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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 ...
$7.17
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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 ...
$7.98
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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 ...
$81.36
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Cutting Edge Solutions pH Down, 1 qt, case of 12
Size: 1 qt
$99.01
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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 ...
$81.36
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Cutting Edge Solutions pH Up, 1 qt, case of 12
Size: 1 qt
$99.01
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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 ...
$6.53
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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 ...
$10.37
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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 ...
$78.90
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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 ...
$37.37
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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 ...
$123.89
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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 ...
$55.36
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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 ...
$13.14
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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 ...
$20.06
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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 ...
$16.60
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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
$41.52
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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.
$7.88
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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 & ...
$32.70
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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
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HM Digital Hydromaster Replacement EC/TDS Probe
The HM Digital Hydromaster EC/TDS Probe is a replacement part for the HydroMaster HM-500.
$34.60
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HM Digital PH-80 pH/Temperature Meter
The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, ...
$32.21
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HM Digital PH-STOR pH Electrode Storage Solution
For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure your ...
$7.02
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HM Digital TDS-3 Handheld TDS meter
Ideal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent and accurate due ...
$30.22
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Mad Farmer pH Control Kit, Case of 12
A consistent pH is one of the most important elements in maintaining a healthy garden. Make sure your plants work ...
$117.67
