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Optional Accessories

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WQM-527 Smart WIFI Water Quality Monitor Multi-Parameter Aquarium Monitor pH, Temperature, TDS, EC (Conductivity), Salinity, S.G, and ORP for Hydroponics, Aquarium, Fish Tank, Aquaculture

WQM 527 Smart WIFI Water Quality Monitor Multi Parameter Aquarium Monitor pH Temperature TDS EC (Conductivity) Salinity WQM 527 Smart WIFI Water Quality Monitor Multi Parameter Aquarium Monitor pH Temperature TDS EC (Conductivity) Salinity

WQM-527 Smart WIFI Water Quality Monitor Multi-Parameter Aquarium Monitor pH, Temperature, TDS, EC (Conductivity), Salinity, S.G, and ORP for Hydroponics, Aquarium, Fish Tank, Aquaculture

$82.90 USD

E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa

E - 367 E - 367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa - Gain Express E - 367 E - 367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa - Gain Express

E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa

$24.90 USD

E-366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller -2000~2000mV Measure with 200cm Long Cable

E - 366 E - 366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller - 2000~2000mV Measure with 200cm Long Cable - Gain Express E - 366 E - 366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller - 2000~2000mV Measure with 200cm Long Cable - Gain Express

E-366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller -2000~2000mV Measure with 200cm Long Cable

$28.90 USD

E-314 Replacement pH Electrode with Calibration Powder, 0-14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement

E - 314 E - 314 Replacement pH Electrode with Calibration Powder, 0 - 14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement - Gain Express E - 314 E - 314 Replacement pH Electrode with Calibration Powder, 0 - 14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement - Gain Express

E-314 Replacement pH Electrode with Calibration Powder, 0-14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement

$30.90 USD

E-313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain

E - 313 E - 313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain - Gain Express E - 313 E - 313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain - Gain Express

E-313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain

E-312 High Accuracy pH Electrode with Calibration Powder, 0-14 pH Probe with BNC Connector & 300cm Cable for Wide Application

E - 312 E - 312 High Accuracy pH Electrode with Calibration Powder, 0 - 14 pH Probe with BNC Connector & 300cm Cable for Wide Application - Gain Express E - 312 E - 312 High Accuracy pH Electrode with Calibration Powder, 0 - 14 pH Probe with BNC Connector & 300cm Cable for Wide Application - Gain Express

E-312 High Accuracy pH Electrode with Calibration Powder, 0-14 pH Probe with BNC Connector & 300cm Cable for Wide Application

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)

SOL-ORP-256MV ORP Oxidation-Reduction Potential REDOX 256mV Calibration Solution 50ml

SOL - ORP - 256MV ORP Oxidation - Reduction Potential REDOX 256mV Calibration Solution 50ml - Gain Express SOL - ORP - 256MV ORP Oxidation - Reduction Potential REDOX 256mV Calibration Solution 50ml - Gain Express

SOL-ORP-256MV ORP Oxidation-Reduction Potential REDOX 256mV Calibration Solution 50ml

$26.90 USD

CM-8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style

CM - 8000 CM - 8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style - Gain Express CM - 8000 CM - 8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style - Gain Express

CM-8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style

$21.90 USD

CM-2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style

CM - 2000 CM - 2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style - Gain Express CM - 2000 CM - 2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style - Gain Express

CM-2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style

$21.90 USD

SNS-PHM-224 PH Replacement Electrode for Pen Type Combo Meter PHM-224 TDS-240 ECM-226

SNS - PHM - 224 PH Replacement Electrode for Pen Type Combo Meter PHM - 224 TDS - 240 ECM - 226 - Gain Express SNS - PHM - 224 PH Replacement Electrode for Pen Type Combo Meter PHM - 224 TDS - 240 ECM - 226 - Gain Express

SNS-PHM-224 PH Replacement Electrode for Pen Type Combo Meter PHM-224 TDS-240 ECM-226

$25.90 USD

10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera

10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera - Gain Express 10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera - Gain Express

10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera

SNS-PH9851 BNC pH Electrode sensor probe with protective cap

SNS - PH9851 BNC pH Electrode sensor probe with protective cap - Gain Express SNS - PH9851 BNC pH Electrode sensor probe with protective cap - Gain Express

SNS-PH9851 BNC pH Electrode sensor probe with protective cap

$12.00 USD

SNS-ORP-001 An Extra ORP Electrode for 2-in-1 ORP & Temperature Pentype Tester

SNS - ORP - 001 SNS - ORP - 001 An Extra ORP Electrode for 2 - in - 1 ORP & Temperature Pentype Tester - Gain Express SNS - ORP - 001 SNS - ORP - 001 An Extra ORP Electrode for 2 - in - 1 ORP & Temperature Pentype Tester - Gain Express

SNS-ORP-001 An Extra ORP Electrode for 2-in-1 ORP & Temperature Pentype Tester

CP-RHSN10 Cover Plate for New Design Refractometer

CP - RHSN10 Cover Plate for New Design Refractometer - Gain Express

CP-RHSN10 Cover Plate for New Design Refractometer

$3.50 USD

CP-RHBN90 Cover Plate for New Design Honey Refractometer

CP - RHBN90 CP - RHBN90 Cover Plate for New Design Honey Refractometer - Gain Express

CP-RHBN90 Cover Plate for New Design Honey Refractometer

$3.50 USD

CP-OLD Cover Plate for Traditional Refractometer

CP-OLD Cover Plate for Traditional Refractometer - Gain Express

CP-OLD Cover Plate for Traditional Refractometer

$3.50 USD

CDC-B USB Cable RS232 CD Software with 3.5mm Diameter Jack

CDC - B CDC - B USB Cable RS232 CD Software with 3.5mm Diameter Jack - Gain Express

CDC-B USB Cable RS232 CD Software with 3.5mm Diameter Jack

$51.90 USD

CDC-S USB Cable RS232CD Software with 2.5mm Diameter Jack

CDC - S CDC - S USB Cable RS232CD Software with 2.5mm Diameter Jack - Gain Express

CDC-S USB Cable RS232CD Software with 2.5mm Diameter Jack

$36.00 USD

JDM-800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM-800 )

JDM - 800 JDM - 800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM - 800 ) - Gain Express JDM - 800 JDM - 800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM - 800 ) - Gain Express

JDM-800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM-800 )

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