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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
High Sensitivity Handheld Precision Combustible Methane Propane Gas Leak Detector Alarm Sensor 40-640ppm Range
$61.83
/
piece
50 pieces
(Min. Order)
Brix Refractometer ATC High-Concentrated Sugar Solution Content Test 0-32% Homebrew Tester Meter (OEM Packaging Available)
$8.64 - $10.40
/
set
1 set
(Min. Order)
6 in 1 Professional Multi-parameter Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter
$62.16
/
piece
5 pieces
(Min. Order)
6 in 1 Professional Multi-parameter Digital Multi-function Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature
$62.16
/
piece
5 pieces
(Min. Order)
Portable Film Coating Thickness Gauge Tester Meter 0~1.80mm/0-~71.0 mil Non-magnetic Coat (OEM Packaging Available)
$13.54
/
set
10 sets
(Min. Order)
Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Car Trading, Inspection, Non-magnetic Coat
$13.54
/
piece
10 pieces
(Min. Order)
Soil PH, Moisture & Light Meter for Garden Farm Lawn Household Indoor Outdoor (Silver)
$3.74
/
piece
20 pieces
(Min. Order)
Soil pH, Moisture & Light Meter 3 Way Tester Kit Plants Growth Watering Quality Monitoring Checker Gardening Acidity Probe Test
$3.51
/
piece
20 pieces
(Min. Order)
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Pentype pH Meter 0.05pH Accuracy Liquid Acidity Tester for Aquarium, Spa, Laboratory, Household Water(OEM Packaging available)
$3.99
/
piece
20 pieces
(Min. Order)
NEW Pentype 7-in-1 PH Meter TDS/EC/ORP/Salinity/S.G./Temp. Tester For Drinking Water, Aquariums, Pool (OEM Packaging Available)
$15.02 - $16.95
/
piece
5 pieces
(Min. Order)
PH & Chlorine Cl2 Level Meter Monitor Tester Water Quality Analysis pH Swimming Pool Spa (OEM Packaging Available)
$12.86 - $15.48
/
set
1 set
(Min. Order)
PHM-203 Water monitor Quality Analysis PH & Free Chlorine Cl2 Level Meter Tester Monitor pH Swimming Pool Spa
$12.86 - $15.48
/
piece
1 piece
(Min. Order)
Digital Pen-size pH Meter 0-14pH Range w/ ATC, IP65 Waterproof Big LCD Screen Automatic Calibration
$19.46
/
piece
100 pieces
(Min. Order)
Digital pH and Temperature Meter degree C / degree F 0-14 pH Range with 2-Liner Waterproof (OEM Packaging Available)
$21.35 - $23.84
/
set
50.0 sets
(Min. Order)
Smart Mini WIFI 5-in-1 Water Quality Tester pH/TDS/SALT/S.G. & Temp Meter TUYA Smart App for Aquarium Hydroponics Pool Aqua
$25.22 - $28.46
/
piece
5 pieces
(Min. Order)
Digital Pentype pH Meter 7-in-1 PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter for Drinking Water, Aquariums, Pool
$15.02 - $16.95
/
piece
5 pieces
(Min. Order)
6 in 1 Professional Multi-parameter Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter
$62.16
/
piece
5 pieces
(Min. Order)
Pentype pH Meter Digital 0.00 - 14.00pH Range With Auto Calibration For Aquarium, Food Processing, Etc (OEM Packaging Available)
$4.32 - $5.55
/
piece
100 pieces
(Min. Order)
Pocket Size 0.0-14.0 pH Meter Digital Water Quality Tester Pen Type Household Drinking Water, Swimming Pools +/- 0.1pH
$6.59
/
piece
100 pieces
(Min. Order)
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