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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
High Sensitivity Handheld Precision Combustible Methane Propane Gas Leak Detector Alarm Sensor 40-640ppm Range
$61.83
/
piece
50 pieces
(Min. Order)
Brix Refractometer ATC High-Concentrated Sugar Solution Content Test 0-32% Homebrew Tester Meter (OEM Packaging Available)
$8.64 - $10.40
/
set
1 set
(Min. Order)
6 in 1 Professional Multi-parameter Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter
$62.16
/
piece
5 pieces
(Min. Order)
6 in 1 Professional Multi-parameter Digital Multi-function Water Quality Monitor Tester pH/ ORP/ EC/ CF/ TDS PPM/ Temperature
$62.16
/
piece
5 pieces
(Min. Order)
Portable Film Coating Thickness Gauge Tester Meter 0~1.80mm/0-~71.0 mil Non-magnetic Coat (OEM Packaging Available)
$13.54
/
set
10 sets
(Min. Order)
Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Car Trading, Inspection, Non-magnetic Coat
$13.54
/
piece
10 pieces
(Min. Order)
Soil PH, Moisture & Light Meter for Garden Farm Lawn Household Indoor Outdoor (Silver)
$3.74
/
piece
20 pieces
(Min. Order)
Soil pH, Moisture & Light Meter 3 Way Tester Kit Plants Growth Watering Quality Monitoring Checker Gardening Acidity Probe Test
$3.51
/
piece
20 pieces
(Min. Order)
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Measuring Instruments
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Quantum PAR Meter Photo Synthetically Active Radiation PPFD Tester for Plant Lighting Horticulture of Indoor & Outdoor Plants
$75.85 - $85.90
/
piece
1 piece
(Min. Order)
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
/
piece
1 piece
(Min. Order)
Smart Meat Food Thermometer W/ Bluetooth Function 98.42Ft. Range, Vibrating Alarm, IP67 Grade for Oven, Grill, Kitchen, BBQ
$26.25 - $29.62
/
piece
2 pieces
(Min. Order)
Smart Sound Level Tester 30dB to 130dB Decibel Meter Colored LED Screen Display Temperature Humidity Measurement
$26.20 - $29.57
/
piece
1 piece
(Min. Order)
Data Logger Thermo-hygrometer Thermometer Temperature and Humidity Datalogging Measurement w/ PC Software and Calendar Display
$29.56 - $33.36
/
piece
5 pieces
(Min. Order)
Dual Channel Thermocouple Thermometer K/J Probes Temperature Measurement Wired & Stainless Steel Home Appliances To Industrial
$14.70 - $16.59
/
piece
5 pieces
(Min. Order)
Stud Finder Wall Scanner Metal Cable Wooden Detection With Positioning Hole Rechargeable Battery Type-C Port 3-color Indicator
$27.68 - $31.24
/
piece
5 pieces
(Min. Order)
Wifi Smart Combustible Gas Leak Detectors Loud & LED Alarm App Control For Natural Gas, LPG, Coal, Methane, Propane Etc
$13.91 - $15.70
/
piece
5 pieces
(Min. Order)
AQM-338 Portable Tester Hydrogen Sulfide Detector H2S Monitor 0~100ppm Electrochemical H2S Sensor with LCD Screen Backlight
$30.02 - $33.88
/
piece
5 pieces
(Min. Order)
Waterproof Soil EC and Temperature Meter Digital Tester with ATC for Potted Plants Gardening Agriculture Farm
$19.32 - $21.80
/
piece
5 pieces
(Min. Order)
Portable 4-in-1 Multi Gas Leak Detector Monitor H2S/O2/CO/ Ex (LEL) IP65 Rechargeable Lithium Battery Gas Analyzer
$66.94 - $74.38
/
piece
5 pieces
(Min. Order)
Decibel Meter Digital Sound Level Meter Datalogger 30~130dB Range A / C / Z Weighted For Home, Factory, Noisy Neighbor
$31.26 - $35.28
/
piece
5 pieces
(Min. Order)
Radiation Detector Dosimeter Geiger Counter Beta Gamma X-ray Rechargeable Radioactive Monitor Tester Switchable 5 Dosage Units
$34.30 - $38.11
/
piece
5 pieces
(Min. Order)
Digital Lux Meter Light Tester Sensor Wireless Luxmeter Photometer Luminometer Footcandle Illuminance for School, Lab, Factory
$9.80 - $11.79
/
piece
1 piece
(Min. Order)
Professional Sound Level Meter with Smart Bluetooth Function 20000 Datalogging Max/MIN/Hold Alarm
$15.38 - $17.36
/
piece
5 pieces
(Min. Order)
Magnetic Mini Voice Activated Recorder 64GB Recording Device with Speaker 192kbps Sound Quality Long-Lasting Battery for Car Lec
$17.19
/
piece
30 pieces
(Min. Order)
Non-Destructive Digital Moisture Meter Colored LCD Screen Pinless Wood Moisture Tester for Drywall / Masonry / Softwood / Hardwo
$18.57 - $20.96
/
piece
5 pieces
(Min. Order)
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
/
piece
5 pieces
(Min. Order)
Thermocouple Thermometer K/J Datalogger 4-Channel Display With Real Time Data Logging Visible Alarm & ADJ Compensation
$37.49 - $41.65
/
piece
5 pieces
(Min. Order)
BAT-377 Pocket Size Battery Tester Checker C AA AAA D N 9V 1.5V Button Cell Batteries Clear Bar Graph LCD Display
$1.34 - $1.62
/
piece
5 pieces
(Min. Order)
Smart Meat Thermometer for Remote Monitoring - Bluetooth Digital Cooking Thermometer with 165ft Wireless Range for Kitchen, BBQ
$28.78 - $32.48
/
piece
5 pieces
(Min. Order)
New Product AC/DC Measurement Small Resistance Meter Insulation Tester for Electrical Machinery (OEM Packaging Available)
$25.32 - $28.57
/
piece
5 pieces
(Min. Order)
Sound Level Tester Smart Decibel Meter 30dB to 130dB Colored LED Screen Display Temperature Humidity (OEM Packaging Available)
$26.20 - $29.57
/
set
1 set
(Min. Order)
Digital Nuclear Radiation Detector Dosimeter Geiger Counter Dose Device Monitor Portable with Dosage Rate Alarm
$56.57 - $62.85
/
piece
1 piece
(Min. Order)
Digital Inclinometer Angle Finder Protractor Level Tester Waterproof IP65 Gauge w/ V-Groove Magnetic Base Beeper Function
$16.42 - $18.53
/
piece
1 piece
(Min. Order)
2-in-1 Digital Protractor Angle Ruler Angle & Length Measurement 300mm (12inches) for Home Improvement, Woodworking, Workshop
$11.51 - $13.90
/
set
1 set
(Min. Order)
2-in-1 Digital Protractor Angle Ruler 200mm (8inch) Angle & Length Measurement for Home Improvement, Woodworking, Workshop
$7.32 - $8.90
/
set
1 set
(Min. Order)
Digital Angle Finder Protractor Meter 0-225degree w/ Horizontal & Vertical Bubble Level Backlit Display(OEM Packaging Available)
$15.23 - $18.90
/
piece
1 piece
(Min. Order)
Digital Angle Gauge Electronic Protractor w/ Magnetic V-Groove Base LED Display Angle Measurement for Table Saw Carpentry etc
$13.90 - $19.90
/
piece
1 piece
(Min. Order)
Angle Finder Gauge Electronic Protractor w/ Magnetic Base V-Groove Level Box for Table Saw Carpentry (OEM Packaging Available)
$13.90 - $19.90
/
set
1 set
(Min. Order)
Multifunctional Digital Protractor Ruler Angle Finder 3 Level Bubble Tools 7 Inch/190mm Easy to Read Function
$7.22 - $8.90
/
set
1 set
(Min. Order)
Digital Angle Finder Level Box with Magnetic Base and Backlight Protractor Inclinometer w/ a Self-inverting Display
$10.25 - $12.90
/
set
1 set
(Min. Order)
Digital Level Box Angle Finder with 4 Sides Magnetic Base Inclinometer & Large LCD Display IP54 Waterproof Level
$13.97 - $16.90
/
set
1 set
(Min. Order)
Digital Mini Angle Finder Height & Depth Gauge 0-80mm Range with Magnetic Base For Woodworking, Construction, Home Decoration
$8.56 - $13.90
/
set
1 set
(Min. Order)
Digital Vibration Meter Vibrometer Gauge Tester Analyzer 10Hz-10kHz Measures Acceleration Velocity Displacement RPM Frequency
$180.72 - $189.87
/
piece
1 piece
(Min. Order)
Digital Vibration Meter Tester Piezoelectric Sensor Acceleration, Velocity and Displacement for Machinery, Quality Control
$174.70 - $188.31
/
piece
1 piece
(Min. Order)
Vibration Calibrator Sensors Meter Tester Calibration, Accelerometer Vibration System Machinery Health R&D Handheld Shaker
$337.35 - $354.43
/
piece
1 piece
(Min. Order)
Vibration Tachometer Meter Piezoelectric Sensor RPM (r/min) Frequency Hz Rotating Machinery Photo Rotation Tester Vibrometer
$216.87 - $227.85
/
piece
1 piece
(Min. Order)
Digital Vibration Meter Piezoelectric Transducer Sensor 10Hz~10kHz Range Tester Displacement Velocity Acceleration
$204.82 - $215.19
/
piece
1 piece
(Min. Order)
Multi Channel Vibration Meter,10Hz~10kHz Piezoelectric Sensor Transducer Digital Velo city Acceleration Displacement Meter
$421.69 - $443.04
/
piece
1 piece
(Min. Order)
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