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Active Air 2-Way Moisture/pH Meter
Gardeners can conveniently test moisture and pH levels with the handy Active Air 2-Way Meter. Moisture readings register on a ...
$6.49
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Active Air 3-Way Meter
Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3-Way Meter. Moisture readings register ...
$7.57
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Active Aqua Hydroponic pH Test Kit
(Wide Spectrum) Measures 3-10 pH. The Hydroponic pH test kit is good for 150 tests. At the rate of 3 tests ...
$3.82
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Autopilot Digital pH Controller
The Autopilot Digital pH Controller (APCEPH1) accurately and reliably measures and controls the pH of any water-based solution, including hydroponic ...
$290.15
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Cutting Edge Solutions pH Down, 1 gal, case of 4
CES pH Down™Concentrated pH adjustment liquid, acidic buffer lowers water and nutrient solution pH. Highly concentrated, use conservatively. Slowly add to ...
$73.96
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Cutting Edge Solutions pH Down, 1 qt, case of 12
Size: 1 qt
$90.01
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Cutting Edge Solutions pH Up, 1 gal, case of 4
CES pH Up™Concentrated pH adjustment liquid, alkaline buffer raises water and nutrient solution pH. Highly concentrated, use conservatively. Slowly add ...
$73.96
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Cutting Edge Solutions pH Up, 1 qt, case of 12
Size: 1 qt
$90.01
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Dyna-Gro pH-Down 1-5-0, 1 qt
pH-Down 1-5-0 is a Dyna-Gro product used to lower the pH of water.What is pH? pH is a measure of acidity ...
$10.89
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GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
GroStar by Apera EC Calibration Kit (2.77 EC, 8 oz. each) • 2.77 EC conductivity standard calibration solution• Used as a reference or ...
$10.36
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GroStar GS1 pH Pen
AI11010 - GroStar GS1 pH PenLab grade instruments designed specifically for growers!Includes: • 2-year warranty (instrument)• 1-year warranty (probe)• pH 7 ...
$83.97
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GroStar GS1-E replacement pH electrode
AI58010 - GroStar GS1-E replacement pH electrode • Replacement GS1 probe measures pH and temperature• Premium probe technologies and materials ensure high accuracy ...
$35.29
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GroStar GS2 Soil pH Pen
AI31020 - GroStar GS2 Soil pH PenLab grade instruments designed specifically for growers!Includes: • 2-year warranty (instrument)• 1-year warranty (probe)• pH ...
$177.87
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GroStar GS2-E replacement Soil Spear pH electrode
AI58020 - GroStar GS2-E replacement Soil Spear pH electrode • Spear pH Probe measures pH and temperature in nutrient solution, soil, coco ...
$125.96
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GroStar GS3 EC Pen
AI11030 - GroStar GS3 EC/PPM/Temp PenLab grade instruments designed specifically for growers!Includes: • 2-year warranty (instrument)• 1-year warranty (probe)• 2.77 EC ...
$78.89
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GroStar GS3-E replacement EC electrode
AI58030 - GroStar GS3-E replacement EC electrode • Measures conductivity EC, PPM (500), PPM (700) and temperature• Premium probe technologies and materials ensure ...
$37.36
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GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo PenLab grade instruments designed specifically for growers!Includes: • 2-year warranty (instrument)• 1-year ...
$123.88
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GroStar GS4-E replacement pH/EC combo electrode
AI58040 - GroStar GS4-E replacement pH/EC combo electrode • Measures pH, conductivity (EC and PPM) and temperature• Combo probe built with lithium glass ...
$55.35
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GroStar pH calibration kit (pH 4/7, 8 oz. each)
GroStar by Apera pH calibration kit (pH 4/7, 8 oz. each) Kit includes: (1) 8 oz. pH 4.0 calibration solution (1) 8 ...
$13.13
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GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
GroStar by Apera pH calibration kit (pH 4/7/10, 8 oz. each) Kit Includes: (1) pH 4.0 calibration solution 8 oz. (1) pH 7.0 ...
$20.05
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GroStar pH Probe Maintanence Kit
All-in-one maintanence kit provides everything you need to maintain, clean and store your GroStar pH probe Kit Includes: 3M KCL storage solution (4oz.) Cleaning solution ...
$16.59
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HM Digital Replacement pH Sensor Probe for HM-500
HM-500 Replacement pH probe2 Meter / 80 inch cable lengthIncludes pH storage solution, 6-month warranty
$41.51
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HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.
$6.56
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HM Digital AquaPro TDS/Temperature Meter
FEATURES Measures total dissolved solids (TDS) and temperature Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ...
$24.74
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HM Digital COM-100 Waterproof EC/TDS/Temp Combo Meter
Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, ...
$53.00
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HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & ...
$29.73
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HM Digital HydroMaster HM-100 Continuous pH/EC/TDS/Temp Monitor
The HM Digital HydroMaster HM100 conveys 3 critical parameters for successful gardening. The HM100 is a versatile continuous monitor that ...
$196.08
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HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
HydroMaster Digital testers make monitoring water easier than ever by reading the levels that matter most and providing accurate readings ...
$248.02
