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Water Quality Products

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WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools

WQM - 354 Water Quality Tester 4 - in - 1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools - Gain Express WQM - 354 Water Quality Tester 4 - in - 1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools - Gain Express

WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools

PH-303 2-in-1 Digital pH & ORP Controller + Electrodes Industrial Type

PH - 303 2 - in - 1 Digital pH & ORP Controller + Electrodes Industrial Type - Gain Express PH - 303 2 - in - 1 Digital pH & ORP Controller + Electrodes Industrial Type - Gain Express

PH-303 2-in-1 Digital pH & ORP Controller + Electrodes Industrial Type

Calibration Solution (SOL-12.88EC / SOL-PH6.864 / SOL-PH4.003)

SOL - 12.88EC_PH6.864_PH4.003 Calibration Solution (SOL - 12.88EC / SOL - PH6.864 / SOL - PH4.003) - Gain Express

Calibration Solution (SOL-12.88EC / SOL-PH6.864 / SOL-PH4.003)

ECM-302 Pentype 2-in-1 TDS / EC Meter with ATC Digital Water Quality Tester Temperature Measurement for Water Analysis Hydroponics Aquaculture

ECM - 302 ECM - 302 Pentype 2 - in - 1 TDS / EC Meter with ATC Digital Water Quality Tester Temperature Measurement for Water Analysis Hydroponics Aquaculture - Gain Express ECM - 302 ECM - 302 Pentype 2 - in - 1 TDS / EC Meter with ATC Digital Water Quality Tester Temperature Measurement for Water Analysis Hydroponics Aquaculture - Gain Express

ECM-302 Pentype 2-in-1 TDS / EC Meter with ATC Digital Water Quality Tester Temperature Measurement for Water Analysis Hydroponics Aquaculture

PHM-300 Digital Pen type pH Meter Water Quality Liquid Acidity Tester 0.01pH Accuracy for Laboratory, Household Water, Spa, Pool Aquarium

PHM - 300 Digital Pen type pH Meter Water Quality Liquid Acidity Tester 0.01pH Accuracy for Laboratory, Household Water, Spa, Pool Aquarium - Gain Express PHM - 300 Digital Pen type pH Meter Water Quality Liquid Acidity Tester 0.01pH Accuracy for Laboratory, Household Water, Spa, Pool Aquarium - Gain Express

PHM-300 Digital Pen type pH Meter Water Quality Liquid Acidity Tester 0.01pH Accuracy for Laboratory, Household Water, Spa, Pool Aquarium

SA-1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester

SA - 1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester - Gain Express SA - 1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester - Gain Express

SA-1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester

3081 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester

3081 3081 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester - Gain Express 3081 3081 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester - Gain Express

3081 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester

3080 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester

3080 3080 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester - Gain Express 3080 3080 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester - Gain Express

3080 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester

8012 Digital Pen type Salinity Meter Salinometer Salt Analyzer

8012 Digital Pen type Salinity Meter Salinometer Salt Analyzer - Gain Express 8012 Digital Pen type Salinity Meter Salinometer Salt Analyzer - Gain Express

8012 Digital Pen type Salinity Meter Salinometer Salt Analyzer

ECM-226 3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa

ECM - 226 ECM - 226 3 - in - 1 Conductivity EC & pH & Temperature Meter Multi - parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa - Gain Express ECM - 226 ECM - 226 3 - in - 1 Conductivity EC & pH & Temperature Meter Multi - parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa - Gain Express

ECM-226 3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa

TDS-240 3-in-1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen-Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa

TDS - 240 3 - in - 1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen - Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa - Gain Express TDS - 240 3 - in - 1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen - Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa - Gain Express

TDS-240 3-in-1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen-Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa

PH-014 Pocket Size 0.0-14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics

PH - 014_BLK PH - 014 Pocket Size 0.0 - 14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics - Gain Express PH - 014_BLUE PH - 014 Pocket Size 0.0 - 14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics - Gain Express

PH-014 Pocket Size 0.0-14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics

837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95-1.08 SG Measurement Units 3-in-1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater

837 - 2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95 - 1.08 SG Measurement Units 3 - in - 1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater - Gain Express 837 - 2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95 - 1.08 SG Measurement Units 3 - in - 1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater - Gain Express

837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95-1.08 SG Measurement Units 3-in-1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater

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

PHM-233 6 in 1 Professional Multi-parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi-function Water Quality Monitor Tester

PHM - 233 PHM - 233 6 in 1 Professional Multi - parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi - function Water Quality Monitor Tester - Gain Express PHM - 233 PHM - 233 6 in 1 Professional Multi - parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi - function Water Quality Monitor Tester - Gain Express

PHM-233 6 in 1 Professional Multi-parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi-function Water Quality Monitor Tester

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-227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems

ECM - 227 ECM - 227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems - Gain Express ECM - 227 ECM - 227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems - Gain Express

ECM-227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems

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