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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
Digital Wood Moisture Meter Tester, 4 Pin, 5% - 40%, NEW DESIGN
$10.00 - $11.90
(Min. Order) 50 pieces
Digital Pen-type Redox Meter Tester -1999mV~1999mV Millivolts Water Quality Backlight LCD (OEM Packaging Available)
$12.06 - $14.51
(Min. Order) 1 set
Pen-Type pH Meter Water Quality Tester with Backlight Digital and Portable
$2.38 - $2.64
(Min. Order) 1 piece
Digital Protractor Angle Gauge Finder 4 x 90degree Bevel Box Inclinometer Level Meter Pocket Size (OEM Packaging Available)
$12.29
(Min. Order) 100 sets
Pentype Digital Water Tester 999mV ORP Meter Redox Waterproof Industrial Laboratory Use (OEM Packaging Available)
$37.10
(Min. Order) 30 sets
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
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Online PH/EC Monitor Meter Tester ATC Multi Parameter Water Quality Rechargeable Real-time Monitoring (OEM Packaging Available)
$20.70 - $23.36
Shipping: $31.80/set
Min. Order: 1 set
Add to cart
6-in-1 Smart Water Quality Meter pH / EC / TDS / Salinity / SG / Temperature with Easy Calibration 24Hrs Online APP Monitoring
$29.76 - $33.59
Shipping: $16.14/piece
Min. Order: 5 pieces
Add to cart
Smart Water Quality Meter 6-in-1 pH / EC / TDS / Salinity / SG / Temperature Online APP Monitoring (OEM Packaging Available)
$29.76 - $33.59
Shipping: $16.14/piece
Min. Order: 5 pieces
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
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
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
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
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
3-in-1 Pentype EC, pH & Temperature Meter 0.01mS/cm Resolution ATC Water Quality Tester (OEM Packaging Available)
$21.08
Shipping to be negotiated
Min. Order: 10 sets
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
Shipping: $6.36/piece
Min. Order: 5 pieces
Add to cart
3-in-1 pH, EC & TDS Conductivity Monitor Water Quality Meter for Aquaculture, Aquarium, Hydroponics(OEM Packaging Available)
$49.90 - $57.80
Shipping to be negotiated
Min. Order: 15 sets
6 in 1 Professional Multi-parameter Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter
$62.16
Shipping to be negotiated
Min. Order: 5 pieces
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
Shipping: $6.36/piece
Min. Order: 5 pieces
Add to cart
Smart Water Quality Tester PH/ ORP/ EC/ Free Chlorine/ Salinity/ Temperature, 6-in-1 Floating Tester (OEM Packaging Available)
$29.84 - $33.67
Shipping: $10.14/piece
Min. Order: 5 pieces
Add to cart
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