This is a portable water level meter (or dip meter) with a graduated measuring tape on a wheeled reel.OverviewDevice Type: Portable groundwater and borehole measuring tool.Components: Features an orange spool reel, yellow/orange marked flat cable/tape, a collapsible wheeled cart with an extended handle, and a probe rest.Common Uses: Measuring water depth and levels in wells, boreholes, standpipes, and industrial tanks.