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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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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
High Quality Digital Wattmeter Power Meter Energy Tester 220V Large LCD Voltage Current Frequency Plug-in Socket Design
$7.44 - $8.95
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Dental Surgical LED Head Light Lamp Dentist High Quality 143cm Cable Length + Rechargeable Battery (OEM Packaging Available)
$202.53
Shipping to be negotiated
Min. Order: 1 set
Portable Digital Grain Moisture Meter High Quality Rice Corn Wheat Tester Analyzer Hygrometer Humidity Temperature -10~60degreeC
$23.63 - $26.67
Shipping: $31.80/piece
Min. Order: 1 piece
Add to cart
Digital Tire Tread Depth Gauge 0-25mm High Quality Checker Tire Tester Car Trucks Vans (OEM Packaging Available)
$11.91
Shipping to be negotiated
Min. Order: 200 sets
Handheld High Accuracy Portable 3-in-1 Digital Pen-type Water Quality Conductivity TDS Meter, ppm ppt uS mS C/F
$22.71
Shipping to be negotiated
Min. Order: 50 pieces
3-in-1 Multifunctional Water Quality Tester (pH, TDS, Temperature) High Accuracy Auto Calibration ATC (OEM Packaging Available)
$11.96 - $16.79
Shipping to be negotiated
Min. Order: 50 pieces
Digital 3-in-1 Portable pH TDS Temperature Water Quality Meter High Accuracy with Backlight
$13.74 - $21.90
Shipping to be negotiated
Min. Order: 1 piece
Digital Pensize ORP Redox Tester Oxidation Reduction Potential Meter 1200~1200mV Water Quality Measurement High Accuracy
$16.43 - $18.54
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
pH Digital Portable High Accuracy Pen-Type Meter Water Quality Tester with Automatic Calibration
$2.55 - $2.82
Shipping to be negotiated
Min. Order: 1 piece
TDS Digital Portable High Accuracy Pen-Type Meter Waterproof Water Quality Tester
$1.46 - $2.90
Shipping to be negotiated
Min. Order: 1 piece
Water Quality Long pH Electrode w/ 50 Ohm 150cm BNC Connector Cable & Calibration Powder for Sea Water and Acid Rain
$8.00
Shipping to be negotiated
Min. Order: 500 pieces
2-in-1 Multifunction High Precision ORP Meter pH meter Water Quality Tester IP67 Waterproof (OEM Packaging Available)
$18.30 - $18.34
Shipping to be negotiated
Min. Order: 50 sets
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
10X Hasting Jewelry Loupe Mini Portable High-Quality Triplet Lens w/ Stainless Steel Body, Foldaway Design Pocket-size
$4.58 - $5.47
Shipping: $5.60/piece
Min. Order: 5 pieces
Add to cart
Portable Desktop LED light for Polariscope / Darkfield Loupe
$7.70
Shipping to be negotiated
Min. Order: 10 pieces
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