)|Grow More pH Up 30%Grow More pH Up 30% Quart (12/Cs) (721860)Convenient ready to use liquids, concentrated, fast acting, high purity food grade ingredients. Use pH Up to raise pH of nutrient solution with potassium hydroxide. Not registered in the state of OR at this time. Manufacturer's Product Information MSRP $8.34 UPC080986080302 NOTE: CANNOT SHIP VIA UPS.|http://www.horticulturesource.com/grow-more-ph-up-30-quart-12-cs--p12649/|http://www.horticulturesource.com/images/14130.png|5.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|716365|12679|Future Harvest Nutradip pH Replacement Probe|Nutradip pH Replacement ProbeFuture Harvest Nutradip pH Replacement Probe (716365)Nutradip pH Probes are the reliable way to measure acidity in your nutrient solution. The pH Probe is a continuous monitoring pH meter with automatic temperature compensation, and dc power built in for portability. Nutradip Probes are engineered for accuracy and durability, helping growers measure and monitor their success for over 15 years. Manufacturer's Product Information MSRP $64.95|http://www.horticulturesource.com/fhd-future-harvest-development-future-harvest-nutradip-ph-replacement-probe-p12679/|http://www.horticulturesource.com/images/14425.png|37.4300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Milwaukee Instruments|716617|12711|Milwaukee SE600 Replacement Probe for MW802|Smart pH/EC/TDS Combo. Meter Model MW802Milwaukee SE600 Replacement Probe for MW802 (716617)The MW802 is a compact portable meter with faster micro processor. This meter allows you to measure pH, EC and TDS with just one instrument and one single probe! This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. Also has 100% larger and easier to read LED Display and long battery life. It calibrates manually in pH, Conductivity and TDS. Range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of +/-0.20 pH and +/-2% full scale for EC and TDS. Supplied with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 !S/cm. Manufacturer's Product Information MSRP $98.95|http://www.horticulturesource.com/milwaukee-instruments-milwaukee-se600-replacement-probe-for-mw802-p12711/|http://www.horticulturesource.com/images/13868.png|74.6400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716440|12745|Bluelab Carry Case|Bluelab Carry CaseThe Bluelab Carry Case provides a custom fit so you can use and read your Bluelab Meter right from the carry case.A firm outer casing offers impact reduction for your Meter. There aretwo pockets in the top of the case especially made for meter probes. Theinternal strap is a tidy way to tuck away the probe cables.Removable and adjustable straps provide even more comfort andconvenience. The strap can be hung on the wall or used over yourshoulder, keeping the Meter safe and dry in the carry case so only theprobes go into the nutrient container. In-between use, we recommendplacing dry probes into the pockets. Simply zip the Carry Case to closeit, then tuck away safely for storage or transport.The Bluelab Carry Case is ideal for use with the following Bluelab Meters: Bluelab Combo Meter Bluelab pH Meter Bluelab Soil pH Meter Bluelab pH and ppm PensMain Features: Firm outer casing offers impact reduction for Meter Two custom pockets to insert Bluelab Probesandnbsp; Internal strap to tuck probe cables away tidily Net pocket for Meter to sit in andamp; shoulder strap to hold in placeandnbsp; Strong nylon strap - length can be easily adjustedandnbsp; 3x 'D' hooks at top of outer case for hangingandnbsp; 2x zips to close case*Note: The Bluelab Carry Case does not come with a Meter.|http://www.horticulturesource.com/bluelab-bluelab-carry-case-p12745/|http://www.horticulturesource.com/images/716440.png|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|716917|12862|Rapitest Soil Tester (12/Cs)|Rapitest Soil TesterIt's vital to know the existing pH, Nitrogen, Phosphorus and Potash levels in garden soil. The soil's pH controls the availability of these three nutrients essential to plant health. Test results allow the gardener to amend and fertilize appropriately, ensuring the best possible growing results.4 color-coded tests:1 each for pH, nitrogen, phosphorous and potash.|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-soil-tester-12-cs--p12862/|http://www.horticulturesource.com/images/716917.png|4.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716438|12882|Bluelab Soil pH Pen|Bluelab Soil pH PenThis clever soil pH pen will help you manage the success of soil grown crops. The soil pH pen provides a pH and temperature reading of soils and media, so you know that the right nutrients will be made available to your plants. It will also measure solutions tooů|http://www.horticulturesource.com/bluelab-bluelab-soil-ph-pen-p12882/|http://www.horticulturesource.com/images/716438.png|122.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5528D|13285|Replacement probe for CalCheck Meter (HI1285-6)|Replacement probe for CalCheck Meter (HI1285-6)Preamplified pH and EC Probe with CAL CHECK for use with HI 9813 Series. Recommended for greenhouses, hydroponics, environmental monitoring, water treatment, boilers and cooling towers.|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-calcheck-meter-hi1285-6--p13285/|http://www.horticulturesource.com/images/eco-5528D.jpg|105.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5524A|13673|Hanna pH Checker Kit - HI 98103H|Includes: HI 98103 pH tester, instrument case, calibration tool, and two each of pH 7.01, 4.01 and cleaning solution sachets (20 mL each).|http://www.horticulturesource.com/hanna-instruments-hanna-ph-checker-kit-hi-98103h-p13673/|http://www.horticulturesource.com/images/eco-5524A.jpg|33.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5524B|13674|Hydroponic pH Tester - HI99104H|An economical, professional pH tester for growers. Replaceable probe, easy to use, no calibration tools required!Presented in attractive blister packaging; designed for hanging displays.|http://www.horticulturesource.com/hanna-instruments-hydroponic-ph-tester-hi99104h-p13674/|http://www.horticulturesource.com/images/eco-5524B.jpg|33.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5524C|13675|pH Cleaning and Calibration Solution Kit (HI pHKit)|Attractive, easily shelved packaging, with both written and photographic instructions on solution use. Aggressively priced to encourage customers to purchase more maintenance solutions.Includes five each of pH 7.01, pH 4.01, and cleaning solution (20 mL sachets)|http://www.horticulturesource.com/hanna-instruments-ph-cleaning-calibration-solution-kit-hi-phkit--p13675/|http://www.horticulturesource.com/images/eco-5524C.jpg|16.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|eco-5524D|13676|pH and EC Cleaning and Calibration Kit|Attractive, easily shelved packaging, with both written and photographic instructions on solution use. Aggressively priced to encourage customers to purchase more maintenance solutions.Includes five each of pH 7.01, 1413 uS/cm, and cleaning solution (20 mL sachets)|http://www.horticulturesource.com/hanna-instruments-ph-ec-cleaning-calibration-kit-p13676/|http://www.horticulturesource.com/images/eco-5524D.jpg|15.5600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||dl-970300|14122|Prestige PH Meter|Prestige PH Meter (970300)Waterproof, low power consumption, replaceable electrode, automatic temperature compensation and automatic switch-off feature after 10 minutes of inactivity to save battery power.- Measuring Range: 0.10-14.00pH- Resolution: 0.10pH- Accuracy: 0.10 pH- Operating Temperature: 5-50 C (ATC)- Calibration: 2 points- Power Supply: DC 4 x 1.5V (button battery) Manufacturer's Product Information MSRP $79.95 Dimensions1.5 x 1 x 6.5|http://www.horticulturesource.com/prestige-ph-meter-p14122/|http://www.horticulturesource.com/images/397100_a.jpg|48.3600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||dl-970301|14123|Spare Electrode|Spare Electrode (970301)Spare electrode for Prestige PH Meter (part #397100) Manufacturer's Product Information MSRP $39.95 Dimensions1.5 x 1 x 2|http://www.horticulturesource.com/spare-electrode-p14123/|http://www.horticulturesource.com/images/397109.jpg|23.1400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||dl-970400|14124|Prestige PPM Meter|Prestige PPM Meter (970400)Waterproof, low power consumption and automatic switch-off feature after 10 minutes of inactivity to save battery power.- Measuring Range: 0-1999ppm/1ppm- Accuracy: 2% full scale- Operating Temperature: 5-50 C (ATC)- Power Supply: DC4x1.5V Manufacturer's Product Information MSRP $69.95 Dimensions1.5 x 1 x 6.5|http://www.horticulturesource.com/prestige-ppm-meter-p14124/|http://www.horticulturesource.com/images/397200_a.jpg|38.2200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||dl-970100|14125|Prestige PPM Wand|Prestige PPM Wand (970100)Waterproof, automatic shut-off function, temperature compensated, illuminated display, and switches between CF, EC, and PPM values.- Measuring Ranges: 0-9990 PPM; 0.0-10.0 EC; 0-100 CF- Resolution: 10 PPM; 0.1EC; 1CF- Accuracy: 2% FS- Temperature: 5-45 C (ATC) or 41-113 F- Calibration: one point at 6.7 EC- Power Supply: DC9v battery- Display: LCD with illumination and hold fuction Manufacturer's Product Information MSRP $99.95 Dimensions0.75 x 10 x 0.75|http://www.horticulturesource.com/prestige-ppm-wand-p14125/|http://www.horticulturesource.com/images/397300_a.jpg|50.3400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||dl-970200|14126|Prestige Soil pH and Moisture Meter|Prestige Soil pH and Moisture Meter (970200)Great for quick pH and moisture reference of commercial vineyards, orchards, nursery planters and residential gardens and lawns.- Range: pH = 3-8 pH- Moisture: 1-8- Resolution: 0.2 pH- Accuracy: 0.2 pH- Operating Temperature: 5-50 C or 41-122 F- Calibration: Polish lightly to remove oxidation from meal rings Manufacturer's Product Information MSRP $82.95 Dimensions3 x 6.5 x 0.5|http://www.horticulturesource.com/prestige-soil-ph-moisture-meter-p14126/|http://www.horticulturesource.com/images/397400_b.jpg|43.7600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|716809|16089|Hanna Hydroponics pH Tester (HI99104)|HI 99104 is an ideal pocket tester designed with a 0.01 pH resolutionand two point manual calibration through easy to reach trimmers, itimmediately displays pH variations to reflect the smallest change in thesample. Unlike conventional testers, HI 99104 has a long and slim stem, ideal for measurements in small samples or test tubes. HI 99104 is supplied with a rugged, plastic body electrode with ascrew connector that allows for quick and easy electrode replacement. Additionally, it's low power demand allows for 1000 hours of battery life with common 1.5V batteries.Features:Accurate and economical measurements. Simple calibration. Long batterylife. Small diameter probe fits easily into a test tube. Replaceableelectrode.|http://www.horticulturesource.com/hanna-instruments-hanna-hydroponics-ph-tester-hi99104--p16089/|http://www.horticulturesource.com/images/716809.png|26.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||CW507|16189|24-7 Nutrient Monitor Power Adapter|This item is the replacement power adapter for the 24-7 Nutrient Monitor.The 24-7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for easy access. Control Wizard has priced the new 24-7 Nutrient Meter to have the lowest MSRP of any constant read meter currently on the market. This low price will allow more first time growers to afford the quality and no hassle features of a constant read meter.|http://www.horticulturesource.com/24-7-nutrient-monitor-power-adapter-p16189/|http://www.horticulturesource.com/images/CW507.jpg|17.3500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||CW495|16190|Accurate pH 4|This meter utilizes the same body and electronics as the CWP Instruments Accurate pH 3 but has the added advantage of a larger corded electrode. The larger electrode enhances the meters electronic circuitry making it not only very accurate but also it has very stable readings.The 30 inches long corded electrode allows the user to test a large body of solution without the chance of dropping the meter's body into the solution being tested.The electrode is replaceable and the meter has a 2 point calibration system for superior accuracy. Both calibration screws are located inside the battery compartment. The meter has low power consumption circuitry with an auto OFF feature. It uses four 1.5 volt button type batteries.|http://www.horticulturesource.com/accurate-ph-4-p16190/|http://www.horticulturesource.com/images/CW495.jpg|69.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||CW496|16191|Accurate pH 4 Probe|This is the replaceable probe for the Accurate pH 4.The cord is 30 inches long.|http://www.horticulturesource.com/accurate-ph-4-probe-p16191/|http://www.horticulturesource.com/images/CW496.jpg|31.5100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil||MI214|16333|Rapitest Electric Soil Tester|Determines soil pH and fertility in one unit. Includes instructions.|http://www.horticulturesource.com/rapitest-electric-soil-tester-p16333/|http://www.horticulturesource.com/images/MI214.jpg|25.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|716194|16354|Bluelab Growers Toolbox|Bluelab Grower's Toolbox - Limited EditionThe Bluelab Grower's Toolbox combines the essential tools you need to easily manage your crop by measuring the pH, conductivity (ppm) and temperature of the nutrient solution. Learn the hydroponics basics with the Grow Book, so you can get goingů And keep growing with the ultimate handy team, the Bluelab pH Pen and Bluelab ppm Pen. These clever little pens make it easy to measure the nutrient uptake (pH), the amount of food available (ppm) and the solution temperature, so you can create the best nutrient environment for your plants' growth. The Bluelab Probe Care Kit makes maintenance easy to maximize the life and accuracy of the pens probes. With these tools and essentials in one value added pack, The Grower's Toolbox is a complete simple crop management system that helps you get it right, from the start.CONTENTS: Bluelab pH Pen (AAA battery included) Bluelab ppm Pen (AAA battery included) Bluelab Grow Book Bluelab Probe Care Kit - pH andamp; Conductivity: - Probe care instructions - 20ml single-use Bluelab Solution Sachets, 2 each of: pH 7.0 andamp; pH 4.0, KCl, 2.77 EC. - 3x plastic cups - Bluelab pH Probe Cleaner - Bluelab Conductivity Probe Cleaner - Bluelab Toothbrush (pH probe cleaning instrument)Bluelab Chamois (conductivity probe cleaning instrument)|http://www.horticulturesource.com/bluelab-bluelab-growers-toolbox-p16354/|http://www.horticulturesource.com/images/716194.png|132.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|hf-APCEPH1SK|16989|pH Controller Sampling Kit|Autopilot pH Controller Sampling Kit (APCEPH1SK)pH sampling assembly, allows for more accurate readings. Sampling kit includes a submersible pump, 3/4" x 5' tubing and molded sensor assembly with mounting bracket.The sampling assembly providesandnbsp;a stable method to mount the pH and temperature sensors. It uses a submersible pump to mix the water and to provide constant water flow across the sensor to accurately measure the water pH levels.Pump 300 LPH (80 GPH) -6 foot lift.andnbsp;andnbsp; Manufacturer's Product Information MSRP each $74.95 UPC638104005906 Dimensions5 x 4 x 8 Case Weight22 Case Quantity8|http://www.horticulturesource.com/hydrofarm-ph-controller-sampling-kit-p16989/|http://www.horticulturesource.com/images/APCEPH1SK.jpg|49.4700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|hf-APCEPH1|16988|Digital pH Controller|Autopilot Digital pH Controller (APCEPH1)The Autopilot pH-1 controller accurately and reliably measures and controls the pH of any water-based solution, including hydroponic nutrient mixtures, and fish aquarium water.After selecting the desired pH setting from 5.0 to 8.0 pH, the pH controller measures the pH value of the solution and automatically adds pH adjustment (either acid or alkaline) to change the liquid's pH to the selected level. The pH controller includes a chemically resistant low voltage dosing pump, and both pH, and temperature sensors. Features include a digital display, adjustable dosing time, adjustable mixing time, adjustable pH dead band, maximum number of dosing cycles, pH high and low limits, and a data logger which shows the minimum and maximum pH recorded. Never before has there been a pH controller with these features for this value. Get automated, get Autopilot!andbull; High precision measurement and controlandbull; Automatically controls pH direction up or downandbull; Simple, user-friendly interfaceandnbsp; Manufacturer's Product Information MSRP each $369.95 UPC638104011266 Dimensions5.5 x 5.9 x 10.6 Case Weight31 Case Quantity8|http://www.horticulturesource.com/hydrofarm-digital-ph-controller-p16988/|http://www.horticulturesource.com/images/APCEPH1_2.jpg|244.1700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2000E|17488|Bluelab Truncheon Meter|Bluelab Bluelab Truncheon Meter (BLU2000E)It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding your plants AND while they are growing.This is easy if you use the Bluelab Truncheon Nutrient Meter! To take a reading of your solution - simply place the probe head into the solution for 1-2 minutes to reach the same temperature of your nutrient. The reading is indicated by the flashing lights. Calibration of the Meter is not required.Meter length: 40.7cm or 16 1/32 in.Featuresandbull; Fully waterproofandbull; Auto on/off functionandbull; Daylight readable blue LED'sandbull; Battery operatedandbull; No buttons, switches or knobsandbull; Provided with EC, CF, ppm 700 and ppm 500 scalesandnbsp; Manufacturer's Product Information MSRP each $140 UPC9421024920135 Dimensions1.5 x 1.5 x 16.4 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-truncheon-meter-p17488/|http://www.horticulturesource.com/images/BLU2000E.jpg|92.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2100E|17489|Commercial Truncheon Meter|Bluelab Commercial Truncheon Meter (BLU2100E)Big jobs require a big Truncheon! With a conductivity range right up to 6.0EC (60CF or 4200ppm), it will never leave you short. The Commercial Truncheon Nutrient Meter has been designed for hydroponic crops that require a higher than normal EC or CF requirement during their growing cycle. It's super tough, fully waterproof, has no on/off buttons to worry about and does not need calibrating. It's great for stirring your nutrient tank too!It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding your plants AND while they are growing. This is easy when you use the Commercial Truncheon! To take a reading of your solution - simply place the probe head into the solution for 1-2 minutes to reach the same temperature of your nutrient. Remove from the solution and place back in to take the reading as indicated by the flashing lights. Rinse the probe after use in fresh water and clean once a month to ensure the Commercial Truncheon Nutrient Meter remains accurate.Main Features andbull; EC (0.4 - 6.0), CF (4 - 60) and ppm scales (TDS and 700 scale) andbull; Fully waterproof andbull; No calibration required andbull; Auto sense on and off andbull; No external switches or adjustable buttons andbull; Battery life minimum 1 year (or shelf life of battery)andnbsp; Manufacturer's Product Information MSRP each $140 UPC9421024920234 Dimensions2.16 x 1.26 x 9.84 Case Quantity1|http://www.horticulturesource.com/bluelab-commercial-truncheon-meter-p17489/|http://www.horticulturesource.com/images/BLU2100E.jpg|92.4000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2210|17490|Bluelab pH Pen|Bluelab Bluelab pH Pen (BLU2210)The ultimate handy solution for measuring pH!Plants get their nutrition from minerals but they can only get all the right minerals they need if certain conditions are right.A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH.The Bluelab pH Pen is the latest innovation for hand held meters. It provides a compact quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Teamed with our Bluelab EC Pen or Bluelab ppm Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.Now, isn't that handy?Featuresandbull; Measures pH and temperature andbull; Selectable units for degrees C and degrees F andbull; Backlit LCD display andbull; Double junction probe (not replaceable) andbull; Successful pH calibration indicator andbull; Hold reading function andbull; Low battery indicator andbull; Fully waterproof andbull; Auto off function andbull; Automatic temperature compensationandnbsp;andnbsp; Manufacturer's Product Information MSRP each $112.5 UPC9421024920487 Dimensions2.28 x 1.18 x 13.19 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-ph-pen-p17490/|http://www.horticulturesource.com/images/BLU2210.jpg|74.2500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2216|17491|Bluelab Soil pH Pen|Bluelab Bluelab Soil pH Pen (BLU2216)A handy solution made easy!The Bluelab Soil pH Pen provides a pH and temperature reading of soils and media, so you know that the right nutrients will be made available to your plants.In soils or growing media, pH strongly influences the availability of the microorganisms to plants in the soil. Now you can closely monitor and adjust the pH levels right from the palm of your hand for optimum plant health and performance.It will also measure solutions too...Now, isn't that handy?Featuresandbull; Direct pH and temperature measurements into soils/media andbull; Backlit LCD display andbull; Hold reading function andbull; Integrated storage cap/dibber andbull; Successful pH calibration indicator andbull; Low battery indicator andbull; Fully waterproof andbull; Auto off function andbull; Selectable units for degrees C and degrees F andbull; Automatic temperature compensationandnbsp; Manufacturer's Product Information MSRP each $185 UPC9421024920227 Dimensions2.16 x 1.26 x 9.84|http://www.horticulturesource.com/bluelab-bluelab-soil-ph-pen-p17491/|http://www.horticulturesource.com/images/BLU2216_2.jpg|122.5400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2221|17492|Bluelab ppm Pen|Bluelab Bluelab ppm Pen (BLU2221)The ultimate handy solution for measuring conductivity!The Bluelab ppm Pen is the latest innovation for hand held conductivity meters. It provides a compact, quick and handy way to manage the success of your crops.The Bluelab ppm Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed.Display options available in anddeg;C, anddeg;F, EC, CF, ppm 500 and ppm 700.Teamed with our Bluelab pH Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.Now, isn't that handy?Featuresandbull; Measures conductivity and temperature andbull; Selectable units for conductivity and temperature andbull; Backlit LCD display andbull; Calibration optional andbull; Successful calibration indicator andbull; Hold reading function andbull; Low battery indicator andbull; Fully waterproof andbull; Auto off function andbull; Automatic temperature compensationandnbsp; Manufacturer's Product Information MSRP each $94 UPC9421024920036 Dimensions7.7 x 1.7 x 7.6 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-ppm-pen-p17492/|http://www.horticulturesource.com/images/BLU2221.jpg|61.9300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2300E|17493|BlueLab Combo Meter|Bluelab BlueLab Combo Meter (BLU2300E)It's all you need for simple and reliable crop management and it's all within arm's reach!The Bluelab Combo Meter is a conductivity, pH and temperature meter all in one.The Bluelab pH Probe and the Bluelab Conductivity/Temperature Probe are simply placed into the solution and the selected reading is displayed on screen.As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops daily nutrient requirements.Calibration of the pH is simple with the push buttons on the meter and fresh calibration solutions. Conductivity and temperature do not need to be calibrated as this is locked in during manufacture.Display options available in anddeg;C, anddeg;F, EC, CF, ppm 500 and ppm 700.Featuresandbull; Lightweight and portableandbull; Large easy to read displayandbull; No calibration required for conductivity and temperatureandbull; Successful pH calibration indicatorandbull; Replaceable double junction pH probeandbull; Low battery indicatorandbull; Simple push button pH calibrationandbull; Battery operatedandbull; Auto off functionandnbsp; Manufacturer's Product Information MSRP each $308 UPC9421024920050 Dimensions8 x 1.7 x 8 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-combo-meter-p17493/|http://www.horticulturesource.com/images/BLU2300E.jpg|203.2800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2320E|17494|Bluelab pH meter with probe|Bluelab Bluelab pH meter with probe (BLU2320E)The Bluelab pH Meter is used to accurately measure the pH value of a solution.Simply place the Bluelab pH probe into the solution and the reading will be displayed on the screen. As the meter is portable and does not need a power supply to operate, it can be used anywhere and anytime to help you manage your crops' daily nutrient requirements.Calibration is simple with the push buttons on the meter and fresh Bluelab calibration solutions.Featuresandbull; Lightweight and portableandbull; Large easy to read displayandbull; Simple push button pH calibrationandbull; Replaceable double junction pH probeandbull; Successful pH calibration indicatorandbull; Over range and under range indicatorsandbull; Battery operatedandbull; Auto off functionandbull; Low battery indicatorandnbsp; Manufacturer's Product Information MSRP each $210 UPC9421024920098 Dimensions5.25 x 2.5 x 8.5 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-ph-meter-with-probe-p17494/|http://www.horticulturesource.com/images/BLU2320E.jpg|138.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU2330E|17495|Soil pH Meter|Bluelab Soil pH Meter (BLU2330E)The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is?Soil pH measuring made simple!If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just what you need.This hand-held meter comes with a Soil pH Probe, Dibber/Auger, pH4.0 and pH 7.0 calibration solutions, plus a helpful Quick Start guide.The Bluelab Soil pH Meter can be used by everybody from the home enthusiast through to more robust commercial applications.Featuresandbull; Lightweight and portable andbull; Large easy to read display andbull; Simple push button pH calibration andbull; Replaceable Soil pH Probe andbull; Successful pH calibration indicator andbull; Battery operated andbull; Auto off function andbull; Low battery indicator5-year warranty (6 months for Soil pH Probe)andnbsp; Manufacturer's Product Information MSRP each $240 UPC9421024920043 Dimensions2.25 x 1 x 8 Case Weight29 Case Quantity15|http://www.horticulturesource.com/bluelab-soil-ph-meter-p17495/|http://www.horticulturesource.com/images/BLU2330E.jpg|157.3000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU24102|17496|Bluelab Replacement pH Probe for Guardian, Combo, and pH Meter|Bluelab Bluelab Replacement pH Probe for Guardian, Combo, and pH Meter (BLU24102)Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double junction reference providing longer life! Manufacturer's Product Information MSRP each $81.95 UPC9421024920104 Dimensions2.25 x 1.15 x 8 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-replacement-ph-probe-for-guardian-combo-ph-meter-p17496/|http://www.horticulturesource.com/images/BLU24102.jpg|46.2000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU24115|17497|Soil pH Probe|Bluelab Soil pH Probe (BLU24115)Handy for direct pH testing of soils or pH soil solutions.The non-refillable Bluelab Soil pH Probe is used to measure the pH levels of soil or media of cropping, pasture, containerised plants, home gardens, propagation culture... anywhere that the soils' pH requires testing.The Bluelab Soil pH Probe can be connected to the Bluelab pH Meter and Bluelab Combo Meter.Featuresandbull; Waterproof cable joint andbull; Single junction andbull; Tough plastic barrel andbull; Gel-filled (non-refillable) andbull; Dibber / auger supplied andbull; 2 meter standard cableandnbsp;andnbsp; Manufacturer's Product Information MSRP each $110 Dimensions1.81 x 1.81 x 7.48 Case Quantity1|http://www.horticulturesource.com/bluelab-soil-ph-probe-p17497/|http://www.horticulturesource.com/images/BLU24115.jpg|72.6000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU24700|17498|Bluelab Guardian Monitor Power Supply|Bluelab Bluelab Guardian Monitor Power Supply (BLU24700)Power supply unit with international plug adaptors for North America, Australia/New Zealand, UK and Europe.Designed specifically for use with the Bluelab Guardian Monitor. Manufacturer's Product Information MSRP each $31.8 UPC9421024920081 Dimensions8.25 x 2 x 10 Case Quantity1|http://www.horticulturesource.com/bluelab-bluelab-guardian-monitor-power-supply-p17498/|http://www.horticulturesource.com/images/BLU24700.jpg|14.9600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU27100|17499|Guardian Monitor|Bluelab Guardian Monitor (BLU27100)In just one glance it magically measures all 3 critical parameters for successful growth; pH, conductivity AND temperature.The Bluelab Guardian Monitor is a constant indicator of the desired levels of EC pm 700/TDS/CF, pH and temperature, enabling the grower to optimise these parameters as the crop progresses through each growing phase.The Bluelab Guardian Monitor is mains powered and is mounted to the wall or hung on a support and the probes simply placed into the reservoir.With the Bluelab Guardian Monitor monitoring your crops 24 hours a day and with the ability to set high and low alarms, a flashing display lets you know if one parameter moves away from the ideal, allowing you to make the required adjustments quickly and effectively.Featuresandbull; Large easy to read displaysandbull; No calibration required for conductivity and temperatureandbull; Simple push button pH calibrationandbull; Selectable values for conductivity and temperature andbull; Flashing high and low alarmsandbull; Temperature compensationandbull; Greater tolerance to RF / electronic interference providedandbull; International power supplyandbull; Replaceable double junction pH probeandbull; Adjustable display brightnessandbull; Non-volatile memory2-year warranty (6 months for pH Probe)andnbsp; Manufacturer's Product Information MSRP each $364 Dimensions3.54 x 0.2 x 3.86 Case Quantity1|http://www.horticulturesource.com/bluelab-guardian-monitor-p17499/|http://www.horticulturesource.com/images/BLU27100.jpg|260.1500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU7000|17502|Bluelab Meter Carry Case|Bluelab Bluelab Meter Carry Case (BLU7000)Bluelab is excited to introduce a new accessory which makes transporting and using their Meters even easier!The Bluelab Carry Case provides a custom fit so you can use and read your Bluelab Meter right from the carry case. A firm outer casing offers impact reduction for your Meter. There are two pockets in the top of the case especially made for meter probes. The internal strap is a tidy way to tuck away the probe cables.Removable and adjustable straps provide even more comfort and convenience. The strap can be hung on the wall or used over your shoulder, keeping the Meter safe and dry in the carry case so only the probes go into the nutrient container. In-between use, we recommend placing dry probes into the pockets. Simply zip the Carry Case to close it, then tuck away safely for storage or transport.Ideal for use with the following Bluelab Metersandbull; Bluelab Combo Meter (Item #BLU2300E)andbull; Bluelab pH Meter (Item #BLU2320E)andbull; Bluelab Soil pH Meter (Item #BLU2330E)andbull; Bluelab pH and ppm Pens (Item #'s BLU2210 and BLU2221)*Please note, meter not included as shown in imageandnbsp;andnbsp; Manufacturer's Product Information MSRP each $25 Dimensions3.54 x 0.2 x 3.86 Case Quantity6|http://www.horticulturesource.com/bluelab-bluelab-meter-carry-case-p17502/|http://www.horticulturesource.com/images/BLU7000.jpg|16.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Bluelab|hf-BLU8000|17504|Bluelab Grower's Toolbox-Limited Edition|Bluelab Bluelab Grower's Toolbox-Limited Edition (BLU8000)A handy pack with everything you need to get going and keep growing!The Bluelab Grower's Toolbox combines the essential tools you need to easily manage your crop by measuring the pH, conductivity (ppm) and temperature of the nutrient solution.Learn the hydroponics basics with the Grow Book, so you can get going...And keep growing with the ultimate handy team, the Bluelab pH Pen and Bluelab ppm Pen. These clever little pens make it easy to measure the nutrient uptake (pH), the amount of food available (ppm) and the solution temperature, so you can create the best nutrient environment for your plants' growth.The Bluelab Probe Care Kit makes maintenance easy to maximize the life and accuracy of the pens probes.With these tools and essentials in one value added pack, The Grower's Toolbox is a complete simple crop management system that helps you get it right, from the start.andnbsp; Manufacturer's Product Information MSRP each $199 UPC051000104311|http://www.horticulturesource.com/bluelab-bluelab-grower-s-toolbox-limited-edition-p17504/|http://www.horticulturesource.com/images/BLU8000.jpg|132.0000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|hf-ESPHTEST|18136|Hydroponic Essentials pH Test Kit|Hydroponic Essentials Hydroponic Essentials pH Test Kit (ESPHTEST)(Wide Spectrum) Measures 3-10 pH.The Hydroponic Essentials pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. This kit covers a pH range of 3-10 measuring in 0.1 increments. Manufacturer's Product Information MSRP each $5.95 UPC638104002318 Dimensions5.9 x 11.7 x 5.9 Case Weight2 Case Quantity12|http://www.horticulturesource.com/hydrofarm-hydroponic-essentials-ph-test-kit-p18136/|http://www.horticulturesource.com/images/ESPHTEST.jpg|3.9400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|FHD (Future Harvest Development)|hf-FH1100046|18184|Nutradip continuous pH/PPM(442)/Temp meter|Nutradip (Tri Meter) Nutradip continuous pH/PPM(442)/Temp meter (FH1100046)The Nutradip Tri-Meter combines the technology of the pHand#8200;and TDS meters and addresses an additional key factor in hydroponic growing, the temperature. Temperature in a nutrient solution is often wrongly overlooked. The temperature variance in a growing operation can significantly restrict the growth and yield of the plant(s). With no effort at all, reliable, continuous reading of TDS, pH, and temperature can simultaneously be monitored and correct levels can easily and reliably be maintained.Water resistantDetachable probes and adapterLarge, easy-to-read LED displayReads ppm in the 442 scale.andnbsp; Manufacturer's Product Information MSRP each $232.95 UPC638104565042 Dimensions5.5 x 5.6 x 15.5 Case Weight9 Case Quantity4|http://www.horticulturesource.com/fhd-future-harvest-development-nutradip-continuous-ph-ppm-442-temp-meter-p18184/|http://www.horticulturesource.com/images/FH1100046.jpg|165.9100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|hf-GH1515|18470|pH Test Kit, 1 oz|General Hydroponics pH Test Kit, 1 oz (GH1515)pH test kitContains pH test fluid and test strips Manufacturer's Product Information MSRP each $7.54 UPC793094015165 Dimensions1.7 x 6 x 1.2 Case Weight3 Case Quantity24|http://www.horticulturesource.com/general-hydroponics-ph-test-kit-1-oz-p18470/|http://www.horticulturesource.com/images/GH1515.jpg|4.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|General Hydroponics|hf-GH1516|18471|pH Test Indicator 8 oz|General Hydroponics pH Test Indicator 8 oz (GH1516)Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution. Manufacturer's Product Information MSRP each $10.76 Dimensions1.7 x 6.2 x 1.7 Case Weight8 Case Quantity12|http://www.horticulturesource.com/general-hydroponics-ph-test-indicator-8-oz-p18471/|http://www.horticulturesource.com/images/GH1516.jpg|7.1100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|hf-HGLABTEST|19036|Hydro RX Water and Soil|Hydrofarm Hydro RX Water and Soil (HGLABTEST)Tired of guessing whether your water's nutrient levels are adequate? Hydro Rx takes the guess-work out of water management. Hydrofarm Test Lab has developed a kit that lets you manage your plants' nutrients with lab-tested precision. Hydro Rx is simple: Just take a source water, hydroponic solution, or soil sample and send it back to Hydrofarm Test Lab in the enclosed mailing envelope. Within 2-4 business days, you'll receive a detailed water analysis. Test results are available online or by email.Test Contact Info:Hydrofarm Lab Phone: (706) 548-4557Website: hydrofarmlab.com Manufacturer's Product Information MSRP each $39.95 UPC638104006606 Dimensions5.5 x 5.5 x 7 Case Weight1 Case Quantity6|http://www.horticulturesource.com/hydrofarm-hydro-rx-water-soil-p19036/|http://www.horticulturesource.com/images/HGLABTEST_2.jpg|28.5700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1220|19181|EC/TDS Probe for HI981409 and HI981410|Hanna Instruments EC/TDS Probe for HI981409 and HI981410 (HI1220)EC/TDS Probe for HI981409 and HI981410 with DIN connector measures 24 cm (9.4") and can be used to mix the fertilizer solution. The meter switches off after five minutes of inactivity to save battery life. The outer casing also incorporates a molded eye so that the meter can be hung right where it is needed.Calibration with this meter is easy and completely automatic. Simply press and hold the on/off button for a few seconds and the meter will request the appropriate calibration solution. Place the probe in the solution and wait until it is calibrated. No extra buttons to push or dials to turn!The tester has been specifically designed to address the needs of operators in hydroponics, greenhouses, and nurseries.FeaturesLightweight -- it floatsWater resistantIdeal for mixing fertilizerAutomatic calibrationAutomatic temperature compensation Manufacturer's Product Information MSRP each $69.95 Dimensions2 x 2 x 10 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ec-tds-probe-for-hi981409-hi981410-p19181/|http://www.horticulturesource.com/images/HI1220.jpg|56.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1230B|19182|Replacement probe for HI9026|Hanna Instruments Replacement probe for HI9026 (HI1230B)This replacement probe supports the combination pH electrode for field applications.The HI 9026 is an advanced pH/ORP meter specifically designed to provide affordable and very precise results under harsh industrial conditions. The meter features a backlit display for clear readings in the darkest environments.When calibration is complete, the electrode condition is displayed, which indicates that the electrode is working properly and when it needs to be cleaned or replaced. Manufacturer's Product Information MSRP each $106.95 Dimensions0.31 x 0.31 x 4.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-replacement-probe-for-hi9026-p19182/|http://www.horticulturesource.com/images/HI1230B.jpg|89.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1270|19183|pH Replacement Electrode for HI98103, HI9910 (Special Order)|Hanna Instruments pH Replacement Electrode for HI98103, HI9910 (HI1270)Spare pH electrode for HI98103 and HI9910 with cloth junction, for general purpose, field applications. Manufacturer's Product Information MSRP each $29.95 Dimensions2 x 1.9 x 9.6 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-replacement-electrode-for-hi98103-hi9910-special-order--p19183/|http://www.horticulturesource.com/images/HI1270.jpg|23.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1285|19184|GroChek replacement probe for HI9813|Hanna Instruments GroChek replacement probe for HI9813 (HI1285)Keep your GroChek HI9813 pH temperature meter running strong with a companion replacement probe. The probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions.The meter this probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming, and nurseries. The meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. Manufacturer's Product Information MSRP each $138.95 Dimensions2 x 1.8 x 9.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-replacement-probe-for-hi9813-p19184/|http://www.horticulturesource.com/images/HI1285.jpg|87.1100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1285-0|19185|GroChek replacement probe for HI9813-0|Hanna Instruments GroChek replacement probe for HI9813-0 (HI1285-0)Keep your pH/conductivity/TDS tester running strong with a GroChek replacement probe. Built for the GroChekandnbsp;HI9813-0, this probe helps make your measurement device fast, efficient, accurate, and portable. Manufacturer's Product Information MSRP each $154.95 Dimensions2 x 2 x 9.6 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-replacement-probe-for-hi9813-0-p19185/|http://www.horticulturesource.com/images/HI1285-0.jpg|106.9200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1285-6|19186|Gro'chek replacement probe for HI9813-6|Hanna Instruments Gro'chek replacement probe for HI9813-6 (HI1285-6)Gro'chek Replacement Probe for H19813-6 Manufacturer's Product Information MSRP each $138.95 Dimensions2 x 2 x 9.6 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-gro-chek-replacement-probe-for-hi9813-6-p19186/|http://www.horticulturesource.com/images/HI1285-6_2.jpg|101.4200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI12855|19187|Grochek Replacement Probe for HI9813-5N and HI9811-5N|Hanna Instruments Grochek Replacement Probe for HI9813-5N and HI9811-5N (HI12855)This pH/EC/TDS/temperature probe probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. It is a replacement electrode for the GroChek series "-5" models: HI9813-5 and HI9813-5N, and is designed for simplicity of use in taking pH, mS/cm, ppm and temperature in the anddeg;C scale measurements.Theandnbsp;meter theandnbsp;probe supports is aandnbsp;versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming, and nurseries. It features a large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. Manufacturer's Product Information MSRP each $129.95 Dimensions2 x 1.9 x 9.6 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-replacement-probe-for-hi9813-5n-hi9811-5n-p19187/|http://www.horticulturesource.com/images/HI12855.jpg|103.6100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1286|19188|pH Electrode with 2 m (6.6') cable for HI981401N, HI981404N, and HI9815047|Hanna Instruments pH Electrode with 2 m (6.6') cable for HI981401N, HI981404N, and HI9815047 (HI1286)pH electrode with 2 m (6.6') cable for HI981401N, HI981404N, and HI9815047.Why keep a spare electrode on hand? Always have an extra in case of breakage, contamination, or simply to keep electrodes fresh and new. Manufacturer's Product Information MSRP each $65.95 Dimensions9.5 x 2 x 2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-electrode-with-2-m-6-6-cable-for-hi981401n-hi981404n-hi9815047-p19188/|http://www.horticulturesource.com/images/HI1286.jpg|52.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1292D|19189|pH Combo Electrode Glass Body - Refillable Temp. Sensor (Special Order)|Hanna Instruments pH Combo Electrode Glass Body - Refillable Temp. Sensor (HI1292D)pH Combo Electrode Glass Body - Refillable Temp. Sensor Manufacturer's Product Information MSRP each $192.95 Dimensions2 x 2 x 10 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-combo-electrode-glass-body-refillable-temp-sensor-special-order--p19189/|http://www.horticulturesource.com/images/HI1292D-n.jpg|151.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI1333B|19190|pH Combination Electrode (SPECIAL ORDER)|Hanna Instruments pH Combination Electrode (HI1333B) (SPECIAL ORDER)pH combination electrode Ultem body double-junction, refillable, cloth junction, gel filled, 1m cable Manufacturer's Product Information MSRP each $60.95 Dimensions2.75 x 0.25 x 5.75|http://www.horticulturesource.com/hanna-instruments-ph-combination-electrode-special-order--p19190/|http://www.horticulturesource.com/images/HI1333B.jpg|52.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI73127|19211|Replacement pH Electrode for HI98127, HI98128, HI98129, and HI98130|Hanna Instruments Replacement pH Electrode for HI98127, HI98128, HI98129, and HI98130 (HI73127)Replacement pH Electrode for HI98127, HI98128, HI98129, and HI98130 Manufacturer's Product Information MSRP each $62.95 Dimensions4 x 1 x 14 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-replacement-ph-electrode-for-hi98127-hi98128-hi98129-hi98130-p19211/|http://www.horticulturesource.com/images/HI73127.jpg|52.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI76305|19212|Conductivity/TDS Probe for Soil Measurement of HI993310 (SPECIAL ORDER)|Hanna Instruments Conductivity/TDS Probe for Soil Measurement of HI993310 (HI76305)(SPECIAL ORDER) Stainless steel conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3') cable for direct soil measurement.For use with HI993310 only.andnbsp; Manufacturer's Product Information MSRP each $156.95 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-conductivity-tds-probe-for-soil-measurement-of-hi993310-special-order--p19212/|http://www.horticulturesource.com/images/HI76305.jpg|134.6300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI7632|19213|GroChek EC Electrode|Hanna Instruments GroChek EC Electrode (HI7632)Hanna replacement EC electrode for pocket testers. Manufacturer's Product Information MSRP each $57.95 Dimensions3 x 1.8 x 6.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ec-electrode-p19213/|http://www.horticulturesource.com/images/HI7632.jpg|43.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI97500|19214|Digital Light Meter (SPECIAL ORDER)|Hanna Instruments Digital Light Meter (HI97500) (SPECIAL ORDER)Designed for simplicity of use in taking rapid light measurements, this product is a portable lux meter designed to perform light measurements simply and accurately. The instrument is supplied with a light sensor connected by a fixed 1.5 m coaxial cable to allow measurements to be taken from a distance without any interference from the operator.By simply pressing the RANGE key, users can switch among three ranges to choose the best resolution according to the environment being tested. The HI 97500 lux meter has a rugged and water-resistant body for frequent outdoor use.The HI 97500 features a low battery indicator and automatic shut-off feature that turns the meter of after 7 minutes of non-use. Powered by a single 9V battery, this instrument guarantees about 200 hours of continuous operation.FeaturesThree measurement rangesLight sensor attached to 1.5 meter coaxial cableRugged, waterproof caseLow-battery indicator Manufacturer's Product Information MSRP each $163.95 Dimensions2.7 x 1.5 x 8.4 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-digital-light-meter-special-order--p19214/|http://www.horticulturesource.com/images/HI97500.jpg|131.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98103|19215|Checker pH Tester with Replaceable Electrode|Hanna Instruments Checker pH Tester with Replaceable Electrode (HI98103)The pH Checker supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration.The pH electrode of the Checker can be easily replaced. You only need to unscrew the electrode from the meter body and screw on a new one.The Checker is fast, accurate, lightweight, and with 3000 hours of battery life, you won't have to worry about frequent battery replacement.andnbsp;FEATURESHigh accuracy with 0.01 pH resolutionTwo point fast and accurate calibrationCompatible with virtually any electrode that shares the same connector3,000 hours of battery lifeSmall diameter probe fitseasily into a test tubeIncludes pH electrode, batteries, and instructions Manufacturer's Product Information MSRP each $40.95 Dimensions8 x 2 x 11 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-checker-ph-tester-with-replaceable-electrode-p19215/|http://www.horticulturesource.com/images/HI98103.jpg|27.7100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98103H|19216|Hanna pH Kit for Hydroponics|Hanna Instruments Hanna pH Kit for Hydroponics (HI98103H)Economical pH kit for all hydroponic growers. The Checker1 is easy to calibrate, uses a replaceable pH electrode and works for 3000 hours before you have to change the batteries!Kit includes:andbull; HI98103andbull; Hard Plastic Caseandbull; Screwdriver for Calibrationandbull; pH 7.01 and 4.01 Sachetsandbull; Cleaning Solution Sachetsandnbsp; Manufacturer's Product Information MSRP each $48.95 Dimensions2.7 x 1.4 x 8.4|http://www.horticulturesource.com/hanna-instruments-hanna-ph-kit-for-hydroponics-p19216/|http://www.horticulturesource.com/images/13392_hannalogo.jpg|37.9200|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98106|19217|Champ pH Tester|Hanna Instruments Champ pH Tester (HI98106)The Champ revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH measurement.This tester is used by millions of people around the world to monitor pH in laboratories and industrial applications as well as in agriculture, fish farming, food manufacturing and quality control, swimming pools, and the printing industry.With a renewable cloth junction, the Champ has an extended life over typical pH testers. A normal junction clogs with use over time and a typical tester would normally have to be thrown away once the junction is too contaminated. Instead, this junction is 2 cm long and when dirty, can be pulled out to expose a fresh section to effectively renew the Champandrsquo;s life.Calibration is performed manually at 1 point with a trimmer located on the side of the tester.With a battery life of 800 hours of continuous use, the Champ will provide years of testing before the batteries need to be replaced.FeaturesAccuracy (@20C/68F): 0.2 pH Calibration: Manual 1 point Temperature compensation: NA Battery type / life 400 hours Renewable junctionEasyandnbsp;one point manual calibration800 hour battery lifeSimple to useEconomicalIncludes protective cap, calibration screwdriver, batteries, and instructions Manufacturer's Product Information MSRP each $62.95 Dimensions2.7 x 1.4 x 8.3 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-champ-ph-tester-p19217/|http://www.horticulturesource.com/images/HI98106.jpg|43.7600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98107|19218|pHep|Hanna Instruments pHep (HI98107)The pHep revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH measurement.This toolandnbsp;is used by millions of people around the world to monitor pH in laboratories and industrial applications as well as in agriculture, fish farming, food manufacturing and quality control, swimming pools, and the printing industry.With a renewable cloth junction, the pHep has an extended life over typical pH testers. A normal junction clogs with use over time and a typical tester would normally have to be thrown away once the junction is too contaminated.andnbsp;Instead, theandnbsp;junction here is 2 cm long and when dirty, can be pulled out to expose a fresh section to effectively renew the pHepandrsquo;s life.Calibration is performed manually atandnbsp;one or two points with a trimmer located on the side of the tester.With a battery life of 700 hours of continuous use, the pHep will provide years of testing before the batteries need to be replaced.FeaturesRenewable junctionEasyandnbsp;one or two points manual calibration700 hour battery lifeSimple to useEconomicalIncludes protective cap, calibration screwdriver, batteries, and instructions Manufacturer's Product Information MSRP each $66.95 Dimensions1.75 x 2.5 x 6.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-phep-p19218/|http://www.horticulturesource.com/images/HI98107.jpg|36.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9811-5N|19219|PH/EC/TDS/C Portable Meters|Hanna Instruments PH/EC/TDS/C Portable Meters (HI9811-5N)Experience ease and simplicity in taking pH, andmicro;S/cm, ppm (mg/L), and temperature measurements with this pH/EC/TDS waterproof meter, which is ideal for hydroponics, greenhouses, farming, and groundwater applications.Due to the built-in temperature sensor, conductivity readings are automatically compensated for temperature changes. The temperature coefficient is fixed at 2%/anddeg;C.No probe changes are required when switching your measured parameter between pH, conductivity, and TDS. These multiparameter meters reduce the number of instruments required for daily water quality analysis.The specially engineered pH/EC/TDS and temperature probe utilizes a fiber junction and gel electrolyte which provide a fast response and reduced contamination. This combination makes theandnbsp;meter particularly designed to withstand harsh environments such as fertilizer solutions.FeaturesWater resistantOn-screen tutorial messages for calibrationSwitch parameters at the touch of a buttonAutomatic temperature compensation for pH and conductivitySimple calibration; dials located on the front panel makes calibration quick and simple, even for non-technical usersBEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readingsBattery % displayed on startupFast response probe includedLarge LCD Manufacturer's Product Information MSRP each $244.95 Dimensions2.7 x 1.2 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-ec-tds-c-portable-meters-p19219/|http://www.horticulturesource.com/images/HI9811-5N.jpg|188.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98121|19220|Combo pH/ ORP/ Temperature Tester|Hanna Instruments Combo pH/ ORP/ Temperature Tester (HI98121)andbull; Waterproof and it floats!andbull; HANNA's exclusive cartridge pH and ORP electrodeandbull; Extendable cloth pH junctionandbull; Automatic Temperature Compensationandbull; Automatic calibrationandbull; Battery % Level at startup and stability indicatorandbull; HOLD functionHI98121 is a waterproof meter that measures pH, ORP and temperature. The housing of this tester has been completely sealed against humidity and are designed to float.Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement.When the cloth junction becomes clogged and response time is sluggish, simply pull out 3 mm (1/8") to clear the clogging which will improve response time and stability.The exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement.andnbsp; Manufacturer's Product Information MSRP each $174.95 Dimensions2.7 x 1.3 x 8.2|http://www.horticulturesource.com/hanna-instruments-combo-ph-orp-temperature-tester-p19220/|http://www.horticulturesource.com/images/HI98121.jpg|168.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98127|19221|Hanna GroChek pHEP 4 Meter|Hanna Instruments Hanna GroChek pHEP 4 Meter (HI98127)The pHEPandnbsp;4 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut-off, electrode removal tool, and automatic calibration -- all in a floating, waterproof casing.It is ideal for users who require the greatest accuracy and features while staying economical.FeaturesWaterproof and designed to float Automatic temperature compensation Automatic calibration Tactile grip casings HOLD function Automatic shut-off Efficient two button operation Temperature in anddeg;C or anddeg;F BEPS (Battery Error Prevention System) Battery % displayed at startup Manufacturer's Product Information MSRP each $113.95 Dimensions2.7 x 1.2 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-phep-4-meter-p19221/|http://www.horticulturesource.com/images/HI98127.jpg|83.8100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98128|19222|Hanna GroChek pHEP 5 Meter|Hanna Instruments Hanna GroChek pHEP 5 Meter (HI98128)The pHEP 5 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut-off, electrode removal tool, and automatic calibration -- all in a floating, waterproof casing.It is ideal for users who require the greatest accuracy and features while staying economical.Featuresandnbsp;Waterproof and designed to floatAutomatic temperature compensationAutomatic calibrationTactile grip casingsHOLD functionAutomatic shut-offEfficient two button operationTemperature in anddeg;C or anddeg;FBEPS (Battery Error Prevention System)Battery % displayed at startup Manufacturer's Product Information MSRP each $132.95 Dimensions2.7 x 1.3 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-hanna-grochek-phep-5-meter-p19222/|http://www.horticulturesource.com/images/HI98128.jpg|92.3900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98129|19223|Combo pH/EC/TDS/C/PPM Tester|Hanna Instruments Combo pH/EC/TDS/C/PPM Tester (HI98129)Thisandnbsp;waterproof tester offers high accuracy pH, EC/TDS, and temperature measurements all in a single tester! No more switching between meters for your routine measurements. This floating, waterproof combination tester has an easy to read LCD and an automatic shut-off. pH and EC/TDS readings are automatically temperature compensated.This tester features a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode. The extendable cloth junction provides an extended electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted.The EC/TDS conversion factor is user-selectable as well as the temperature compensation coefficient (andbeta;).Fast, efficient, accurate and portable, the combo pH, EC/TDS, and temperature tester combines all the features users have requested and more!Dual-level LCDReplaceable pH electrode cartridgeMeasures in PPM (parts per million)Waterproof and designed to floatCloth, renewable junctionClose proximity temperature probeAutomatic temperature compensationAutomatic 1 or 2 point pH calibrationTactile grip casingsHOLD functionBEPS (Battery Error Prevention System)Battery % displayed at startupAutomatic shut-offEfficient two button operationTemperature in anddeg;C or anddeg;F; easily switch between Celsius and Fahrenheit readoutsComes with electrode, electrode removal tool, batteries, and instructions Manufacturer's Product Information MSRP each $194.95 Dimensions1.75 x 2.5 x 6.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-combo-ph-ec-tds-c-ppm-tester-p19223/|http://www.horticulturesource.com/images/HI98129.jpg|141.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9813-5N|19224|GroChek pH/EC/TDS/C Portable Meter|Hanna Instruments GroChek pH/EC/TDS/C Portable Meter (HI9813-5N)HI 9813-5 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries.This meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument.HI 9813-5 is a pH/EC/TDS meter designed for simplicity of use in taking pH, mS/cm, ppm and temperature in the anddeg;C scale measurements.This instrument utilizes the HI 1285 series pH/EC/TDS/temperature probe. This probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions.andbull; Water resistantandbull; On-screen tutorial messages for calibrationandbull; BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely andnbsp; affect readingsandbull; Switch parameters at the touch of a buttonandbull; Automatic Temperature Compensation for pH and conductivityandbull; Simple calibration; Dials located on the front panel makes calibration quick and simple, even for andnbsp; non-technical usersandbull; Battery % displayed on startupandbull; Fast response multiparameter probeandnbsp; Manufacturer's Product Information MSRP each $283.95 Dimensions1.75 x 2.5 x 6.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ph-ec-tds-c-portable-meter-p19224/|http://www.horticulturesource.com/images/HI9813-5N.jpg|182.8400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9813-6N|19225|GroChek pH/EC/TDS/C Portable meter|Hanna Instruments GroChek pH/EC/TDS/C Portable meter (HI9813-6N)HI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries.This meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument.HI 9813-6 includes all the features of the HI 9813-5 while incorporating our exclusive CAL CHECKTM feature. CAL CHECKTM allows the user to easily check the pH probe calibration status at any time.This instrument utilizes the HI 1285 series pH/EC/TDS/temperature probe. This probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions.andbull; Water resistantandbull; On-screen tutorial messages for calibrationandbull; Exclusive CAL CHECK feature; Alerts users of calibration statusandbull; BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely andnbsp; affect readingsandbull; Switch parameters at the touch of a buttonandbull; Automatic Temperature Compensation for pH and conductivityandbull; Simple calibration; Dials located on the front panel makes calibration quick and simple, even for andnbsp; non-technical usersandbull; Battery % displayed on startupandbull; Fast response multiparameter probeandnbsp; Manufacturer's Product Information MSRP each $283.95 Dimensions2.7 x 1.4 x 8.4 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ph-ec-tds-c-portable-meter-p19225/|http://www.horticulturesource.com/images/HI9813-6N.jpg|193.3700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98130|19226|GroChek Hanna pH/EC/TDS/C/PPT Pocket Tester|Hanna Instruments GroChek Hanna pH/EC/TDS/C/PPT Pocket Tester (HI98130)Here is a waterproof tester that offers high accuracy pH, EC/TDS, and temperature measurements in a single tester! No more switching between meters for your routine measurements. This floating, waterproof combination tester has an easy to read LCD and an automatic shut-off. pH and EC/TDS readings are automatically temperature compensated.This tester features a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode. The extendable cloth junction provides an extended electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted.The EC/TDS conversion factor is user-selectable as well as the temperature compensation coefficient (andbeta;).Fast, efficient, accurate and portable, the combo pH, EC/TDS and temperature tester combines all the features users have requested and more!Dual-level LCDMeasures in PPT (parts per trillion)Waterproof and designed to floatCloth, renewable junctionClose proximity temperature probeAutomatic temperature compensationAutomatic 1 or 2 point pH calibrationTactile grip casingsHOLD functionBEPS (Battery Error Prevention System)Battery % displayed at startupAutomatic shut-offEfficient two button operationTemperature in anddeg;C or anddeg;F; easily switch between Celsius and Fahrenheit readoutsIncludes electrode, electrode removal tool, batteries, and instructionsHI98129 Shown Above Manufacturer's Product Information MSRP each $194.95 Dimensions5.6 x 2.4 x 8.1 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-hanna-ph-ec-tds-c-ppt-pocket-tester-p19226/|http://www.horticulturesource.com/images/HI98130.jpg|141.2300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI981401N|19227|GroChek Hanna pH Indicator|Hanna Instruments GroChek Hanna pH Indicator (HI981401N)This pH indicator has been designed to meet the grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. The housing is water-resistant and features a molded eye which allows installation right above the sample to be monitored.Measurements are highly accurate and can be verified with two point calibration. With a 12 VDC power supply included with the meter, low battery failures are never an issue. The electrode is interchangeable and the connector is well protected behind a waterproof sleeve. The meter is supplied with a stainless steel probe, preventing potential grounding problems and ensuring extended electrode life.The gel-filled pH electrode has been specially designed to address the needs of growers. Its design guarantees greater clogging resistance in fertilizer solutions with high concentrations of nutrients such as phosphate and nitrate.FeaturesWater resistantOne or two point calibrationElectrode clog resistanceRugged housing Large LCD Manufacturer's Product Information MSRP each $119.95 Dimensions7.8 x 5.4 x 7.8 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-hanna-ph-indicator-p19227/|http://www.horticulturesource.com/images/HI981401N.jpg|103.6100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI981404N|19228|GroChek pH and TDS Combo Continuous Reading Meter|Hanna Instruments GroChek pH and TDS Combo Continuous Reading Meter (HI981404N)This continuous reading meter is ideal for agricultural, horticultural, and hydroponics applications where pH and TDS levels need to be continuously monitored for optimal plant growth. This instrument continuously monitors and displays the values of a solution on an easy to read set of LCDs.The gel-filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sleeve. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc. TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings.This model is equipped with a grounding bar to ensure highly accurate pH readings and longer electrode life. It is compact and easy to install and use, making it ideal for all continuous monitoring applications.FeaturesDisplays pH and EC simultaneouslyAdjustable setpointsSpace efficientTwo parameters with a single instrumentAdvanced electrode technologySimple operation and maintenanceReady to useIncludes pH electrode, TDS probe, grounding bar, calibration solutions, screwdriver for calibration, 12 VDC adapter, and instructions Manufacturer's Product Information MSRP each $210.95 Dimensions4.6 x 1.7 x 14.3 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ph-tds-combo-continuous-reading-meter-p19228/|http://www.horticulturesource.com/images/HI981404N.jpg|164.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI981408|19229|GroChek pH Tester|Hanna Instruments GroChek pH Tester (HI981408)This tester has been specifically designed to address the needs of growers in hydroponics, greenhouses, and nurseries.The meter has all the features necessary to check the pH of the fertilizer solution during preparation. With a sturdy body, it also floats so that it can be quickly retrieved if accidentally dropped in the tank.Frequent battery replacement is no longer an issue --andnbsp;the HI 981408 will run for 2,000 hours continuously on common AA-type batteries. This translates into more than 2 years of continuous use up to 2 hours a day, seven days a week! Calibration has been simplified to one point through a dial on the front of the meter. The outer casing also incorporates a molded eye so you can hang the meter when not in use.FeaturesShock resistant casingWater resistant housingReplaceable electrodeShock-resistant casingLong probe is ideal for fertilizer solution in tanks and vats2,000 hours of operation on 2 AA batteriesFloatingReplaceable probeIncludes pH electrode, pH 7 buffer solution, batteries, and instructions Manufacturer's Product Information MSRP each $113.95 Dimensions2.7 x 1.2 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ph-tester-p19229/|http://www.horticulturesource.com/images/HI981408.jpg|75.2100|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI981409|19230|GroChek TDS Tester|Hanna Instruments GroChek TDS Tester (HI981409)This TDS tester has been specifically designed to address the needs of operators in hydroponics, greenhouses, and nurseries.Calibration is easy and completely automatic. Simply press and hold the on/off button for a few seconds and the meter will request the appropriate calibration solution. Place the probe in the solution and wait until it is calibrated. No extra buttons to push or dials to turn!Theandnbsp;probe measures 24 cm (9.4") and can be used to mix the fertilizer solution. The meter switches off after five minutes of inactivity to save battery life. The outer casing also incorporates a molded eye so that the meter can be hung right where it is needed.FeaturesLightweight -- it floatsWater resistantIdeal for mixing fertilizerAutomatic calibrationAutomatic temperature compensationRugged housing Large LCD Manufacturer's Product Information MSRP each $115.95 Dimensions2.7 x 1.2 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-tds-tester-p19230/|http://www.horticulturesource.com/images/HI981409.jpg|76.5300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI981410|19231|GroChek EC Tester|Hanna Instruments GroChek EC Tester (HI981410)This EC tester has been specifically designed to address the needs of operators in hydroponics, greenhouses, and nurseries.Calibration is easy and completely automatic. Simply press and hold the on/off button for a few seconds and the meter will request the appropriate calibration solution. Place the probe in the solution and wait until it is calibrated. No extra buttons to push or dials to turn!The probe measures 24 cm (9.4") and can be used to mix fertilizer solution. The meter switches off after five minutes of inactivity to save battery life. The outer casing also incorporates a molded eye so that the meter can be hung right where it is needed.Ideal for hydroponics and greenhousesWaterproof housing floats for quick retrievalAuto switch-off for longer battery lifeFertilizer mixer (long and rugged probe)Lightweight -- it floatsWater resistantIdeal for mixing fertilizerAutomatic temperature compensation Manufacturer's Product Information MSRP each $115.95 Dimensions6 x 2.5 x 8.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ec-tester-p19231/|http://www.horticulturesource.com/images/HI981410.jpg|76.5300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9814110|19232|Mini pH Controller|Hanna Instruments Mini pH Controller (HI9814110)The mini pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple and effective process control. The unit is provided with high impedance pH input and can be used with any pH electrode with standard BNC connector. Measurements are clearly displayed on the LCD, while the status LED indicates operating mode.The controller also features a dosing relay. Acid dosing causes the relay to activate when the measurement is higher than the set point. If the basic dosing is selected, the relay is activated when the reading falls below the set point.Set point adjustment (from 0 to 14 pH) and calibration procedures are easily performed with trimmers on the front panel. Users can choose from automatic or manual dosing modes with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits operators to enable or disable the dosing relay according to need. An overtime control system advises users when the relay is active too long, to help prevent overdosing.Simple to operate pH controller User-selectable acid or alkaline relay Use where space and cost are major concerns Applications include hydroponics, swimming pools, fertilizers Easy to handleFire-retardant casingSelectable overdose protection systemSplash resistant coverIncludes mounting brackets, transparent cover, and instruction manualandnbsp; Manufacturer's Product Information MSRP each $213.95 Dimensions7.8 x 5.1 x 7 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-mini-ph-controller-p19232/|http://www.horticulturesource.com/images/HI9814110.jpg|155.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9815045|19233|Cont. pH/TDS/temp Monitor (Special Order)|Hanna Instruments Cont. pH/TDS/temp Monitor (HI9815045)Designed for continuous monitoring of pH, TDS, and temperature, the monitor is simple to install and can be placed above the sample to be tested. pH, TDS, and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance - even in low light. No more switching between parameters.Users can easily select the temperature unit (anddeg;C or anddeg;F) on the back panel.The gel-filled pH electrode is provided with a waterproof sleeve to protect the BNC connector. The unique design of the electrode provides longer life in aggressive solutions. The TDS probe is easy to clean and requires little maintenance. Measurements are accurate and the meter can be calibrated at one or two points for pH and at a single point for TDS. Temperature is factory calibrated.FEATURESSimultaneous display of pH, TDS, and temperatureContinuous measurementsMeasure in anddeg;C or anddeg;FThree backlit displaysIncludes pH electrode, TDS probe (fixed), temperature probe (fixed), pH 4.01 buffer solution sachet, pH 7.01 buffer solution sachet,1382 ppm calibration solution sachet, electrode cleaning solution sachet (2), screwdriver, 12 VDC adapter, and instructions Manufacturer's Product Information MSRP each $252.95 Dimensions7.8 x 5.1 x 7 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-cont-ph-tds-temp-monitor-special-order--p19233/|http://www.horticulturesource.com/images/HI9815045.jpg|197.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9815047|19234|Continuous pH/TDS/temp Monitor|Hanna Instruments Continuous pH/TDS/temp Monitor (HI9815047)Designed for continuous monitoring of pH, TDS, and temperature, this device is simple to install and can be placed above the sample to be tested. pH, TDS, and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance - even in low light. This means no more switching between parameters.Set-up is simple. Install the monitor near the sample to be tested, plug the indicator in, and immerse the probes. Users can easily select the temperature unit (anddeg;C or anddeg;F) on the back panel.The gel-filled pH electrode is provided with a waterproof sleeve to protect the BNC connector. The unique design of the electrode provides longer life in aggressive solutions. The TDS probe is easy to clean and requires little maintenance. Measurements are accurate and the meter can be calibrated at one or two points for pH and at a single point for TDS. Temperature is factory calibrated.FeaturesSimultaneous display of pH, TDS, and temperatureContinuous measurementsMeasure in anddeg;C or anddeg;FThree backlit displaysIncludes pH electrode, TDS probe (fixed), temperature probe (fixed), pH 4.01 buffer solution sachet, pH 7.01 buffer solution sachet, 1382 ppm calibration solution sachet, electrode cleaning solution sachet (2), screwdriver, 12 VDC adapter, and instructions Manufacturer's Product Information MSRP each $262.95 Dimensions2.7 x 1.4 x 8.3 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-continuous-ph-tds-temp-monitor-p19234/|http://www.horticulturesource.com/images/HI9815047.jpg|197.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98301|19235|DiST 1 TDS Tester|Hanna Instruments DiST 1 TDS Tester (HI98301)DiSTs are rugged and reliable pocket-sized testers that offer quick and accurate readings of conductivity or TDS. The DiST family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics, and the printing industry.This tester features an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of TDS is based on Ohmandrsquo;s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will affect accuracy. The DiSTandrsquo;s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results.When calibration is necessary, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester.Automatic temperature compensationEasy-to-use and inexpensiveGraphite electrodesComes with protective cap, screwdriver, batteries, and instructions Manufacturer's Product Information MSRP each $77.95 Dimensions2.7 x 1.3 x 8.4 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-dist-1-tds-tester-p19235/|http://www.horticulturesource.com/images/HI98301.jpg|48.8300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI98311|19236|DiST 5 EC/TDS Meter|Hanna Instruments DiST 5 EC/TDS Meter (HI98311)When the original DiST (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST's ease of use, in combination with its affordability, made it the standard in EC and TDS measurement. HANNA continues the standard in EC and TDS testing with the DiST 5.This tester includes features such as a replaceable graphite electrode, adjustable TDS ratio, anddeg;C or anddeg;F measurement, automatic temperature compensation (ATC) with adjustable andbeta;, battery level indicator, stability indicator, automatic shut-off, and automatic calibration.The graphite conductivity electrode provides greater accuracy because it resists contamination by salt deposits in the sample.All of these features are packed in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC/TDS/ temperature measurements.FeaturesDual-level LCDReplaceable graphite electrode cartridgeAutomatic calibrationWaterproof -- it floatsHigh accuracyAutomatic calibration and temperature compensationHOLD functionBEPS (Battery Error Prevention System)Includes probe, probe removal tool, batteries, and instructions Manufacturer's Product Information MSRP each $130.95 Dimensions5.7 x 2.3 x 8.2 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-dist-5-ec-tds-meter-p19236/|http://www.horticulturesource.com/images/HI98311.jpg|93.0500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI983301N|19237|GroChek Hanna EC/TDS Monitor w/ HI7632 EC Probe|Hanna Instruments GroChek Hanna EC/TDS Monitor w/ HI7632 EC Probe (HI983301N)Waterproof and chemically resistant, this monitor has been designed to meet the grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. At startup, the meter performs a self-check to ensure proper working condition.This monitor from Hanna has a backlit LCD and displays instantaneous readings of both EC or TDS and temperature-even from a distance.The instrument features a stability indicator that prompts the user when to take the reading. For manual recording purposes, readings can be frozen on the LCD display by pressing the HOLD button.Calibration and temperature compensation are automatic, while the EC/TDS conversion factor and temperature coefficient factor (andbeta;) are user adjustable for application specific measurements.Large liquid crystal display for easy readingHousing completely sealed against vapors and humityProbe automatically compensates for temperature variationWaterproofMeasure in anddeg;C or anddeg;FHOLD functionAdjustable TDS ratioAdjustable andbeta;Stability indicatorBacklit display12 VDC power supplyIncludes conductivity probe, 1413 andmicro;S/cm calibration solution sachet, 12 VDC adapter, and instructions Manufacturer's Product Information MSRP each $114.95 Dimensions5.7 x 2.3 x 8.1 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-hanna-ec-tds-monitor-w-hi7632-ec-probe-p19237/|http://www.horticulturesource.com/images/HI983301N.jpg|75.8700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI983302N|19238|GroChek EC Monitor|Hanna Instruments GroChek EC Monitor (HI983302N)WaterproofRugged HousingLarge LCD Manufacturer's Product Information MSRP each $114.95 Dimensions4.52 x 1 x 7 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ec-monitor--p19238/|http://www.horticulturesource.com/images/HI983302N.jpg|89.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI99104H|19239|pH Tester for Hydroponics|Hanna Instruments pH Tester for Hydroponics (HI99104H)Economical pH tester for all hydroponic growers. The HI99104 is easy to calibrate (no tools required!), uses a replaceable pH electrode and works for 1000 hours before having to change the batteries.HI99104 is supplied with HI1270 pH electrode, batteries, and instructions. Manufacturer's Product Information MSRP each $42.95 Dimensions12 x 3.5 x 9.5|http://www.horticulturesource.com/hanna-instruments-ph-tester-for-hydroponics-p19239/|http://www.horticulturesource.com/images/HI99104H.jpg|35.9000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI99121N|19240|pH Soil Meter (Special Order)|Hanna Instruments pH Soil Meter (HI99121N)Withandnbsp;this direct soil pre-amplified pH and temperature probe,andnbsp;you can test both the pH of soil directly or after preparation of a diluted sample.The meterandnbsp;features a conical, rugged tip that can be directly inserted in moist or soft soil. For harder soils, the kit includes a plastic auger to perforate the ground.FeaturesDedicated to soil pH measurementSpecialized soil pH electrodeMulti-level LCD displayUser-friendly operation using only 2 buttonsOn-screen tutorial messagesAutomatic temperature compensationAutomatic one or two point calibrationBEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readingsBattery % displayed on startupCompact, heavy-duty, and waterproof Manufacturer's Product Information MSRP each $454.95 Dimensions7.2 x 5.3 x 7.8 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-soil-meter-special-order--p19240/|http://www.horticulturesource.com/images/HI99121N.jpg|376.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI991404|19241|GroChek pH/EC/TDS/Temp. Combo|Hanna Instruments GroChek pH/EC/TDS/Temp. Combo (HI991404)This indicator continuously monitors the three most crucial nutrient parameters in hydroponic, greenhouse, and horticultural applications.At startup, the GroChek performs a self-check to assure proper working condition. The stability indicator and HOLD function lets the user know when to take readings and freezes the reading on display for easy and accurate recording.This instrument is supplied with a non-clogging double junction pH electrode as well as a rugged conductivity probe that will withstand even the most aggressive environments. The 12 VDC adapter makes these instruments ideal for all continuous monitoring applications.Please note: This item cannot work with a digital ballast. FeaturesLarge, dual-level backlit LCDWaterproofAuto calibration and pH temp. computingAdjustable TDS ratio and adjustable andbeta;Stability indicator and HOLD Manufacturer's Product Information MSRP each $246.95 Dimensions11 x 4 x 15 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-grochek-ph-ec-tds-temp-combo-p19241/|http://www.horticulturesource.com/images/HI991404.jpg|184.1300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI993310|19242|Soil Conductivity/Salinity Meter w/ Carrying Case (SPECIAL ORDER)|Hanna Instruments Soil Conductivity/Salinity Meter w/ Carrying Case (HI993310) (SPECIAL ORDER) Thisandnbsp;instrument was designed to address the need for fast and accurate conductivity measurements in soil and liquids. It is supplied with two probes: a stainless steel, conical tip for direct soil measurement and one for fertilizer-enriched solutions.The meter measures the soil conductivity in EC (mS/cm) as well as salt activity (g/L). The different scales can be selected through two keys on the front panel and two separate LEDs indicate which parameter is being tested. In addition,andnbsp;it andnbsp;is equipped with an alarm LED that illuminates if the soil is too dry or nutritive substances such as potassium or nitrogen are lacking. Demineralized water can be added to the soil prior to proceeding with further tests.Direct soil measurement is facilitated by the stainless steel probe. Once the probeandnbsp;inserted into the ground, just wait until the meter displays the value.FeaturesProbes for liquid and direct soil measurementAutomatic temperature compensationBEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readingsIncludes probes, battery, instructions, and rugged carrying case Manufacturer's Product Information MSRP each $639.95 Dimensions10.38 x 7.25 x 12.5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-soil-conductivity-salinity-meter-w-carrying-case-special-order--p19242/|http://www.horticulturesource.com/images/HI993310.jpg|508.8500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HI9935-1|19243|WM pH TDS Cntrl. 15 VAC|Hanna Instruments WM pH TDS Cntrl. 15 VAC (HI9935-1)Add this 2-in-1 pH and TDS controller engineered for economical dosage of fertilizer solutions in hydroponics to your growroom.The productandnbsp;measures pH from 0 to 14 and TDS from 0 to 1999 mg/L (ppm). Two separate set points can be adjusted from 4 to 7 pH and 900 to 1800 ppm (mg/L). The relays are activated when the pH exceeds the set point or TDS falls below the desired value. Two pumps or electrovalves can be wired directly to the controller and be powered through the terminals. Independent proportional settings for pH and TDS can be adjusted from 0 to 90 seconds, 0 to 2.0 for pH, and 0 to 400 mg/L (ppm) for TDS. A matching pin/ground probe can be connected to the appropriate terminals to extend electrode life and eliminate interference.Included isandnbsp;an alarm relay, which is activated in several circumstances such as when the pH is below the set points in the operator-adjustable threshold of 0.5 to 2.5 pH, or similarly, TDS exceeds the set point by a value in the 50 to 450 mg/L (ppm) range. The alarm also goes off if the pH and/or TDS are not corrected within the operator-determined time frame of 1 to 10 minutes. Moreover, the alarm configuration is switchable from a normally-closed to a normally-open state or turned off during maintenance. The fertilization status can be ascertained from a distance through dosage and alarm LEDs.Use this product withandnbsp;pH electrodes with a BNC connector and TDS probes with a DIN connector. Manufacturer's Product Information MSRP each $777.95 Dimensions2.1 x 3.3 x 3.9 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-wm-ph-tds-cntrl-15-vac-p19243/|http://www.horticulturesource.com/images/HI9935-1.jpg|560.9900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HIBL981411-1|19244|pH Controller 115V|Hanna Instruments pH Controller 115V (HIBL981411-1)This pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple and effective process control. The unit is provided with high impedance pH input and can be used with any pH electrode with standard BNC connector. Measurements are clearly displayed on the LCD, while the status LED indicates operating mode.The controllerandnbsp;includes a dosing relay. Acid dosing causes the relay to activate when the measurement is higher than the set point. If the basic dosing is selected, the relay is activated when the reading falls below the set point.Set point adjustment (from 0 to 14 pH) and calibration procedures are easily performed with trimmers on the front panel. Users can choose from automatic or manual dosing modes with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits operators to enable or disable the dosing relay according to need. An overtime control system advises users when the relay is active too long, to help prevent overdosing.FeaturesEasy to handleFire retardant casingSelectable overdose protection systemSplash resistant coverIncludes mounting brackets, transparent cover, and instruction manual Manufacturer's Product Information MSRP each $195.95 Dimensions3 x 3.5 x 6 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-ph-controller-115v-p19244/|http://www.horticulturesource.com/images/HIBL981411-1.jpg|155.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Hanna Instruments|hf-HIPRIMO|19247|Primo TDS Tester|Hanna Instruments Primo TDS Tester (HIPRIMO)Primo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples.andnbsp;Each testerandnbsp;is ideally suited for the rigorous demands of water quality professionals. Many professionals use the cabled version of the Primo when demonstrating the before and after results of conditioning and filtration systems.Temperature is compensated automatically to ensure readings are consistent to the standard or reference temperature.Operating and routine maintenance has never been easier. Primo TDS uses a single button at the top of the meter. Press it once and the meter is powered and ready for use. Press and hold the button for a few seconds and Primo automatically enters calibration mode. Simply open a sachet of calibration solution, dip the probe in, and within seconds the meter recognizes the calibration solution and calibrates itself!FeaturesDirect probe connectionAutomatic calibrationAutomatic temperature compensationIncludes batteries and instructions Manufacturer's Product Information MSRP each $40.95 UPC812111010249 Dimensions8.5 x 1.5 x 5 Case Quantity1|http://www.horticulturesource.com/hanna-instruments-primo-tds-tester-p19247/|http://www.horticulturesource.com/images/HIPRIMO.jpg|36.9500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDAP1|19349|AquaPro TDS/Temperature Meter|HM Digital Meters AquaPro TDS/Temperature Meter (HMDAP1)FEATURESMeasures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Magnetic backIncludes a cap and batteries.andnbsp; Manufacturer's Product Information MSRP each $42.95 UPC891144000038 Dimensions1.3 x 3.3 x 1.3 Case Weight2 Case Quantity10|http://www.horticulturesource.com/hm-digital-aquapro-tds-temperature-meter-p19349/|http://www.horticulturesource.com/images/HMDAP1.jpg|29.2600|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDCOM100|19351|Waterproof EC/TDS/Temp Combo Meter|HM Digital Meters Waterproof EC/TDS/Temp Combo Meter (HMDCOM100)Measures EC, TDS and temperature. It has three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor, and Automatic Temperature Compensation (ATC) using three temperature coefficients. Measurement Range: 0-9990 uS; 0-8560 ppm (auto ranging). Manufacturer's Product Information MSRP each $76.95 UPC891144000229 Dimensions1.3 x 0.6 x 6 Case Quantity1|http://www.horticulturesource.com/hm-digital-waterproof-ec-tds-temp-combo-meter-p19351/|http://www.horticulturesource.com/images/HMDCOM100.jpg|50.5500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDCOM80|19352|EC/TDS/Temp Waterproof Hydro Tester|HM Digital Meters EC/TDS/Temp Waterproof Hydro Tester (HMDCOM80)andnbsp;andnbsp; KEY FEATURESBest value in its class (under $50)Measuresandnbsp;electrical conductivityandnbsp;(EC), TDS and temperature.Automatic Temperature Compensation (ATC)Water-resistant housingLarge LCD displayHold button and Auto shut-offDigital Calibration (push button) Low battery indicatorVery reliable and long lastingandnbsp;SPECIFICATIONSRange: 0-9999 andmicro;S / 0-5000PPMTemperature Range: 0-80 anddeg;C; 32-176 anddeg;FResolution: 1 andmu;S/ ppmandnbsp; Temp. resolution is 0.1 anddeg;C/FAccurate to +/- 2%Power source:andnbsp;1 x 3V button cell (included) (model 357A / LR44)Dimensions:andnbsp;15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)andnbsp;Weight:andnbsp;53.9 g (1.9 oz)andnbsp; Manufacturer's Product Information MSRP each $47.95 UPC891144000021 Dimensions3.3 x 8.5 x 2 Case Weight3 Case Quantity10|http://www.horticulturesource.com/hm-digital-ec-tds-temp-waterproof-hydro-tester-p19352/|http://www.horticulturesource.com/images/HMDCOM80.jpg|31.1900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDPH200|19353|Waterproof pH/Temperature Meter|HM Digital Meters Waterproof pH/Temperature Meter (HMDPH200)FEATURESMeasures pH and TemperatureAuto-ranging three point calibration with digital fine tuningIncludes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried upWaterproof housingSimultaneous temperature displayMeasurement Range: 0-14 pH Digital Calibration (push button)Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading.Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries, and lanyardSPECIFICATIONSpH Range: 0 - 14Temperature Range: 0-80 C; 32-176 FResolution: 0.01 pH; Temperature resolution is 0.1 C/FAccuracy: +/- 0.02 pHCalibration: Digital calibration by push button.Electrode: Replaceable glass sensor and reference tube electrodesHousing: Waterproof (submersible; floats)Power source: 3 x 1.5V button cell batteries (included)Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight without case: 96.4 g (3.4 oz) Manufacturer's Product Information MSRP each $99.95 UPC891144000175 Dimensions1.3 x 0.6 x 6 Case Weight2 Case Quantity4|http://www.horticulturesource.com/hm-digital-waterproof-ph-temperature-meter-p19353/|http://www.horticulturesource.com/images/HMDPH200.jpg|65.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDPHM80|19354|PH/Temperature Meter|HM Digital Meters PH/Temperature Meter (HMDPHM80)pH/temperature meter. Manufacturer's Product Information MSRP each $62.95 Dimensions2.25 x 2.25 x 3.75 Case Weight3 Case Quantity10|http://www.horticulturesource.com/hm-digital-ph-temperature-meter-p19354/|http://www.horticulturesource.com/images/HMDPHM80.jpg|41.5800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDSPC1|19355|Replacement Platinum Sensor COM-100|HM Digital Meters Replacement Platinum Sensor COM-100 (HMDSPC1)This spare sensor is for HM Digital EC/TDS/Temp Combo Meter model COM-100. Features platinum TDS/EC sensor and thermister. Manufacturer's Product Information MSRP each $36.95 Dimensions2.25 x 2.5 x 3.75 Case Quantity1|http://www.horticulturesource.com/hm-digital-replacement-platinum-sensor-com-100-p19355/|http://www.horticulturesource.com/images/HMDSPC1.jpg|24.3900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDSPP2|19356|Replacement pH Sensor PH-200|HM Digital Meters Replacement pH Sensor PH-200 (HMDSPP2)This spare pH sensor is for HM Digital Waterproof pH Meter model P-200. Features Glass pH sensor and reference tube and thermister. Manufacturer's Product Information MSRP each $49.95 Dimensions3 x 3 x 7 Case Quantity1|http://www.horticulturesource.com/hm-digital-replacement-ph-sensor-ph-200-p19356/|http://www.horticulturesource.com/images/HMDSPP2-n.jpg|32.9700|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HM Digital|hf-HMDTDS3|19357|TDS-3 Handheld TDS meter|HM Digital Meters TDS-3 Handheld TDS meter (HMDTDS3)Ideal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent and accurate due to its advanced microprocessor technology. It features a measurment range of 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking image. Manufacturer's Product Information MSRP each $37 UPC891144000113 Dimensions1 x 4 x 1 Case Weight3 Case Quantity10|http://www.horticulturesource.com/hm-digital-tds-3-handheld-tds-meter-p19357/|http://www.horticulturesource.com/images/HMDTDS3.jpg|19.7500|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|HydroFarm|hf-JLPT1|19877|TDS/Conductivity/Salinity Pocket Pen|TDS/Conductivity/Salinity Pocket Pen (JLPT1)This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorithms; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true, one-handed instrument, the PT1 is easy to calibrate and easy to use. To take a measurement, you simply press a button then dip the pen in solution. Results display in seconds.andbull; Accuracy of andplusmn;1% of READING andplusmn;.2% at calibration pointandbull; Reliable Repeatable Resultsandbull; Automatic temperature compensationandbull; Autorangingandbull; Accuracy of benchtop lab equipment in an affordable, portable, compact penandbull; Rugged, reliable, shock-resistant fully encapsulated electronics, body constructed of aircraftandnbsp;andnbsp; andnbsp; aluminumandbull; Simple one button functionandbull; Specially designed with measurement ranges and solution modes to meet the water quality andnbsp;andnbsp; testing needs of many applicationsandbull; High capacity N-type battery includedandbull; Waterproofandnbsp; Manufacturer's Product Information MSRP each $209.95 UPC638104100632 Dimensions3.7 x 2.2 x 32.2 Case Weight14 Case Quantity24|http://www.horticulturesource.com/hydrofarm-tds-conductivity-salinity-pocket-pen-p19877/|http://www.horticulturesource.com/images/JLPT1.jpg|145.5000|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|hf-LL01601|19954|Rapitest Soil Test Kit|Luster Leaf Rapitest Soil Test Kit (LL01601)40 tests: 10 each for pH, nitrogen, phosphorus and potash. Patented color comparator system. Manufacturer's Product Information MSRP each $17.95 UPC035307016126 Dimensions4.38 x 7.44 x 1.32 Case Weight2 Case Quantity6|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-soil-test-kit-p19954/|http://www.horticulturesource.com/images/LL01601.jpg|12.3300|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|hf-LL01612|19955|Rapitest pH Soil Tester|Luster Leaf Rapitest pH Soil Tester (LL01612)10 tests for pH, patented comparator test system. Manufacturer's Product Information MSRP each $5.45 UPC035307016256 Dimensions4.02 x 1.58 x 12.13 Case Weight2 Case Quantity12|http://www.horticulturesource.com/luster-leaf-products-inc-rapitest-ph-soil-tester-p19955/|http://www.horticulturesource.com/images/LL01612.jpg|4.7400|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|hf-LL01625|19956|Digital Soil Thermometer|Luster Leaf Digital Soil Thermometer (LL01625)Improve your seedling and transplanting results by planting at the safe and proper soil temperature. Readings in Fahrenheit. Manufacturer's Product Information MSRP each $14.45 UPC035307018250 Dimensions4 x 1.54 x 12.75 Case Weight3 Case Quantity6|http://www.horticulturesource.com/luster-leaf-products-inc-digital-soil-thermometer-p19956/|http://www.horticulturesource.com/images/LL01625.jpg|11.0800|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|hf-LL01825|19957|Digital Moisture Meter|Luster Leaf Digital Moisture Meter (LL01825)This sleek updated design offers an instant and easy to read digital format. It checks soil moisture where it counts: at root level. Monitoring a plant's soil moisture level helps prevent over and / or under watering. Batteries required and included. Manufacturer's Product Information MSRP each $11.95 UPC035307018359 Dimensions3.5 x 2.1 x 8.2 Case Weight3 Case Quantity12|http://www.horticulturesource.com/luster-leaf-products-inc-digital-moisture-meter-p19957/|http://www.horticulturesource.com/images/LL01825.jpg|9.4900|USD pH, EC & TDS Meters & Test Kits for Water & Soil, Timers, Instruments & Calibration Solutions > pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil|Luster Leaf Products, Inc.|hf-LL01835|19958|Rapitest Digital 3-Way Analyzer|Luster Leaf Rapitest Digital 3-Way Analyzer (LL01835)This digital 3-way soil analyzer will help you get the proper readings for pH, fertility and temperature. Gardener's, enjoy using meters as an easy and convenient method to check your soil for these readings and with just a couple touches to the digital analyzer you will have your information for optimal plant growth. This