MAKE YOU SATISFIED WITH THE PRODUCTS: Use scientific, high-precision AD conversion technology to accurately test the PH value of water quality to ensure accurate water quality testing. Don't worry about water quality issues, Ensure that you and your family can drink healthy WIDELY USED: It is suitable for domestic drinking water, food, wine, swimming pool, food brewing, camping, laboratory testing, aquarium maintenance, hydroponic nutrition, animal husbandry and other places HIGH PRECISION:The PH tester has a sensitive electrode sensor. Just press "ON", and the result can be displayed on the screen in a few seconds. Read the accurate pH value. It can accurately test the pH quality of any water you want to test, including water quality adjustment, so that you have a perfect pH balance AUTOMATIC TEMPERATURE COMPENSATION: Because the PH meter has a built-in (ATC) automatic temperature compensation function, it can accurately determine the pH value of the sample at any temperature, so there is no need to care about the temperature of the liquid being measured. The temperature range is 0C-60C SATISFACTION:Our PH meter is only 50 grams, the size is 1.55 * 0.31 * 0.18cm, so no matter where you are doing the PH test, it can be put in your pocket and is convenient to carry when you go out. It can be used in any place and is the best choice as a gift for children and the elderly.