1.This is a digital TDS meter tester to test the filter water quality purity, to check the performance of your water filter, to check for hardness to make sure you always drink pure water.Saves measurements for convenient reading and recording New Arrival 2.Auto-off function: turns off meter after 5 minutes of non-use to conserve batteries 3.Automatic temperature compensation 4.Shift between TDS and conductivity 5.Can be used in : Water purifiers and filters, food(vegetable, fruit)& drink quality monitoring, pools and spas, aquarium, hydroponics
