Model number: Checker 1 Accuracy: ±0.2pH Operating temperature range: 0 to 50°C Calibration: Manually 2-point calibration Battery: 2x LR44 button batteries Size: Main unit/50 x 66 x 25mm, electrodes/φ8 x 100mm Body weight: Approximately 70g A large LCD display that is easy阅读。 测量范围(pH):0至14 分辨率(pH):0.1