KL-081 Pen-type pH/Temperature Meter Main Technical Specifications Measuring Range 0.00~14.00pH 0°C~55°C Accuracy ±0.1pH ±1°C Resolution 0.01pH 0.1°C Operating Temperature 0°C~50°C Automatic Temperature Compensation 0°C~50°C Battery 4×1.5V (AG13) Dimensions 175mm×41mm×23mm Weight 98g