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GAIN EXPRESS HOLDINGS LIMITED
13yrs
Hong Kong S.A.R.
Main categories: industrial Endoscope,PH meter,Refractometer,Fish Finder,Lux Meter
NEW ARRIVALS
Air Quality Meters
Automotive Testing Equipment
Water Quality Meters
Optical Fiber Identifier Fault Locator 800~1700nm Wavelength Network Testing InGaAs Probe Lightweight Colored Screen Display
$60.20-66.89
Min. Order: 5 pieces
Digital 3-in-1 pH EC Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats Soft Solid Food Samples with ATC
$29.33-33.10
Min. Order: 5 pieces
2-in-1 Food PH Soil Meter Temperature Measure Acidity Tester for Dough Meat Cheese Bread Fruit High Precision Replaceable Probe
$19.20-21.67
Min. Order: 5 pieces
Sound Level Meter Datalogger Noise Tester 43,000 Record Capacity Visual Alarm PC Link Color Screen for Home School Noise Monitor
$22.89-25.83
Min. Order: 5 pieces
Grain Moisture Meter Water Content Analyzer with 11.81" Metal Probe for 14 Grains Wheat Corn Rice Peanut Soybean
$10.11-12.16
Min. Order: 5 pieces
10X Magnification Loupe 6 LED & UV Light Triplet 22mm Optic Lens Rechargeable Jewelry Tool for Collectors Gemologists Jewelers
$9.87-11.87
Min. Order: 5 pieces
Smart Wifi CO2 Detector Monitor Air Quality Indoor Temperature & Humidity Tester NDIR Sensor for Grow Tent, Mushroom, Home
$38.81
Min. Order: 3 pieces
Digital CO2 Controller Greenhouse CO2 Sensor 4.5m Remote Automatic Day-Night Detection Functionality Grow Rooms Homes Offices
$93.90-108.90
Min. Order: 1 set
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
Digital Waterproof USB Datalogger Humidity Temperature Pressure Barometric Data Logger PDF Excel Report LED indicator
$43.73-48.58
Min. Order: 5 pieces
5 in 1 Air Quality Monitor Carbon Monoxide CO Carbon Dioxide CO2 TVOC Humidity and Temperature Detector NDIR Sensor Office Home
$26.59-30.01
Min. Order: 1 piece
CO2 Meter Detector w/ NDIR Sensor Air Quality Monitoring 9-in-1 Portable Tester CO2, PM2.5/10, HCHO, TVOC, AQI, Temperature
$86.18-95.50
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
2-in-1 Digital Contact & Non-contact Tachometer | Laser Photo | 2.5~99,999 RPM | Auto-Ranging, LSI Circuit & Crystal Time Base
$21.65-24.43
Min. Order: 1 piece
2-in-1 Digital Tachometer Photo & Contact RPM 2.5 ~ 99,999 r/min Laser Range Accurate Speed Tester for Machinery Fan Automobile
$68.75-76.39
Min. Order: 5 pieces
Shore D Hardness Meter Tester Automotive Thickness Gauge 0~100HD Range Rubber Plastics High Quality LCD Self Calibrated
$16.64-18.78
Min. Order: 5 pieces
Mitech MH600 Portable Leeb Hardness Meter 6 Impact Devices IP65 Metal 170~960HLD Chinese-English Metallic with Carrying Case
$759.30-898.00
Min. Order: 1 piece
Automotive Noise Vibration Finder Electronic Stethoscope Battery Powered High Sensitivity Long Short Probe 100Hz~10kHz Range
$31.63-35.70
Min. Order: 1 piece
GAINEXPRESS 8-in-1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester
$43.12-47.92
Min. Order: 5 pieces
Pen-Type pH Meter Water Quality Tester with Backlight Digital and Portable
$2.96-3.56
Min. Order: 1 piece
TDS / EC Meter 2-in-1 Pentype Digital Water Quality Tester with ATC Temperature Measurement for Water Analysis Hydroponics
$4.50
Min. Order: 20 pieces
pH Meter Digital 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester With Bluetooth
$29.50-33.29
Min. Order: 5 pieces
6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temperature Tester Intelligent Scoring Mode Colored Backlight Indicator
$27.15-30.64
Min. Order: 5 pieces
Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Aquarium, Pond, Hydroponic
$21.05-23.76
Min. Order: 1 piece
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
Min. Order: 1 set
10 orders
Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Test Jewelry Identifier Tool Equipment
$73.75-81.94
Min. Order: 2 pieces
8 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
LUCKY FF918-CWLS Color Display Bait Boat Fish Finder with 300m/980ft Wireless Operating Range(OEM Packaging Available)
$99.45-115.90
Min. Order: 1 set
5 orders
Handheld Par Meter PPFD Tester Up to 3999umol/(m2s) Measurement For for Green House and Led Grow Lights (OEM Packaging Available
$75.85-85.90
Min. Order: 1 set
Digital PAR Meter Full-Spectrum Quantum PPFD Tester for Plant Photosynthetic Activity Measurement(OEM Packaging Available)
$57.83-64.25
Min. Order: 5 pieces
6 orders
Thermocouple Thermometer K/J/ T Datalogger 4-Channel Display With Real Time Data Logging Visible Alarm & ADJ Compensation
$37.49-41.65
Min. Order: 5 pieces
7 orders
Digital pH Controller Dual Relay Output Temperature Compensation Adjustable pH 4.5-8.5 Ideal Aquariums Hydroponics Indoor Plant
$157.91-175.30
Min. Order: 1 piece
High Accuracy Measuring 30dB-130dB with Data Record Function Sound Level Meter with Backlit Display Compact Professional
$24.05-27.14
Min. Order: 5 pieces
MAN-45 Professional Digital Manometer +/-13.78kPa +/-2PSI Suitable for 1-1 pipes,Ventilation,Air Condition System 11 units
$20.61-23.26
Min. Order: 1 piece