Mobile handheld device for water level measurement in groundwater.The proven SEBA-KLL electric contact gauge has everything that users appreciate for daily, heavy-duty work: a robust, low-wear and therefore long-lasting ribbon cable with easily legible numbering, a smooth measuring tape drum with a locking brake and a stable aluminum frame. The threaded connection of the electric contact gauge offers its user many additional options and features in addition to contact measurement. Using an optionally available basic button, theelectic contact gauge can be used for depth sounding. For measuring points with high or very low salinity and muddy ground, special weight attachments are also available. If required, a mechanical probe jack can be connected.