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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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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
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Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Aquarium, Pond, Hydroponic
$21.05 - $23.76
Shipping: $31.80/piece
Min. Order: 1 piece
Add to cart
PH & Temperature 2-in-1 Continuous Monitor Meter w/ Backlight Dual Display 0.00~14.00pH degC/ degF for Aquariums Hydroponics
$18.35 - $20.71
Shipping: $28.00/piece
Min. Order: 1 piece
Add to cart
Digital 3-in-1 pH, EC & TDS Conductivity Monitor w/ 3.5" Large Dual Display, for Aquaculture, Aquarium, Pond, Hydroponics
$49.90 - $57.80
Shipping to be negotiated
Min. Order: 15 pieces
3-in-1 pH, EC & TDS Conductivity Monitor Water Quality Meter for Aquaculture, Aquarium, Hydroponics(OEM Packaging Available)
$49.90 - $57.80
Shipping to be negotiated
Min. Order: 15 sets
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
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
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
6-in-1 Pen type pH Water Quality Meter Temperature Conductivity ORP TDS Salinity Tester with ORP probe(OEM packaging available)
$97.56 - $108.11
Shipping: $31.80/set
Min. Order: 1 set
1 sold
Add to cart
Portable pH Controller Meter Tester with optional HI LO Action and Replaceable Electrode(OEM Packaging Service Available)
$44.40
Shipping to be negotiated
Min. Order: 10 sets
Digital pH and Temperature Meter degree C / degree F 0-14 pH Range with 2-Liner Waterproof (OEM Packaging Available)
$21.35 - $23.84
Shipping to be negotiated
Min. Order: 50 sets
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
6 in 1 Multi-parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter Water Quality Meter (OEM Packaging Available)
$58.89
Shipping to be negotiated
Min. Order: 5 sets
Digital 2-in-1 pH TDS Monitor Aquarium Pool Hydroponic Water Quality Tester Replaceable pH Electrode (OEM Packaging Available)
$18.64 - $21.04
Shipping: $28.00/set
Min. Order: 1 set
Add to cart
2-in-1 pH TDS Digital Monitor Aquarium Pool Hydroponic Spa Water Quality Tester Tool Replaceable pH Electrode
$18.64 - $21.04
Shipping: $28.00/piece
Min. Order: 1 piece
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
Digital pH Meter Water Quality Tester + Adaptor + 2 Free Buffer Solutions 1M cable (OEM Packaging Available)
$17.40
Shipping to be negotiated
Min. Order: 20 sets
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