防水型笔式PH计:Range: 0.00-14.00PH 0℃~55℃ Resolution: 0.01PH 0.1℃ Accuracy: ±0.1PH ±1℃ Automatic Temperature Compensation:0℃~50℃ Batteries: 4×1.5V(AG-13) Operating Temperature: 0℃~50℃ Dimensions:188mm×35mm×35mm Weight: 98g