HOBO U20 Water Depth Loggers

The HOBO U20 Water Level data logger are easy to use, reliable and economical, they are fully sealed and measure absolute pressure and temperature. as such require atmospheric pressure data to compensate for air pressure changes. The U20 data logger is ideal for recording water levels and temperatures in bore holes, lakes, rivers, dams and tanks. Modems include;

 - U20-001-01 For measuring depths 0-9m

 - U20-001-02 For measuring depths 0-30.5m

 - U20-001-03 For measuring depths 0-76.5m

 - U20-001-04 For measuring depths 0-4m (use this model for atmospheric measurements or depths over V-notch weirs)

Note - these units require atmospheric pressure data to compensate for air pressure changes, this can be attained from a local metrelogical data observatory or from a unit used for atmospheric pressure measurements.