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Meters, Timers & Instruments: pH, EC, PPM & TDS Testers: pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil

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Displaying 141 to 160 (of 311 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [Next >>] 
 Sort by Popularity-   Manufacturer   Product(s)   Model   Price   Buy Now 
 DiST 5 Waterproof Meter.   Hanna Instruments   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.... — Ships from Portland, Oregon USA....more info.
 HY1742   $112.08 
 pH Replacement Electrode for HI98103, HI9910 (Special Order)   Hanna Instruments   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... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-HI1270   $24.09 
 pH Test Kit 1 oz.   General Hydroponics   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 strips SKU: GH1515 Weight: 1.0 lbs. Package Dimensions: 5.5L x 2.6W x 1.0H Suggested Retail: $7.54 Manufacturer's Product Information MSRP $7.54 ... — Ships from Seattle, Washington USA....more info.
 eco-5517   $4.40 
 pH Tester With 1 Point Manual Calibration   Milwaukee Instruments   pH Tester With 1 Point Manual Calibration 
Milwaukee Instruments pH Tester With 1 Point Manual Calibration (MIPH600)Milwaukee's economical tester is an easy-to-use, low cost instruments to measure quick and reliable pH, EC or TDS values.  Measuring electrical conductivity is the best way of checking the amount of salt or dissolved solids (TDS) in water. Milwaukee provides you with a range of pocket... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MIPH600   $24.30 
 Rapitest Digital Moisture Meter   Luster Leaf Products, Inc.   Rapitest Digital Moisture Meter 
Rapitest Digital Moisture Meter Rapitest Digital Moisture Meter tests for moisture at the roots - where it matters - you no longer risk over watering a healthy plant just because the soil near the surface is dry or under-watering because it appears moist. Ideal for houseplants, window boxes, patio tubs and hanging baskets. Instant digital read-out. Checks soi... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716900   $8.82 
 Replacement pH Electrode for 24-7 Nutrient Monitor.   Hanna Instruments   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. ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 CW505   $35.04 
 Replacement pH Sensor PH-200   HM Digital   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 Dimens... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-HMDSPP2   $33.45 
 Replacement Probe for GroChek.   Hanna Instruments   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.... — Ships from Portland, Oregon USA....more info.
 HY1801   $51.35 
 Replacement probe for pHep 5 (HI 73127)   Hanna Instruments   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 ... — Ships from Seattle, Washington USA....more info.
 eco-5522D   $44.12 
 Soil Test Kit.   Luster Leaf Products, Inc.   Soil Test Kit. 
Rapitest Garden Soil Test Kit. 4 Separate Tests (pH, Nitrogen, Phosphorus, Potassium)... — Ships from Portland, Oregon USA....more info.
 MI429   $17.27 
 Bluelab Connect Stick   Bluelab   Bluelab Connect Stick 
Get connected - data log and view nutrient measurements from your crop wirelessly. The Bluelab Connect Stick receives wireless data from Bluelab Connect Monitors or Controllers, logging the data to the cloud. One Connect Stick will receive data from multiple Bluelab Connect Devices. Simply place the Connect Stick into a USB port on your computer, download and install the free Con... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-BLU8002   $100.44 
 BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY)   Bluelab   BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY) 
For BlueLab Soil pH Meter SOIL 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 i... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716192   $73.66  $68.64 
 Commercial Grade Combo pH/EC/TDS/Temp Meter (SPECIAL ORDER)      Commercial Grade Combo pH/EC/TDS/Temp Meter (SPECIAL ORDER) 
Martini Instruments Commercial Grade Combo pH/EC/TDS/Temp Meter (MI805) (SPECIAL ORDER) Multi-range pH/EC/TDS and Temperature meter - 4-in-1 pH/EC/TDS/Temperature probe - The rugged MA851D/1 probe has been designed for heavy-duty applications (agriculture, industrial, etc.)RANGE:0.00 - 14.00 pH 0 - 3999 µS/cm 0 - 1999 ppm 0.0 - 60.0°C 32.0 - 140.0°... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MI805   $369.61 
 Digital Moisture Meter   Luster Leaf Products, Inc.   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 ... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-LL01825   $9.63 
 Dosatron Flow Restrictor - 3/4 in 10 GPM - D25 Series      Dosatron Flow Restrictor - 3/4 in 10 GPM - D25 Series 
Flow Restrictors limit the flow of liquid in the line. It is recommended to install a flow restrictor on the inlet side of the Dosatron unit if there is any possibility of overflowing the unit. Choose from 3/4 in 10 GPM or 3/4 in 14 GPM.... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 709020   $43.52 
 Double Junction PH Probe for MW100   Milwaukee Instruments   Double Junction PH Probe for MW100 
Milwaukee Instruments Double Junction PH Probe for MW100 (MISE220)Double junction pH electrode with 1 meter ccable and gel filled electrolyte solution for all "MW" and old style "SM" pH units.**Note: This probe replaces the old MA911B/1 Manufacturer's Product Information ... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MISE220   $42.84 
 HI1285-6 Replacement Probe.      HI1285-6 Replacement Probe. 
HI1285-6 Replacement Probe for NEW HI9813-6 (HY1743)... — Ships from Portland, Oregon USA....more info.
 HY1771   $120.46 
 HortiCare Nutrient Check PPM   Trans Instruments   HortiCare Nutrient Check PPM 
HortiCare Nutrient Check PPM (716021)HortiCare Nutrient Check PPM The 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 p... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716021   $56.86 
 MI SMS410 TDS MONITOR (1/CASE)   Milwaukee Instruments   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 p... Note: Calibration Buffer Solutions are available separately. This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716650   $62.94 
 OAKTON MULTI PTTESTER 35 (PH/TDS/TEMP)   Oakton   OAKTON MULTI PTTESTER 35 (PH/TDS/TEMP) 
Oakton® MULTI PT Testr 35 One 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 chem... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716108   $137.75 
Displaying 141 to 160 (of 311 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [Next >>] 
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