Meters and Testers

27 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
Save $7
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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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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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)
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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
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
Growing Essentials FlairForm pH Test Kit front and back
Sale price$8.95
FlairForm pH Test Kit
Growing Essentials Horticulture Grow1 Temp and Humidity Hygrometer Main
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
Growing Essentials HM Digital pH Pen Meter front
Sale price$56.95
HM Digital pH Pen Meter
Save $64.47
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 HM Digital Waterproof pH Temp Meter front
Sale price$119.95
HM Digital Waterproof pH Temp Meter
Growing Essentials Hanna pH 4.01 Calibration Solution, 16 oz front of bottles
Sale price$26.88
Hanna pH 4.01 Calibration Solution, 16 oz
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 HM Digital EC TDS Temp Combo Meter front
Sale price$74.95
HM Digital EC TDS Temp Combo Meter
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
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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
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