HIGH QUALITY AND DURABLE: It is highly accurate for a pH measuring range of 0 to 14, with a resolution of 0.01 pH. Operating temperature: 0℃~60℃. It measures and displays the pH result simultaneously on the LCD screen, providing reliable and fast readings. Fast and accurate readings: Just turn it on, immerse it in the liquid display, and read. No need to work with color charts or test strips. A large LCD screen makes reading easy. Accurate: This pH meter provides fast and accurate results with a resolution of 0.01 pH and high precision (0.01). It provides comprehensive pH measurements from 0 to 14! WIDELY USED: The pocket meter is the ideal test kit for home and laboratory use. Ideal for testing water, swimming pools, aquariums, spas, hydroponics, and food production. Wine, beer, and more. Automatic calibration: no adjustment screwdriver required. Just complete the calibration with the auto-calibration button. Includes buffer powder.