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GAIN EXPRESS HOLDINGS LIMITED
HK
12YRS
Main categories: industrial Endoscope,PH meter,Refractometer,Fish Finder,Lux Meter
Top picks
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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
Shipping to be negotiated
Min. Order: 1 set
23 orders
Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Test Jewelry Identifier Tool Equipment
$73.75 - $81.94
Shipping to be negotiated
Min. Order: 2 pieces
8 orders
Digital Waterproof USB Humidity Temperature and Pressure Data Logger gauge, generate PDF/Excel report(OEM packaging available)
$43.75 - $48.61
Shipping to be negotiated
Min. Order: 1 set
Digital PAR Meter Full-Spectrum Quantum PPFD Tester for Plant Photosynthetic Activity Measurement(OEM Packaging Available)
$57.83 - $64.25
Shipping to be negotiated
Min. Order: 5 pieces
10 orders
Water Activity Meter Food Water Activity Analyzer for Food Dried Fruit Grain Vegetable AW Monitor (OEM Packaging Available)
$325.30 - $341.77
Shipping to be negotiated
Min. Order: 1 set
LUCKY FF918-CWLS Color Display Bait Boat Fish Finder with 300m/980ft Wireless Operating Range(OEM Packaging Available)
$99.45 - $115.90
Shipping to be negotiated
Min. Order: 1 set
6 orders
Digital Carbon Dioxide Temperature Humidity CO2 Monitor WB DP Tester Handheld CO2 Meter (OEM Packaging Service Available)
$93.50 - $103.90
Shipping to be negotiated
Min. Order: 1 set
Sound Level Meter
Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone Portable w/ Backlight Calibration Tool
$78.05 - $86.49
Shipping to be negotiated
Min. Order: 1 piece
Digital
MAN-45 Professional Digital Manometer +/-13.78kPa +/-2PSI Suitable for 1-1 pipes,Ventilation,Air Condition System 11 units
$20.61 - $23.26
Shipping to be negotiated
Min. Order: 1 piece
Digital Battery Capacity Tester Volt Checker Load Analyzer Display Check AAA AA C D 9V 3.7V 1.5V Button Cell Household
$1.25 - $1.50
Shipping to be negotiated
Min. Order: 5 pieces
NEW ARRIVALS
Air Quality Meters
Automotive Testing Equipment
Water Quality Meters
NEW Carbon Dioxide Monitor CO2 Controller w/ 4.6 Meters Dual Beam NDIR, Day Night Detector Sensor For Greenhouse, Mushrooms
$93.90 - $108.90
Min. Order: 1 set
14X Loupe Magnification Hasting Loupe Mini Optical Glass Triplet Lens Stainless Steel Body w/ Foldaway Pocket Design Stamp & Coi
$4.76 - $5.72
Min. Order: 5 pieces
Dual Differential Manometer Gas Pressure Tester Meter, Backlight 12 Selectable Units Air Pressure Gauge W/ Data Storage Function
$32.50 - $36.11
Min. Order: 5 pieces
Advanced Digital PAR Meter Light Intensity Full-Spectrum Quantum PPFD Tester Indoor & Outdoor Plant Photosynthetic Activity
$57.83 - $64.25
Min. Order: 5 pieces
Digital CO2 Carbon Dioxide Monitor Detector 400~5000PPM NDIR Sensor Temperature Humidity Tester for Home, Office, Classroom Etc
$21.56 - $24.34
Min. Order: 5 pieces
2-in-1 Tachometer Digital Non-contact & Contact Laser Photo Sensor Real-Time Measurement for Electric Power, Petrachemical, Etc
$16.08 - $18.15
Min. Order: 5 pieces
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
All-in-1 Accurate Mountable Indoor Air Quality Monitor, Real-time CO2 & Temperature & Humidity Level with Visual & Alarm
$120.73 - $133.78
Min. Order: 5 pieces
Wall Mountable CO2 Detector w/ Alarm 0~9999ppm Range Carbon Dioxide Monitor Meter RH Indoor Air Quality IAQ Sensor
$97.02 - $107.51
Min. Order: 1 piece
Mini Vehicle Car Carbon Monoxide CO Gas Detector Portable Digital Meter W/ Lanyard Clip Audible & Visual Alarm RV, Aircraft
$49.09 - $54.54
Min. Order: 5 pieces
Digital Thermostat Time Temperature Controller 1200W 10A, Heating/Cooling Time Control Modes for Appliances, Fish Tank, Etc
$10.97 - $13.20
Min. Order: 5 pieces
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
Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Car Trading, Inspection, Non-magnetic Coat
$13.54
Min. Order: 10 pieces
Digital Force Meter 1K Gauge Pull & Push Magnitude Test Tester Newton meter Newton N / kg / lb / g Measurement
$120.48 - $129.87
Min. Order: 1 piece
Digital Non Contact Tachometer Gasoline Engine 50.0~9,999 r/min for Motor Machine Fan Chemical Fiber Automobile Airplane Steamer
$87.07 - $96.49
Min. Order: 1 piece
FM-207_2K Digital Force Meter Gauge Pull & Push Magnitude Test Tester N / kg / lb / g Measurement for Manufacturing, Electronics
$120.48 - $129.87
Min. Order: 1 piece
Car Data Saver 12V DC Hold Memory Code Engine Maintenance Radio Station Clock Setting
$8.50 - $10.10
Min. Order: 40 pieces
High Accuracy pH Electrode with Calibration Powder, 0-14 pH Glass Bulb Probe with BNC Connector 300cm Cable
$6.65 - $8.00
Min. Order: 5 pieces
6 in 1 Professional Multi-parameter Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter
$62.16
Min. Order: 5 pieces
6 in 1 Professional Multi-parameter Digital Multi-function Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature
$62.16
Min. Order: 5 pieces
0.0-14.0 pH & Temperature Meter ATC Dual Display, for Hydroponics Aquariums, Portable Digital Pen-Type Tester, IP67 Waterproof
$18.11 - $20.44
Min. Order: 1 piece
Made in Taiwan/Digital 6-in-1 MultiFunction Pentype Water Quality Meter pH Temperature Conductivity TDS Salt Tester optional ORP
$73.17 - $81.08
Min. Order: 1 piece
Professional Multi-parameter ORP Water Quality tester pH/ORP/Temp/Cond/TDS/Salt with ORP probe, Replaceable Probe
$97.56 - $108.11
Min. Order: 1 set