HIGH QUALITY DURABLE: It is highly accurate for 0-14 PH measuring range, 0.01 PH resolution, working temperature: 0~60; Measures and displays pH result simultaneously with LCD display, reliable and fast reading.Quick and accurate readings: just turn it on, dip in liquid display and read, no need work with color charts or test strips; a large LCD screen makes it easy to read.Precise: this meter obtains the result quickly and precisely, the resolution is 0.01 and with high precision (0.01), measures full pH 0-14! WIDE USE: Pocket Size PH Meter is the ideal test kit for home and laboratory use. Ideal use for testing water, swimming pools, aquariums, spas, hydroponics, food, wine and beer making and more.Auto Calibration: No screwdriver required adjustment, just complete the calibration with the automatic calibration button and includes buffer powders.