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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 241 to 260 (of 342 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
 Sort by Popularity-   Manufacturer   Product(s)   Model   Price   Buy Now 
 Dosatron Mini Seal Kit for Water Powered Doser 11 GPM 1:1000 to 1:112      Dosatron Mini Seal Kit for Water Powered Doser 11 GPM 1:1000 to 1:112 
Mini-maintenance seal kit for D25RE09 VF - should be replaced on an annual basis if unit is used on a regular basis all year.... — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 709024   $39.90 
 Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N)   Hanna Instruments   Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) 
Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) (eco-5422C)GroChek pH & TDS Combo Continuous Reading Meter Displays pH & EC Simultaneously Adjustable Setpoints Space Efficient Hanna Dual Grochek The HI 981404N is ideal for hydroponic applications where pH and TDS levels need to be continuously monitored. These wall mount monitors feature a larg... — Ships from Seattle, Washington USA...more info.
 eco-5422C   $153.15 
 FH NUTRADIP CMS pH METER   FHD (Future Harvest Development)   FH NUTRADIP CMS pH METER 
Nutradip® CMS pH METER NUTRADRIP CMS PH METER (20/CASE) The Nutradipˊ 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. Ma... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716325   $91.14 
 Future Harvest Nutradip Nutrient Meter EC Dual Power AC DC   FHD (Future Harvest Development)   Future Harvest Nutradip Nutrient Meter EC Dual Power AC DC 
Nutradip Nutrient MeterNutradip® Nutrient Meters are the reliable way to measure the strength of your gardens nutrient supply. It is a continuous monitoring meter with automatic temperature compensation and dc power built in for portability. Lightweight, portable and splash resistant. Wall mount or hand held -AC & DC powered. Easy to read plant... — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716355   $85.11 
 HANNA GROCHEK®  pH 7.01 CALIBRATION SOLUNTION - 20 ML (CASE of 25) MODEL # HI 70007P (FULL CASE QUANTITIES ONLY)   Hanna Instruments   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/CS MSRP: $1.29 each packet... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716876   $23.94 
 REPLACEMENT ELECTRODE REPLACEMENT FOR OAKTON ULTRA BASIC WATERPROOF pH TESTER (35624-09)   Oakton   REPLACEMENT ELECTRODE REPLACEMENT FOR OAKTON ULTRA BASIC WATERPROOF pH TESTER (35624-09) 
Oakton® Ultra Basic pHTestr® ELECTRODE REP. FOR PH 1 & 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 Man... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716047   $72.11 
 Replacement probe for CalCheck Meter (HI1285-6)   Hanna Instruments   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.... — Ships from Seattle, Washington USA...more info.
 eco-5528D   $105.05 
 24-7 Nutrient Monitor Replacement PPM Probe   Control Wizard   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 co... — Ships from Portland, Oregon USA...more info.
 CW506   $36.30 
 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   $110.83 
 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   $4.56 
 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 Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716900   $9.01 
 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   $36.30 
 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   $55.39 
 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   $45.70 
 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   $18.13 
 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 Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716192   $75.24 
 Dosatron In-Line Filter Kit w/ Unions - 3/4 in (200 Mesh / 80 Micron)      Dosatron In-Line Filter Kit w/ Unions - 3/4 in (200 Mesh / 80 Micron) 
Inline filter kit includes a cleanable, permanent, stainless steel filter that is a 200 mesh/80 micron. The inline connecters are 3/4 in FPT by 3/4 in FPT. No replacement cartridges necessary.... — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 709016   $29.64 
 Hanna pH Checker Kit - HI 98103H   Hanna Instruments   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).... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5524A   $34.18 
 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   $117.89 
 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 Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA...more info.
 716021   $58.08 
Displaying 241 to 260 (of 342 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
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6 Outlet Air Manifold
I emailed and asked what size tubing this took. I was told i ..
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VORTEX 12" MOUNTING BRACKET
VORTEX 12" MOUNTING BRACKET
$11.40
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