Meters and Testers

28 products

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Growing Essentials Prestige PH Meter side profileGrowing Essentials Prestige PH Meter top view
Sale price$19.99 Regular price$119.95
Prestige PH Meter
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Growing Essentials Prestige PPM Meter top viewGrowing Essentials Prestige PPM Meter bottom view
Sale price$19.95 Regular price$129.95
Prestige PPM Meter
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Growing Essentials Yield Lab Digital Thermo-Hygrometer with packagingGrowing Essentials Yield Lab Digital Thermo-Hygrometer side profile
Sale price$12.95 Regular price$19.95
Yield Lab Digital Thermo-Hygrometer
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X Nutrients pH Up/Down Set (1 Quart each) front viewHow to Calibrate PH Meters
Sale price$19.95 Regular price$29.95
X Nutrients pH Up/Down Set (1 Quart each)
Horticulture Grow Meter Photobio Advanced Quantum PAR Meter MainHorticulture Grow Meter Photobio Advanced Quantum PAR Meter Box
Sale price$147.99
Photobio Advanced Quantum PAR Meter
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Growing Essentials Hydrologic DM-2 Industrial Dual TDS Monitor
Sale price$75 Regular price$95
Hydrologic DM-2 Industrial Dual TDS Monitor
Growing Essentials Horticulture Grow1 Temp and Humidity Hygrometer Main
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Growing Essentials Autopilot Digital CO2 Controller Fuzzy Logic Replacement Probe
Sale price$252.48 Regular price$316.95
Autopilot Digital CO2 Controller Fuzzy Logic Replacement Probe
Growing Essentials Bluelab Meter Carry Case with case openGrowing Essentials Bluelab Meter Carry Case top view
Sale price$26
Bluelab Meter Carry Case
Growing Essentials EZI Tester pH Pen front
Sale price$29.95
EZI Tester pH Pen
Growing Essentials Bluelab pH Up, 1 gal Bottle, case of 4 front of bottle
Sale price$189.95
Bluelab pH Up, 1 gal Bottle, case of 4
Growing Essentials EZI Tester EC Pen front
Sale price$39.95
EZI Tester EC Pen
Growing Essentials Infrared Thermometer -25 to 600 Degrees Fahrenheit side profile
Save $21.59
Growing Essentials Hanna GroChek EC Tester side profile
Sale price$94.36 Regular price$115.95
Hanna GroChek EC Tester
Growing Essentials Bluelab pH Up, 1 Liter Bottle, case of 12 front of bottle
Sale price$203.95
Bluelab pH Up, 1 Liter Bottle, case of 12
Growing Essentials EP Large Screen Thermo/Hygrometer front
Sale price$29.95
EP Large Screen Thermo/Hygrometer
Save $159.72
Growing Essentials Hanna Portable pH Meter with SMART Electrode front of screen
Sale price$487.23 Regular price$646.95
Hanna Portable pH Meter with SMART Electrode
Save $51.45
Sale price$213.54 Regular price$264.99
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Multifunction 6-in-1 Water Tester display with featuresMultifunction 6-in-1 Water Tester diagram
Sale price$159.95 Regular price$398
Multifunction 6-in-1 Water Tester
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Growing Essentials Sh-101 Digital Thermo-Hygrometer frontGrowing Essentials Sh-101 Digital Thermo-Hygrometer side
Sale price$19.95 Regular price$29.95
Sh-101 Digital Thermo-Hygrometer
Growing Essentials FlairForm pH Test Kit front and back
Sale price$8.95
FlairForm pH Test Kit
Growing Essentials HM Digital EC TDS Temp Pen front
Sale price$38.95
HM Digital EC TDS Temp Pen
Growing Essentials HM Digital Handheld TDS Temp Meter with Case frontGrowing Essentials HM Digital Handheld TDS Temp Meter with Case front