Photo 1 of 5-in-1 Water Quality Meter, PH EC CF TDS Temperature Multi-Parameter Water Quality Monitor with Backlight, Wall-mountable & Rechargeable, Water Quality Tester for Aquariums, Hydroponics, Lab

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Photo 1 of 5-in-1 Water Quality Meter, PH EC CF TDS Temperature Multi-Parameter Water Quality Monitor with Backlight, Wall-mountable & Rechargeable, Water Quality Tester for Aquariums, Hydroponics, Lab