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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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Top picks
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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Deluxe Digital Light Level Meter/ Tester 200k Lux Foot Candle FC LCD Photo
$19.06
/
piece
30 pieces
(Min. Order)
Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone Portable w/ Backlight Calibration Tool
Sound Level Meter
$78.05 - $86.49
/
piece
1 piece
(Min. Order)
30~130 dB Decibel w/ Software /Multifunctional Digital Sound Noise Level Meter
$60.00 - $66.67
/
piece
1 piece
(Min. Order)
Measure Pythagoras Area Volume 100M Range Finder +/-1.5mm Accuracy Meter Feet Inches Units Digital Laser Meter Bubble Level
$72.50 - $83.70
/
piece
6 pieces
(Min. Order)
30~130dBA A/C Frequency Sound Level Meter Digital Audio Voice Decibel Tool Data Recording
$23.52
/
piece
100 pieces
(Min. Order)
3-in-1 Honey Refractometer Brix/Moisture/Baume Tester Meter ATC, Tri-Scale 58-90%/12-27%/38-43Be', Sugar Water Content Level
$11.46 - $13.78
/
piece
5 pieces
(Min. Order)
Digital Light Level Meter Tester Lux Photo Light Sensor 0~50,000
$9.93
/
piece
50 pieces
(Min. Order)
Digital Sound Decibel Noise Level Meter Tester 30~130dBA Range Factory Pre-calibrated w/ Tripod Mounting Hole
$19.14 - $21.60
/
piece
1 piece
(Min. Order)
Multifunction Waterproof Digital Angle Finder Gauge Protractor Meter Bubble Spirit Level 360 degree Analog Quadrant Display
$19.75 - $22.29
/
piece
1 piece
(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)
Sound Level Meter Digital Noise Meter 30~130dBA LCD display with Backlight +/-1.5dB Accuracy
$9.50 - $11.20
/
piece
10.0 pieces
(Min. Order)
Digital Sound Noise Level Tester Calibrator for Sound Level Meter 94dB & 114dB output Class I w/ Battery +/-0.3 db Accuracy
$78.05 - $86.49
/
piece
1 piece
(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 Multifunction Waterproof 360 degree Analog Quadrant Display Angle Finder Gauge Meter (OEM Packaging Available)
$19.73 - $22.27
/
set
1 set
(Min. Order)
Sound Level Meter Tester Noise Decibel Detector Instrument 30~130dBA Handheld Digital Device w/ Backlight & LCD Display
$9.55 - $11.49
/
piece
1 piece
(Min. Order)
5in1 Digital Double Insulation Auto /Manual Ranges Multimeter Thermometer Lux Sound Hygrometer Meter
$37.10
/
piece
20 pieces
(Min. Order)
Digital Protractor Angle Gauge Finder 4 x 90degree Bevel Box Inclinometer Level Meter Pocket Size (OEM Packaging Available)
$12.29
/
set
100 sets
(Min. Order)
Digital Protractor Angle Gauge Finder Bevel Box Inclinometer Level Meter Magnetic Base Masonry Construction Mini Pocket Size
$12.29
/
piece
100 pieces
(Min. Order)
Digital Power Meter Wattmeter Plug-in Socket Design Energy Consumption Meter Voltage Current Electricity
$7.44 - $8.95
/
piece
1 piece
(Min. Order)
LUCKY Rechargeable Battery Waterproof Wireless Fishfinder/ Fish finder 2-131FT Sensor 125kHz Sonar Frequency Bottom Contour
$58.80 - $66.90
/
piece
1 piece
(Min. Order)
High Quality Digital Wattmeter Power Meter Energy Tester 220V Large LCD Voltage Current Frequency Plug-in Socket Design
$7.44 - $8.95
/
piece
1 piece
(Min. Order)
Digital 3-in-1 pH, EC & TDS Conductivity Monitor w/ 3.5" Large Dual Display, for Aquaculture, Aquarium, Pond, Hydroponics
$49.90 - $57.80
/
piece
15.0 pieces
(Min. Order)
LUCKY 45m (147.6ft) Depth Range Handheld Fish Finder Digital Display Wireless Sonar Sensor (OEM Packaging Available)
$34.50 - $40.00
/
set
10.0 sets
(Min. Order)
Digital Dosimeter Logging Noise Dose Meter 60 - 130, 60 - 130dB (A and C) Sound Decibel Level Tester (OEM Packaging Available)
$207.78 - $237.90
/
set
1 set
(Min. Order)
Digital Level Angle Finder Bevel Box Magnetic Base Backlight Tilt Direction Indicator Inclinometer Gauge 360deg (4 x 90deg)
$15.07
/
piece
10 pieces
(Min. Order)
3-in-1 pH, EC & TDS Conductivity Monitor ATC, Digital Water Quality Meter Tester Multi-Parameter, 3.5" Large Dual Display
$49.90 - $57.80
/
piece
15 pieces
(Min. Order)
Digital Angle Gauge Meter Protractor 360 degree Magnets Base Level Slope Bevel Box Inclinometer
$17.92
/
piece
50 pieces
(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)
Mini Vehicle Car Carbon Monoxide CO Gas Detector Portable Digital Meter W/ Lanyard Clip Audible & Visual Alarm RV, Aircraft
$49.09 - $54.54
/
piece
5 pieces
(Min. Order)
Digital Angle Gauge Level Protractor 0deg~360degrees Inclinometer 1 magnet Groove Side with Backlight
$13.90 - $19.90
/
piece
1 piece
(Min. Order)
Mini Digital Level Box +/-180 degree (0~360degree) Range Flip Up LCD Angle Finder Tilt Gauge with Magnet
$20.10 - $23.00
/
piece
10.0 pieces
(Min. Order)
Digital High Accuracy Sound Level Noise Meter Measuring 35dB~135dB Temperature Frequency with Backlight
$11.66 - $14.39
/
piece
1 piece
(Min. Order)
Digital Handheld Lux Light Level Illuminance Meter Measuring 0Lux~200kLux Temperature with Backlight
$11.65 - $14.20
/
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)
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