GAIN EXPRESS HOLDINGS LIMITED
HK
13
YRS
Main categories: industrial Endoscope,PH meter,Refractometer,Fish Finder,Lux Meter
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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
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Multimeters / Clamp Meters
Measuring Instruments
OEM Products
Ozone Generator
Refractometers
Tension Tester
Water Level Alarm
Weather Station
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CO2 Carbon Dioxide Monitor & Controller (Relay Function) w/ Remote Sensor for Home, Office, Hospital (OEM Packaging Available)
$93.90 - $108.90
(Min. Order) 1 piece
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
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
21 orders
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
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
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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
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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
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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
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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
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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
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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
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