General description Fast and accurate readings - just turn it on, dip it in liquid, and get the reading without having to mess with color charts or test strips. The large digital display makes it easy to read. This Digital pH Meter features an automatic calibration function, ensuring precise measurements across a range of 0.00-14.00 pH. Its portable design, complete with a compact pen pouch and carrying case, allows you to take it anywhere. Technical specifications Measuring range: 0.0-14.0 pH Resolution: 0.1 pH Accuracy: ± 0.1 pH Automatic temperature compensation: -55°C ~ 0°C Power supply: 3 x 1.5V (AG-13 button cell battery type) Ambient temperature: 0 ~ 50 °C Relative humidity: