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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
All products
New
Customizable
Ready to Ship
Digital Pentype 3-in-1 Salinity & Temp Meter Tester NaCl Water Quality ATC Food Pool Cooking Seawater (OEM Packaging Available)
$22.81 - $25.74
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
0~14 pH Meter Water Quality Waterproof Replaceable Electrode Temperature Thermometer Aquarium Pool (OEM Packaging Available)
$15.50 - $17.80
Shipping to be negotiated
Min. Order: 20 sets
Digital ORP Meter Redox Water Quality Tester for Laboratory, Aquarium, Pool, Spas, Hospital Etc (OEM Packaging Available)
$22.50
Shipping to be negotiated
Min. Order: 5 sets
Digital Mini ORP REDOX Meter Tester 0 ~ +/-1999mV Range Electrode +/- 5mV Accuracy
$22.50
Shipping to be negotiated
Min. Order: 5 pieces
Digital Pen-size pH Meter 0-14pH Range w/ ATC, IP65 Waterproof Big LCD Screen Automatic Calibration
$19.46
Shipping to be negotiated
Min. Order: 100 pieces
Digital pH Meter Tester w/ ATC Temperature C/F + Free 3 buffer solutions pH4.01 pH7.00 & pH10.01 (OEM Packaging Available)
$19.46
Shipping to be negotiated
Min. Order: 100 sets
Advanced Digital PAR Meter Light Intensity Full-Spectrum Quantum PPFD Tester Indoor & Outdoor Plant Photosynthetic Activity
$57.83 - $64.25
Shipping: $7.46/piece
Min. Order: 5 pieces
4 recent viewed
Add to cart
Digital PAR Meter Full-Spectrum Quantum PPFD Tester for Plant Photosynthetic Activity Measurement(OEM Packaging Available)
$57.83 - $64.25
Shipping: $7.46/piece
Min. Order: 5 pieces
56 sold
Add to cart
Digital CO2 Carbon Dioxide Monitor Detector 400~5000PPM NDIR Sensor Temperature Humidity Tester for Home, Office, Classroom Etc
$21.56 - $24.34
Shipping: $7.46/piece
Min. Order: 5 pieces
Add to cart
Wireless Weather Station WWVB/DCF77 RCC Indoor Outdoor Temperature Thermometer With 2 Sensors Air Presurre Trend Indicator
$21.90 - $25.90
Shipping: $31.80/piece
Min. Order: 1 piece
Add to cart
Digital Pen-type PH Meter 0.00 - 14.00 pH Range Lightweight Compact W/ ATC for Hydroponics, Aquariums, Swimming Pools, Spas, Etc
$7.60 - $9.00
Shipping to be negotiated
Min. Order: 40 pieces
2-in-1 Tachometer Digital Non-contact & Contact Laser Photo Sensor Real-Time Measurement for Electric Power, Petrachemical, Etc
$16.08 - $18.15
Shipping: $7.46/piece
Min. Order: 5 pieces
Add to cart
Digital Gas Leak Detector 0~9999PPM Range Audible/Visual Alarm Gooseneck Semiconductor Sensor Propane, Natural Gas, Combustible
$33.45 - $37.17
Shipping: $11.34/piece
Min. Order: 5 pieces
Add to cart
Pen-type pH Meter Water Quality Tester Auto-Calibration for Aquarium Pool Urine Water (OEM Packaging Available)
$6.27 - $6.28
Shipping to be negotiated
Min. Order: 100 pieces
Pentype Conductivity Meter 3-in-1 Tester Multipoint Dustproof Calibration IP65 (OEM Packaging Available)
$22.14
Shipping to be negotiated
Min. Order: 50 sets
2-in-1 ORP Redox Temperature Thermometer Water Quality Meter Tester (OEM Packaging Available)
$19.20 - $22.00
Shipping to be negotiated
Min. Order: 20 sets
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