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GAIN EXPRESS HOLDINGS LIMITED
HK
13
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
Soil PH Meter With Pointer Sensor For Gardener Indoor Outdoor Garden Farm Lawn Household
$9.19
(Min. Order) 30 pieces
Digital Wood Moisture Meter Tester, 4 Pin, 5% - 40%, NEW DESIGN
$10.00 - $11.90
(Min. Order) 50 pieces
Digital Pen-type Redox Meter Tester -1999mV~1999mV Millivolts Water Quality Backlight LCD (OEM Packaging Available)
$12.06 - $14.51
(Min. Order) 1 set
Pen-Type pH Meter Water Quality Tester with Backlight Digital and Portable
$2.38 - $2.64
(Min. Order) 1 piece
Digital Protractor Angle Gauge Finder 4 x 90degree Bevel Box Inclinometer Level Meter Pocket Size (OEM Packaging Available)
$12.29
(Min. Order) 100 sets
Pentype Digital Water Tester 999mV ORP Meter Redox Waterproof Industrial Laboratory Use (OEM Packaging Available)
$37.10
(Min. Order) 30 sets
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
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Ready to Ship
Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Test Jewelry Identifier Tool Equipment
$73.75 - $81.94
Shipping: $15.90/piece
Min. Order: 2 pieces
9 sold
Add to cart
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
21 orders
Professional Multi-parameter ORP Water Quality tester pH/ORP/Temp/Cond/TDS/Salt with ORP probe, Replaceable Probe
$97.56 - $108.11
Shipping: $31.80/set
Min. Order: 1 set
Add to cart
Medium Size, Durable Handheld Diffraction Spectroscope Gemological Tool
$20.25 - $22.86
Shipping: $28.00/piece
Min. Order: 1 piece
1 sold
Add to cart
Gemology Gemstone Gem Refractometer w/ Monochromatic Light Filter + Polarizing Lens 1.30 ~ 1.81 RI Range
$48.92 - $54.35
Shipping: $31.80/piece
Min. Order: 1 piece
2 sold
Add to cart
TM-190 Electromagnetic Electric RF Field Strength Tester EMF Meter RF Gauss Meter 20mG with Warning Indicator
$99.39 - $110.14
Shipping: $28.00/piece
Min. Order: 1 piece
13 sold
Add to cart
Water Activity Meter Food Water Activity Analyzer for Food Dried Fruit Grain Vegetable AW Monitor (OEM Packaging Available)
$325.30 - $341.77
Shipping: $37.30/set
Min. Order: 1 set
1 sold
Add to cart
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
Shipping: $28.00/piece
Min. Order: 1 piece
4 recent viewed
Add to cart
Indoor Air Quality 9999ppm Digital Carbon Dioxide Temperature Humidity NDIR Sensor IAQ CO2 Monitor WB DP Tester CO2 Meter
$93.50 - $103.90
Shipping: $44.40/piece
Min. Order: 1 piece
10 sold
Add to cart
6-in-1 Pen type Water Quality Tester Multi-Parameter pH meter Temp. EC ORP TDS SAL Optional ORP Probe(OEM available)
$73.17 - $81.08
Shipping: $31.80/set
Min. Order: 1 set
5 sold
Add to cart
SOL-PH4.003 pH Buffer Solution Calibration Tool with +/- 0.01pH at 25degree Celsius Accuracy (OEM Packaging Available)
$0.60 - $0.90
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
Handheld Heavy Duty Calcite Dichroscope, Trichoic Gem & Gemstones Gemological Testing, 15mm Diameter Gemologist
$20.25 - $22.86
Shipping: $28.00/piece
Min. Order: 1 piece
4 sold
Add to cart
CO2 Carbon Dioxide Monitor & Controller (Relay Function) w/ Remote Sensor for Home, Office, Hospital (OEM Packaging Available)
$93.90 - $108.90
Shipping to be negotiated
Min. Order: 1 piece
NEW Carbon Dioxide Monitor CO2 Controller w/ 4.6 Meters Dual Beam NDIR, Day Night Detector Sensor For Greenhouse, Mushrooms
$93.90 - $108.90
Shipping: $37.30/set
Min. Order: 1 set
90 sold
Add to cart
pH / EC / Temperature Meter ATC 3 in 1 Waterproof Combo Multi-Parameter Tester Pool Spa Drinking Purity
$15.80 - $17.83
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Digital Non-Invasive Inductive LED 4-in-1 Tester Wood Drywall Masonry Moisture Meter
$15.71 - $17.80
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
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