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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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NEW Handheld Dark Field 10x Magnification Power Loupe Gem Gemstone Gemology Tester with 18mm Diameter Viewing Lens
$13.92 - $15.71
Shipping: $28.00/piece
Min. Order: 1 piece
5 recent viewed
Add to cart
Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Test Jewelry Identifier Tool Equipment
$73.75 - $81.94
Shipping: $15.90/piece
Min. Order: 2 pieces
9 sold
Add to cart
Gemology Gemstone Gem Refractometer w/ Monochromatic Light Filter + Polarizing Lens 1.30 ~ 1.81 RI Range
$48.92 - $54.35
Shipping: $31.80/piece
Min. Order: 1 piece
2 sold
Add to cart
30x Magnifying 21mm Triplet Optical Glass LED Light Jeweler Loupe Gem Gemstone Identifier Tool
$10.13 - $12.19
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Handheld Precise Small Diffraction Spectroscope Gemstone Gem Gemelogy Gemological 55mm Length
$19.62 - $22.14
Shipping: $28.00/piece
Min. Order: 1 piece
2 recent viewed
Add to cart
Ruby Filter Gem Emerald Identification Gemstone Red Pink Tester Tool Identifier
$10.39 - $12.50
Shipping: $28.00/piece
Min. Order: 1 piece
1 sold
Add to cart
Gem Refractometer w/ Built-in LED Light + RI Oil Gemstone Identifier Tester Jewelry Tool
$48.21 - $53.57
Shipping: $31.80/piece
Min. Order: 1 piece
11 recent viewed
Add to cart
Foldable Chelsea Jadelite Glass Filter Jewelry Loupe Tester High Quality Identification Tools for Red, Blue, Green Gems
$9.35 - $11.25
Shipping: $5.60/piece
Min. Order: 5 pieces
Add to cart
Handheld Polariscope LED Flashlight Jewelry Gems Gemstone Tools 80mm Length
$16.46 - $18.57
Shipping: $14.00/piece
Min. Order: 2 pieces
1 sold
Add to cart
Big Prism Spectroscope Gem Gemstone Testing Gemological Tester Identifier Tool
$43.75 - $48.61
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Medium Size, Durable Handheld Diffraction Spectroscope Gemological Tool
$20.25 - $22.86
Shipping: $28.00/piece
Min. Order: 1 piece
1 sold
Add to cart
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