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Water Quality Products

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WQM-242 5-in-1 Water Quality Multi-parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall-mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking

WQM - 242 5 - in - 1 Water Quality Multi - parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall - mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking - Gain Express WQM - 242 5 - in - 1 Water Quality Multi - parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall - mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking - Gain Express

WQM-242 5-in-1 Water Quality Multi-parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall-mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking

ORP-235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank

ORP - 235 ORP - 235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank - Gain Express ORP - 235 ORP - 235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank - Gain Express

ORP-235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank

PHM-234 3-in-1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5" Large Dual Display, Water Quality Meter Tester for Aquaculture, Aquarium, Pond, Hydroponics

PHM - 234 PHM - 234 3 - in - 1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5 PHM - 234 PHM - 234 3 - in - 1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5

PHM-234 3-in-1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5" Large Dual Display, Water Quality Meter Tester for Aquaculture, Aquarium, Pond, Hydroponics

TDS-232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real-time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics

TDS - 232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real - time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics - Gain Express TDS - 232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real - time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics - Gain Express

TDS-232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real-time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics

PHM-230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa

PHM - 230 PHM - 230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa - Gain Express PHM - 230 PHM - 230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa - Gain Express

PHM-230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa

PHM-229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics

PHM - 229 PHM - 229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics - Gain Express PHM - 229 PHM - 229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics - Gain Express

PHM-229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics

ECM-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics

ECM - 231_EU ECM - 231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real - time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics - Gain Express ECM - 231_EU ECM - 231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real - time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics - Gain Express

ECM-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics

PHM-226 3-in-1 pH Temperature Conductivity EC Meter Tester Digital Pen-Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa

PHM - 226 PHM - 226 3 - in - 1 pH Temperature Conductivity EC Meter Tester Digital Pen - Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa - Gain Express PHM - 226 PHM - 226 3 - in - 1 pH Temperature Conductivity EC Meter Tester Digital Pen - Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa - Gain Express

PHM-226 3-in-1 pH Temperature Conductivity EC Meter Tester Digital Pen-Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa

PHM-237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium

PHM - 237 PHM - 237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium - Gain Express PHM - 237 PHM - 237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium - Gain Express

PHM-237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium

PHM-224 PH ORP Temperature 3-in-1 Combo Meter Tester Pen Type with Automatic Temperature Compensation

Phm-224 Ph Orp Temperature 3-In-1 Combo Meter Tester Pen Type With Automatic Compensation Water Phm-224 Ph Orp Temperature 3-In-1 Combo Meter Tester Pen Type With Automatic Compensation Water

PHM-224 PH ORP Temperature 3-in-1 Combo Meter Tester Pen Type with Automatic Temperature Compensation

$72.90 USD

PH-035 Waterproof Digital pH and Temperature Meter °C / °F 0.00~14.00 pH Range with 2-Liner Display

Ph-035 Waterproof Digital Ph And Temperature Meter °C / °F 0.00~14.00 Range With 2-Liner Display Ph-035 Waterproof Digital Ph And Temperature Meter °C / °F 0.00~14.00 Range With 2-Liner Display
-10%

PH-035 Waterproof Digital pH and Temperature Meter °C / °F 0.00~14.00 pH Range with 2-Liner Display

PHM-205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi-Parameter

PHM - 205 PHM - 205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi - Parameter - Gain Express PHM - 205 PHM - 205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi - Parameter - Gain Express

PHM-205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi-Parameter

PHT-026 6-in-1 Multi-Function Meter Tester EC CF TDS PH °C °F

PHT - 026 PHT - 026 6 - in - 1 Multi - Function Meter Tester EC CF TDS PH °C °F - Gain Express PHT - 026 PHT - 026 6 - in - 1 Multi - Function Meter Tester EC CF TDS PH °C °F - Gain Express

PHT-026 6-in-1 Multi-Function Meter Tester EC CF TDS PH °C °F

PHM-203 Chlorine Tester, PH & Chlorine Cl2 Level Meter Tester Test Monitor Swimming Pool Spa Water monitor Quality Analysis

PHM - 203 Chlorine Tester, PH & Chlorine Cl2 Level Meter Tester Test Monitor Swimming Pool Spa Water monitor Quality Analysis - Gain Express PHM - 203 Chlorine Tester, PH & Chlorine Cl2 Level Meter Tester Test Monitor Swimming Pool Spa Water monitor Quality Analysis - Gain Express

PHM-203 Chlorine Tester, PH & Chlorine Cl2 Level Meter Tester Test Monitor Swimming Pool Spa Water monitor Quality Analysis

$46.90 USD

PH869-2 Pen type 12cm Probe pH Temperature Digital Meter 14.00 pH Pool Aquarium Water Quality Tester

PH869 - 2 PH869 - 2 Pen type 12cm Probe pH Temperature Digital Meter 14.00 pH Pool Aquarium Water Quality Tester - Gain Express PH869 - 2 PH869 - 2 Pen type 12cm Probe pH Temperature Digital Meter 14.00 pH Pool Aquarium Water Quality Tester - Gain Express

PH869-2 Pen type 12cm Probe pH Temperature Digital Meter 14.00 pH Pool Aquarium Water Quality Tester

PH-001 Pen-type PH Meter Digital Water Quality Tester, 0~14pH for Hydroponics Aquarium Pool Wine Cola Urine Water Tank with Clear LCD with Backlight Function, Portable Pocket Size

Ph-001 Pen-Type Ph Meter Digital Water Quality Tester 0~14Ph For Hydroponics Aquarium Pool Wine Cola Ph-001 Pen-Type Ph Meter Digital Water Quality Tester 0~14Ph For Hydroponics Aquarium Pool Wine Cola

PH-001 Pen-type PH Meter Digital Water Quality Tester, 0~14pH for Hydroponics Aquarium Pool Wine Cola Urine Water Tank with Clear LCD with Backlight Function, Portable Pocket Size

M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature

M0199720 M0199720 6 - in - 1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature - Gain Express M0199720 M0199720 6 - in - 1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature - Gain Express

M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature

$136.90 USD

PHT-027 7-in-1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C

PHT - 027 PHT - 027 7 - in - 1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C - Gain Express PHT - 027 PHT - 027 7 - in - 1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C - Gain Express

PHT-027 7-in-1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C

PHS-3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick

PHS - 3385 PHS - 3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick - Gain Express PHS - 3385 PHS - 3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick - Gain Express

PHS-3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick

868-5 Waterproof pH meter with Temperature + Auto Calibration

868 - 5 868 - 5 Waterproof pH meter with Temperature + Auto Calibration - Gain Express 868 - 5 868 - 5 Waterproof pH meter with Temperature + Auto Calibration - Gain Express

868-5 Waterproof pH meter with Temperature + Auto Calibration

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