日记水位计 地下水位变化记录仪 型号:WH/SW40 记录时间:24小时 浮筒直径:70mm或100mm 水位变幅:10m 误 差:≤±2cm 用 途:主要用于地震预报,监测记录地下水位变化过程. Running time: 24 hours Diameter of float: 70mm or 100mm Stage fluctuation: 10m Error: ≤±2cm Application: It is used for records of the water level change process of the earthquake prediction and underground water