High quality durable: It is highly accurate for 0-14 PH measurement range, 0.01 PH resolution, Measures and displays pH result simultaneously with LCD display, reliable and fast reading. Convenient operation: Simply remove the protective cap and immerse the pH meter electrode in the solution. Turn on the pH meter using the ON/OFF switch to be measured. Shake gently until the displayed level is stable and read the displayed levels. Pocket Portable: Large LCD display makes it easy to read measurement results. Pocket size for easy transport. ATC function: Due to the variability of factors, the temperature of the test objects may have been slightly different, which may cause an inaccurate reading. ATC function can automatically compensate the temperature of test objects, avoid reading inaccuracy. Widely Applicable: Ideal for all home and laboratory pH testing applications including aquariums, swimming pools, aquariums, spas, hydroponics, food, wine and beer making, cosmetics, human urine