Easy to Use Remove the protective cap and turn on the pH meter by pressing the "ON/OFF" button, immerse the electrode in the test solution to be tested, stir gently, and wait for the reading to stabilize. When finished, clean the electrode with distilled water, turn off the pH meter, and replace the protective cap. High Accuracy PH Meter The PH meter uses a sensitive glass bulb electrode sensor that can quickly and clearly read accurate PH values within the measuring range of 0-14.0. This accurate pH tester kit (0.01 resolution) is so accurate that it can accurately test a pH of 0.02 Automatic Calibration The pH meter has an automatic calibration function that can be adjusted according to the temperature and water quality, and the PH reading can be obtained by waiting for a few seconds during the test. In addition, you can calibrate the tester with the one-touch "CAL" button using the calibration buffer powder. Automatic Temperature Compensation The product provides comprehensive pH 0-14 measurements with temperature compensation which will make the result more accurate. The temperature of the test liquid can range from 0C to 60C (32F to 140F). Wild Application Easily fits in your pocket or bag and goes anywhere. The pH meter is an ideal option for families and laboratory testing of pH value, which is suitable for testing the pH balance of drinking water, swimming pool, aquarium, RO system, spa or hydroponics; Suitable for a wide range of applications. Number of pieces delivered: 1 Color: Blue Size: 31*155mm Welcome to meet