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Water Quality Products

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GX-E2 pH Electrode + 3m Cable + BNC Type Plug

GX - E2 pH Electrode + 3m Cable + BNC Type Plug - Gain Express GX - E2 pH Electrode + 3m Cable + BNC Type Plug - Gain Express

GX-E2 pH Electrode + 3m Cable + BNC Type Plug

$28.90 USD

GX-E1 Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions

GX - E1 GX - E1 Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions - Gain Express GX - E1 GX - E1 Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions - Gain Express

GX-E1 Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions

ECS-23852 0.4 - 4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick

Gain Express ECS-23852 0.4 - 4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick Gain Express ECS-23852 0.4 - 4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick

ECS-23852 0.4 - 4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick

$43.90 USD

EC-1385 3-in-1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic, Laboratories, Environmental Monitoring Test Tool Kit

EC - 1385 EC - 1385 3 - in - 1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic, Laboratories, Environmental Monitoring Test Tool Kit - Gain Express EC - 1385 EC - 1385 3 - in - 1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic, Laboratories, Environmental Monitoring Test Tool Kit - Gain Express

EC-1385 3-in-1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic, Laboratories, Environmental Monitoring Test Tool Kit

EC-1383 Pen Type EC / Hydroponics / Nutrient Meter (0~19.99ms/cm)

EC - 1383 EC - 1383 Pen Type EC / Hydroponics / Nutrient Meter (0~19.99ms/cm) - Gain Express EC - 1383 EC - 1383 Pen Type EC / Hydroponics / Nutrient Meter (0~19.99ms/cm) - Gain Express

EC-1383 Pen Type EC / Hydroponics / Nutrient Meter (0~19.99ms/cm)

E-2627 PH Probe with BNC Connector, 150cm Long Cable 0-14pH Test Sensor Electrode for PH Meter Monitor Controller, Replacement Kit for Aquarium Hydroponics Plant Pool Spa

E - 2627 E - 2627 PH Probe with BNC Connector, 150cm Long Cable 0 - 14pH Test Sensor Electrode for PH Meter Monitor Controller, Replacement Kit for Aquarium Hydroponics Plant Pool Spa - Gain Express E - 2627 E - 2627 PH Probe with BNC Connector, 150cm Long Cable 0 - 14pH Test Sensor Electrode for PH Meter Monitor Controller, Replacement Kit for Aquarium Hydroponics Plant Pool Spa - Gain Express

E-2627 PH Probe with BNC Connector, 150cm Long Cable 0-14pH Test Sensor Electrode for PH Meter Monitor Controller, Replacement Kit for Aquarium Hydroponics Plant Pool Spa

E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa

E - 1325M E - 1325M 0 - 14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa - Gain Express E - 1325M E - 1325M 0 - 14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa - Gain Express

E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa

$28.90 USD

869-0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device

869 - 0 869 - 0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device - Gain Express 869 - 0 869 - 0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device - Gain Express

869-0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device

868-9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design

868 - 9 868 - 9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design - Gain Express 868 - 9 868 - 9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design - Gain Express

868-9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design

8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement

8403 8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement - Gain Express 8403 8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement - Gain Express

8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement

$212.90 USD

837-1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing

837 - 1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing - Gain Express 837 - 1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing - Gain Express

837-1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing

836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC

836 - 1 836 - 1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC - Gain Express 836 - 1 836 - 1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC - Gain Express

836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC

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