PH-08 Waterproof Pen-Type Soil pH Meter PH-08 Waterproof Pen-Type Soil pH Meter Two-point button calibration, automatically recognizes pH standard buffer solutions. Automatic temperature compensation ensures accurate measurements across the full range. Automatic power-off effectively saves battery energy. Replaceable electrode reduces maintenance and usage costs. Fully waterproof design provides complete protection for the meter in harsh environments. Suitable for soil, dough, etc. Powered by two large-capacity AAA batteries. Technical Parameters: Model PH-08 Measuring Range pH 0.00–14.00 pH Temp 0–50°C Resolution pH 0.01 pH Temp 0.1°C Accuracy pH ±0.02 pH Temp ±1°C Automatic Temperature Compensation 0°C–50°C Battery 2×1.5V (AAA Batteries) Operating Temperature 0°C–50°C Calibration Method Automatic 2-point calibration Dimensions 210×40×25 mm Weight 97g