SWZ型周記水位計
記錄時間：8天
浮筒直徑：200mm
水位變幅：10m
誤    差：≤±1cm
用    途：用於自動記錄江河、湖泊、水庫涵閘及潮汐的水位變化過程，每周換紙一卷. 
Running time: 8 days
Diameter of float: 200mm
Stage fluctuation: 10m
Error: ≤±1cm
Application: It is used for long term automatically records of the water level change process of the river、 lake、  reservoir and etc.