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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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Digital Pen-size pH Meter 0-14pH Range w/ ATC, IP65 Waterproof Big LCD Screen Automatic Calibration
$19.46
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
6-in-1 Pen type Water Quality Tester Multi-Parameter pH meter Temp. EC ORP TDS SAL Optional ORP Probe(OEM available)
$73.17 - $81.08
Shipping: $31.80/set
Min. Order: 1 set
5 sold
Add to cart
pH / EC / Temperature Meter ATC 3 in 1 Waterproof Combo Multi-Parameter Tester Pool Spa Drinking Purity
$15.80 - $17.83
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Pen type pH & Temperature Meter 0.00-14.00pH & 0.0-55.0degC High Accuracy ATC +/-0.1pH Water Tester (OEM packaging available)
$13.30
Shipping to be negotiated
Min. Order: 10 sets
Online PH/EC Conductivity Monitor Meter Tester ATC, Wall Mountable & Rechargeable, Water Quality Real-time Continuous Monitoring
$20.70 - $23.36
Shipping: $31.80/piece
Min. Order: 1 piece
Add to cart
Digital pH and Temperature Meter degree C / degree F 0-14 pH Range with 2-Liner Waterproof (OEM Packaging Available)
$21.35 - $23.84
Shipping to be negotiated
Min. Order: 50 sets
3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Calibration Kit 0.01mS/cm Resolution
$21.08
Shipping to be negotiated
Min. Order: 10 pieces
PH & Temperature 2-in-1 Continuous Monitor Meter w/ Backlight Dual Display 0.00~14.00pH degC/ degF for Aquariums Hydroponics
$18.35 - $20.71
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
6 in 1 Professional Multi-parameter Digital Multi-function Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature
$62.16
Shipping to be negotiated
Min. Order: 5 pieces
PH & Chlorine Cl2 Level Meter Monitor Tester Water Quality Analysis pH Swimming Pool Spa (OEM Packaging Available)
$12.86 - $15.48
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
Soil pH, Moisture & Light Meter 3 Way Tester Kit Plants Growth Watering Quality Monitoring Checker Gardening Acidity Probe Test
$3.51
Shipping to be negotiated
Min. Order: 20 pieces
0.0-14.0 pH & Temperature Meter ATC Dual Display, for Hydroponics Aquariums, Portable Digital Pen-Type Tester, IP67 Waterproof
$18.11 - $20.44
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
3-in-1 Soil pH, Moisture & Light Meter Household Indoor Outdoor Gardening Test Tool Acidity Probe (Silver)
$3.39
Shipping to be negotiated
Min. Order: 20 pieces
pH / EC / Temperature Meter ATC 3 in 1 Waterproof Combo Multi-Parameter Tester Pool Spa Drinking Purity(OEM packaging available)
$15.80 - $17.83
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
6 in 1 Multi-parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter Water Quality Meter (OEM Packaging Available)
$58.89
Shipping to be negotiated
Min. Order: 5 sets
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