Description Easy to UseWhen testing liquids, you just need to look at the numbers on the meters digital display, and you can know the TDS PH EC water temperature reading in 5 seconds, without compare with the test paper, which is more efficient and faster. TDS and EC testers measure total dissolved solids (TDS), electrical conductivity (EC) and temperature.Automatic humanized designAutomatic temperature compensation automatically takes into account temperature changes (0~80 degrees). The pH meter does not need to adjust the screwdriver, just use the automatic calibration button to complete the calibration, and comes with a buffer powder.[High precision] The digital range of the PH meter is 0.00 to 14.00 (PH), while the digital range of the EC and TDS digital meters is 0 to 9990 ppm. pH resolution 0.01pH, Accuracy 0.05pH.TDS: 0~9990ppm, Conductivity: 0~9990us/cm, Accuracy: 2%.[Wide Applications] Water Quality Tester ideal for drinking water, aquariums, fishing, swimming pools, RO systems, spas or hydroponics, student labs, tap water and any other liquid.