【High Precision Measurement】Achieve accurate pH readings with a resolution of 0.01pH and precision of ±0.01pH across a wide range of 0.00-14.00pH. 【User-Friendly Design】Large LCD digital display ensures easy readability, while the automatic shut-off after 10 minutes of inactivity conserves battery life. 【Versatile Application】Suitable for various testing environments with an operating temperature range of 0°C-60°C. 【Convenient Calibration】Features three-point automatic calibration, with single-point calibration at 6.86 offering 0.1pH accuracy for quick checks. 【Portable and Lightweight】Compact dimensions of 155*31*18mm and a weight of only 50g make it perfect for on-the-go testing. Specifications: Measuring range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ±0.01pH Power supply: 2*1.5V (LR44 button battery), 130mAh Operating temperature: 0℃-60℃ Calibration: three-point automatic calibration (6.86 point calibration: 0.1pH accuracy) Dimensions: 155*31*18mm Weight: 50g