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GAIN EXPRESS HOLDINGS LIMITED
HK
12
YRS
Main categories: industrial Endoscope,PH meter,Refractometer,Fish Finder,Lux Meter
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Product categories
NEW ARRIVALS
Air Quality Meters
Automotive Testing Equipment
Water Quality Meters
Fishing Tackles/Gears
Dental Loupe
Gemological Instruments / Jeweler Tools
Health, Fitness & Sports
Inspection Cameras / Endoscopes / Borescopes
Microscopes / Ring Lights / Illuminators
Multimeters / Clamp Meters
Measuring Instruments
OEM Products
Ozone Generator
Refractometers
Tension Tester
Water Level Alarm
Weather Station
Ungrouped
300cm long Cable ORP Electrode for ORP Meter Tester Controller (OEM packaging available)
$17.16 - $19.37
(Min. Order) 1 set
20x Magnification 20.5mm Jeweler Gem Loupe Triplet Lens Jewelry Optical Hobbyist Stamp & Coin (OEM Packaging Available)
$6.14 - $7.39
(Min. Order) 2 sets
3-in-1 Automotive Antifreeze Refractometer 1.100 - 1.400kg/l System Coolant Freezing Point (OEM Packaging Available)
$9.05 - $10.88
(Min. Order) 1 set
Gloss Surface Meter 0.1-200 GU Tester Meter 20deg 45deg 75deg for Ceramics Films Textiles Rechargeable Reflectometer Triple
$216.87 - $227.85
(Min. Order) 1 piece
3-in-1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC (OEM packaging available)
$20.65 - $23.30
(Min. Order) 1 set
Greenhouse CO2 Controller w/ 4.5 Meters Remote CO2 Sensor Auto Detect Day Night Function Perfect for Grow Rooms, Home, Offices
$93.90 - $108.90
(Min. Order) 1 set
23 orders
Digital CO2 IAQ Monitor Controller 45M Cable NDIR Sensing Probe w/ Relay Function Green House Home, Office, Factory
$93.90 - $108.90
(Min. Order) 1 piece
CO2 Carbon Dioxide Monitor & Controller (Relay Function) w/ Remote Sensor for Home, Office, Hospital (OEM Packaging Available)
$93.90 - $108.90
(Min. Order) 1 piece
5 orders
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PH Electrode with BNC socket 0.00-14.00 pH Range and 300cm Cable and 2 Calibration Solution(OEM Packaging Available)
$8.04 - $9.67
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
Digital 2-in-1 pH TDS Monitor Aquarium Pool Hydroponic Water Quality Tester Replaceable pH Electrode (OEM Packaging Available)
$18.64 - $21.04
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
2-in-1 pH TDS Digital Monitor Aquarium Pool Hydroponic Spa Water Quality Tester Tool Replaceable pH Electrode
$18.64 - $21.04
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
PH electrode with BNC Connector, 150cm Long Cable PH probe for PH Meter Monitor Controller(OEM packaging available)
$8.78
Shipping to be negotiated
Min. Order: 50 sets
200cm Long pH Electrode w/ Calibration Powder, BNC Cable Connector for Continuous Liquid Measurement (OEM Packaging Available)
$10.53 - $12.67
Shipping: $7.46/piece
Min. Order: 5 pieces
Add to cart
High Accuracy pH Electrode with Calibration Powder, 0-14 pH Glass Bulb Probe with BNC Connector 300cm Cable
$6.65 - $8.00
Shipping: $7.46/piece
Min. Order: 5 pieces
Add to cart
Water Quality Long pH Electrode w/ 50 Ohm 150cm BNC Connector Cable & Calibration Powder for Sea Water and Acid Rain
$8.00
Shipping to be negotiated
Min. Order: 500 pieces
pH Electrode w/ Calibration Powder, BNC Cable 200cm Long Connector for Continuous Liquid Measurement (OEM Packaging Available)
$10.53 - $12.67
Shipping: $7.46/piece
Min. Order: 5 pieces
Add to cart
Long pH Electrode w/ 50 Ohm 150cm BNC Connector Cable & Calibration Powder for Sea Water and Acid Rain (OEM Packaging Available)
$8.00
Shipping to be negotiated
Min. Order: 500 sets
Single Cylinder pH Electrode/ plus BNC Long Cable 2 Calibration Solutions 0.00~14.00PH Measuring Range
$7.50 - $10.50
Shipping to be negotiated
Min. Order: 30 pieces
Digital Online pH & Temperature Continuous Monitor Meter for Pool Pond Spa Tank 2-point Calibration w/ pH Electrode & Temp Probe
$23.70 - $27.20
Shipping to be negotiated
Min. Order: 20 pieces
Digital pH Meter 2-point Calibration Online w/ pH Electrode & Temp Probe for Pool Pond Spa Tank (OEM Packaging Available)
$23.72 - $26.49
Shipping to be negotiated
Min. Order: 50 sets
Digital Mini Portable pH Monitor Meter 0~14.00pH Range Replaceable BNC Probe Electrode for Spa Tank Pool Laboratories
$12.46 - $14.99
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
ORP Redox Electrode, BNC Type Connector Replacement Probe 300cm Extra Long Cable 14cm Long 1.2cm Diameter
$16.16 - $18.24
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Waterproof pH Meter 0~14 Temperature Thermometer Aquarium Pool Water Quality Tester Replaceable Electrode
$15.50 - $17.80
Shipping to be negotiated
Min. Order: 20 pieces
300cm long Cable ORP Electrode for ORP Meter Tester Controller (OEM packaging available)
$17.16 - $19.37
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
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