HIGH QUALITY&DURABLE: It is high precision for 0-14 PH measurement range, 0.01 PH resolution, working temperature: 0°C~60°C; Measures and displays the pH result simultaneously with the LCD display, reliable and quick reading. Fast and accurate reading: just turn it on, dip in the display liquid and read, no need to mess with color charts or test strips work ; A large LCD display makes it easy to read. Accurate: This meter provides the result quickly and accurately, the resolution is 0.01 and measures the full pH value of 0 with high accuracy (0.01). -14! WIDE USE: The pocket-sized pH meter is the ideal test kit for home and laboratory use. Ideal for testing water, pools, aquariums, spas, hydroponics, food, wine and beer making and more. Auto Calibration: requires no adjustment screwdriver, just complete the calibration with the auto calibration button and includes buffer powder .