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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
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
3-in-1 Automotive Antifreeze Refractometer 1.100 - 1.400kg/l System Coolant Freezing Point (OEM Packaging Available)
$9.05 - $10.88
(Min. Order) 1 set
pH Meter / Monitor
All products
Water Quality Meters
pH Meter / Monitor
Customizable
Ready to Ship
PH ORP Controller with Monitoring and Dosing pH Meter Redox Temp Tester Wireless App Remote Online Monitor
$46.54 - $51.71
Shipping: $19.89/piece
Min. Order: 5 pieces
Add to cart
6-in-1 Smart Water Quality Meter pH / EC / TDS / Salinity / SG / Temperature with Easy Calibration 24Hrs Online APP Monitoring
$29.76 - $33.59
Shipping: $16.14/piece
Min. Order: 5 pieces
Add to cart
Digital Pentype pH Meter 7-in-1 PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter for Drinking Water, Aquariums, Pool
$15.02 - $16.95
Shipping: $6.36/piece
Min. Order: 5 pieces
Add to cart
GAINEXPRESS 8-in-1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester
$41.52 - $46.14
Shipping: $14.95/piece
Min. Order: 5 pieces
Add to cart
Smart Mini WIFI 5-in-1 Water Quality Tester pH/TDS/SALT/S.G. & Temp Meter TUYA Smart App for Aquarium Hydroponics Pool Aqua
$25.22 - $28.46
Shipping: $11.34/piece
Min. Order: 5 pieces
Add to cart
0-14pH Digital Handheld pH meter Tester Spa Aquarium Hydroponic Pool with ATC
$5.91
Shipping to be negotiated
Min. Order: 100 pieces
PHM-300 Water Quality Pentype pH Meter 0.01pH Accuracy Liquid Acidity Tester for Aquarium, Spa, Laboratory, Household Water
$3.99
Shipping to be negotiated
Min. Order: 20 pieces
Pen-Type pH Meter Water Quality Tester with Backlight Digital and Portable
$2.38 - $2.64
Shipping to be negotiated
Min. Order: 1 piece
pH Digital Portable High Accuracy Pen-Type Meter Water Quality Tester with Automatic Calibration
$2.55 - $2.82
Shipping to be negotiated
Min. Order: 1 piece
Pentype Digital PH & Temperature 0.00-14.00 pH Range Water Quality Meter Kit W/ ATC for Lab, Spas, Pool
$13.30
Shipping to be negotiated
Min. Order: 10 pieces
Digital Pen-type PH Meter 0.00 - 14.00 pH Range Lightweight Compact W/ ATC for Hydroponics, Aquariums, Swimming Pools, Spas, Etc
$7.60 - $9.00
Shipping to be negotiated
Min. Order: 40 pieces
Digital pH Monitor Tester W/ Rechargeable Meter Adapter 0.00~14.00 pH Range + Waterproof BNC Replaceable Electrode for Pool, Spa
$20.10 - $23.00
Shipping to be negotiated
Min. Order: 5 pieces
Waterproof pH Meter 0~14 Temperature Thermometer Aquarium Pool Water Quality Tester Replaceable Electrode
$15.50 - $17.80
Shipping to be negotiated
Min. Order: 20 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
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Digital Pen-size pH Meter 0-14pH Range w/ ATC, IP65 Waterproof Big LCD Screen Automatic Calibration
$19.46
Shipping to be negotiated
Min. Order: 100 pieces
Handheld pH Hydroponic Dipstick Meter Tester Waterproof w/ ATC + Built in ATC 2.1~10.8pH Range
$18.02
Shipping: $5.07/piece
Min. Order: 10 pieces
Add to cart
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