[ACCURATE AND WIDELY USED] Ideal for residential or commercial use, drinking, swimming pools, aquariums, liquid food, laboratory, aquaculture and hydroponics, you can test any liquid from 0.00-14.00 pH you want test and get readings almost instantly. [AUTOMATIC TEMPERATURE COMPENSATION (ATC)] Thanks to the built-in automatic temperature compensation (ATC), which can accurately determine the pH value of the sample at any temperature within the range of 0°C - 80°C (32°F - 176°F), you can get the precise pH value without worrying about the influence of water temperature. [CALIBRATION [EASY AUTOMATIC] It has an automatic calibration function that can be adjusted according to temperature and water quality. Calibrate the tester with a "CAL" touch button using the calibration buffer powder. [CONVENIENT AND QUICK] Remove the protective cap, dip the pH tester electrode into the solution, press on the button to be measured and you can get readings almost instantly. [PERFECT ACCESSORIES] Comes