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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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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
Conductivity (EC) Meter
All products
Water Quality Meters
Conductivity (EC) Meter
Customizable
Ready to Ship
pH Meter Digital 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester With Bluetooth
$29.50 - $33.29
Shipping: $10.14/piece
Min. Order: 5 pieces
Add to cart
Pentype EC Meter Conductivity Tester 0~19.9EC Range Factory Calibrated
$8.59 - $8.60
Shipping to be negotiated
Min. Order: 100 pieces
Professional Multi-parameter ORP Water Quality tester pH/ORP/Temp/Cond/TDS/Salt with ORP probe, Replaceable Probe
$97.56 - $108.11
Shipping: $31.80/set
Min. Order: 1 set
Add to cart
Digital 3-in-1 pH, EC & TDS Conductivity Monitor w/ 3.5" Large Dual Display, for Aquaculture, Aquarium, Pond, Hydroponics
$49.90 - $57.80
Shipping to be negotiated
Min. Order: 15 pieces
3-in-1 pH, EC & TDS Conductivity Monitor ATC, Digital Water Quality Meter Tester Multi-Parameter, 3.5" Large Dual Display
$49.90 - $57.80
Shipping to be negotiated
Min. Order: 15 pieces
Digital EC Conductivity Meter Tester Factory Calibrated 10~1990uS/cm Range
$9.49 - $9.50
Shipping to be negotiated
Min. Order: 100 pieces
Handheld High Accuracy Portable 3-in-1 Digital Pen-type Water Quality Conductivity TDS Meter, ppm ppt uS mS C/F
$22.71
Shipping to be negotiated
Min. Order: 50 pieces
3-in-1 Digital EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic
$20.65 - $23.30
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
3in1 Waterproof EC CF ppm Stick Meter Nutrient Water Quality Tester
$21.00
Shipping to be negotiated
Min. Order: 10 pieces
Made in Taiwan/Digital 6-in-1 MultiFunction Pentype Water Quality Meter pH Temperature Conductivity TDS Salt Tester optional ORP
$73.17 - $81.08
Shipping: $31.80/piece
Min. Order: 1 piece
2 sold
Add to cart
Pentype Digital Conductivity Sensor Meter Water Quality Tester Pocket Size With ATC Factory Calibrated for Pools, Spas, Aquarium
$6.60 - $7.80
Shipping to be negotiated
Min. Order: 40 pieces
Pentype Conductivity Meter 3-in-1 Tester Multipoint Dustproof Calibration IP65 (OEM Packaging Available)
$22.14
Shipping to be negotiated
Min. Order: 50 sets
Pentype EC Conductivity Meter Tester 0-19.99ms/cm for Hydroponics, Aquaculture, etc. (OEM packaging available)
$7.00 - $8.30
Shipping to be negotiated
Min. Order: 40 sets
Pentype 3-in-1 Conductivity Meter Multipoint Dustproof Calibration Hydroponics IP65 Waterproof Auto Power Off
$22.14
Shipping to be negotiated
Min. Order: 50 pieces
Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type w/ Backlight & ATC
$7.00 - $8.30
Shipping to be negotiated
Min. Order: 40 pieces
Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Aquarium, Pond, Hydroponic
$21.05 - $23.76
Shipping: $31.80/piece
Min. Order: 1 piece
Add to cart
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