【4 in 1 Electronic Tester & Quick Measurement】This pH meter is designed in a 4-in-1 format to test the quality of liquids. It only takes 5 seconds to know the pH, quality, EC and temperature of the water. 【Easy & Accuracy ± 0.01pH】 Simply remove the cap and immerse the electrode in water. Then you will know all the data. The resolution of PH is 0 - 14PH, with an accuracy of ±0.01PH. The resolution of TDS meter is 1 - 19999 ppm, accuracy: ±2% FS. The resolution of EC tester is 1-19999 μS/cm; 0.1 mS/cm. The temperature measurement range is 0.1 - 60 °C, accuracy: ±0.5 °C. 【Professional Tester】The electronic pH meter has sensitive dual electrode sensors and a high-quality titanium probe for accurate readings of water quality levels. Equipped with reliable automatic temperature compensation to ensure accurate readings at different temperatures every time. And it adopts backlight, which makes the data display much clearer. You can see the data easily even in a dark environment. 【Automatic