Specification:

The water level indicators (electric contact meters) are portable, easy-to-use and reliable instruments for measuring water level and total depth in bore holes, wells, observation pipes, reservoirs, as well as control of pumping tests. As soon as the measuring probe electrode touches the water surface, the signal indicator on the instrument lights up with an audible alarm. The water level can be read on the measuring tape in meters (m) and centimeters (cm).
Water level indicator 50 m cable length
Water level indicator 100 m cable length
Water level indicator 150 m cable length
Water level indicator 200 m cable length