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GAIN EXPRESS HOLDINGS LIMITED
HK
12YRS
Main categories: industrial Endoscope,PH meter,Refractometer,Fish Finder,Lux Meter
Top picks

Product categories

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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10X Handheld Magnifier Optical Glass Lens Magnifying Jewelry Loupe 1/16inch & 0.5mm Scale (OEM Packaging Available)
$6.43 - $7.74
Shipping: $15.90/set
Min. Order: 2 sets
Add to cart
Optical Glass Magnifier Double Lens Magnifying Jewelry Gem Tool 10x Magnification 1/16inch & 0.5mm Scale
$6.43 - $7.74
Shipping: $15.90/piece
Min. Order: 2 pieces
Add to cart
Magnification Jeweler Loupe Magnifier Glass 10x 25mm with 8 Glass Reticle Scale Chart 20mm & 8 LED Light
$36.25 - $40.28
Shipping: $8.88/piece
Min. Order: 5 pieces
6 sold
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Magnification Jeweler Loupe Magnifier Glass 10x 25mm with 3 Glass Reticle Scale Chart 20mm & 8 LED Light
$23.42 - $26.43
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Magnification Jeweler Loupe Magnifier Glass 10x 25mm with Glass Reticle Scale Chart 20mm & 8 LED Light
$17.73 - $20.01
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
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
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10x Folding Jeweler Loupe Magnifier + LED light, 18mm lens Jewel Identifier Tool
$3.50 - $4.90
Shipping to be negotiated
Min. Order: 50 pieces
Handheld 10x Folding Foldable Magnification Jeweler Loupe + Built in LED light, 18mm lens (OEM Packaging Available)
$4.18
Shipping to be negotiated
Min. Order: 200 sets
10x Magnification Jeweler Loupe Magnifier Foldable Triplet Lens + 6 LED light, 21mm lens
$9.03 - $10.86
Shipping: $5.60/piece
Min. Order: 5 pieces
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10x Jeweler Loupe Magnifier + LED & UV light, 21mm lens Jewelry Identifier Tool
$10.00 - $12.03
Shipping: $6.36/piece
Min. Order: 5 pieces
10 recent viewed
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10x Magnification Jewelry Loupe, 20.5mm Triplet Lens Achromatic Metal (Aluminum) Black Frame Magnifying Tool
$5.75 - $6.92
Shipping: $14.00/piece
Min. Order: 2 pieces
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10x 21mm Jeweler Magnifier LED UV Light Triplet Lens Achromatic Aplanatic Foldaway Magnifying Gem Optical Tool
$10.17 - $12.23
Shipping: $14.00/piece
Min. Order: 2 pieces
3 recent viewed
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