TDS-3 Handheld Digital LCD Water Quality Tester Pen Temp/PPM Filter Water Purity Meter ScreenShare: Miracast(Android 4

ScreenShare: Miracast(Android 4

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TDS-3 Handheld Digital LCD Water Quality Tester Pen Temp/PPM Filter Water Purity Meter ScreenShare: Miracast(Android 4Product Features: What is TDS: Total dissolved solids are the total weight of all solids(minerals, salts, metals, etc) that is dissolved in a given volume of water, express in milligrams per liter(mg L), or in parts per million(ppm). Use the TDS meter to: Check the performance of your water filter. Check the hardness. Make sure you always drink pure water. Hold function: Saves measurements for convenient reading Auto off function: Turn off meter after