YFDGD Water Tester Digital Water Quality Tester TDS/EC/TEMP Multifunctional Purity Temperature TEMP PPM Multipurpose Accurate Easy
YFDGD Water Tester Digital FH-77 Dissolve Hydrogen Meter ATC Ion Water Quality Tester 0-1999 Ppb/0-1.99 Ppm For Drinking Food Multipurpose Accurate Easy
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YFDGD Water Tester Digital PH Meter Tester Temperature Pen Water Purity PPM Filter Hydroponic For Aquarium Swimming Pool Monitor 0-14 Multipurpose Accurate Easy(Yellow NO BOX)
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YFDGD Water Tester Digital Water Quality Tester TDS EC Meter Range 0 To 9990 Multifunctional Purity Temperature TEMP PPM Multipurpose Accurate Easy(White+blue backlight)
