【5 in 1 Water Quality Tester】The pH meter is designed with 5 in 1 function, which can measure PH, TDS, EC, salinity and temperature with high accuracy at the same time.Comprehensive measurement of water quality to ensure healthy water quality. 【Precise measurement】: To achieve high precision, it is equipped with an alloy probe. high quality titanium 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 pull it to view, very simple. 【Auto-off function and large screen】The tester of PH has a backlit LCD display, allowing you to see the measurement results clearly in any situation. The auto-off feature turns the device off after 5 minutes of inactivity to save power. Fully transparent liquid crystals (LCD) are used to display 4-digit values ​​and their corresponding physical units of measurement. /p> 【IP67 Waterproof Rating】IP67 is the international waterproof and dustproof certification. Prevent dust intrusion, short-term soaking. 【Wide Usage】: This water quality tester is ideal for testing water, swimming pools, aquariums, spas, hydroponics, laboratories and drinking water, etc. Note: The data is manual measurement, please allow 1-116cm error, due to differences in light and screen, there will be a certain color difference, the specific received in kind prevail.