[ACCURATE AND WIDELY USED] Ideal for residential or commercial use, drinking, swimming pools, aquariums, liquid foods, laboratory, aquaculture and hydroponics, you can test any liquid from 0.00-14.00 pH that you want to 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 accurate pH value without worrying about the temperature influence of water. [EASY AUTOMATIC CALIBRATION] 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, immerse the tester electrode of pH in the solution, press the button to measure and you can get readings almost instantly. [PERFECT ACCESSORIES]