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