Ruby Digital LCD TDS Meter for RO Filter Purifier Water Quality Tester Digital TDS Meter

Highly efficient and accurate due to its advanced microprocessor technology Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Built-in digital thermometer And Display: large and easy-to-read LCD screen Instrument Easy calibration of total dissolved solids (TDS), temperature (temp) and parts per million (PPM) in home or office, pools, aquariums, ponds, fresh water sources from creeks, rivers, rain water storage, travelling. High Quality Digital LED TDS meter For Tasting Water Total Dissolved Solids