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Model: TDS Meter 2; Button: with 2-HOLD, ON/OF. The higher ppm value is the more substances in the water. Factory calibrated, widely apply to test
2Pcs TDS Meter Digital Water Tester Digital 0.0-14.0 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium Filter - AliExpress
Salt Water Pool Fish Pond Test Digital LCD Salinity Temp Tester Meter Pen
TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing: : Industrial & Scientific
Digital TDS Meter, Backlight Technology Convenient Reading ABS Shell TDS Meter Digital Water Quality Tester For Drinking Water For Laboratory For Aquarium
TDS Tester,TDS Meter Digital Water Tester,Water Quality Tester Filter Pen,0-9999 ppm,Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.: : Industrial & Scientific
TDS Meter Digital Water Tester TDS Meter , 0-9999 ppm Accurate PPM
PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter - AliExpress
TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More (Green): : Industrial & Scientific
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water (Blue): : Industrial & Scientific
Portable Digital Water Quality 90 ppm EC/Tds//S.G/Temperature Portable Testing Meter for Hydroponics water Pools
PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water Purity PPM Aquarium Filter - AliExpress
Digital Water Quality Purity Filter TDS Meter LCD Display TDS Tester 0-9999 PPM Temp Pen Design For Hydroponics Aquariums
uxcell 3 in 1 TDS and EC Meter PPM Conductivity Meter for Ro Water Aquarium Pool : : Industrial & Scientific
TDS Testing Pen Aquarium Fish Yank Water Hardness Meter GH/DH Test Tool
TDS Meter Digital Water Tester, Temperature Meter Tester Hydroponics 3 In 1, 0-9999 PPM Meter, Ideal Water Quality Test Meter for Drinking Water, Swimming Pools and Aquariums