【5 in 1 Water Quality Test】The pH meter is designed with 5 in 1 function, which can simultaneously measure PH, TDS, EC, salinity and temperature with high accuracy. Omnidirectional water quality measurement to ensure the health of water quality. 【Accurate Measurement】: In order to achieve high accuracy, it is equipped with a high-quality titanium alloy probe and reliable automatic temperature compensation (ATC), which can ensure accurate readings at different temperatures. When the measured value is stable, long press the HOLD/TEMP button to lock the measured value and take it out to view, which is really easy. 【Auto-off Function and Large Screen】The PH tester has a backlit LCD screen that allows you to clearly see the measurement in any case. The automatic shut-off function turns off the device after 5 minutes of inactivity to save energy. Uses a fully transparent liquid crystal display (LCD) to display 4-digit values and their corresponding physical units of measurement. 【IP67