The ES 5000 from Litton Marine Systems is a type-approved marine echosounder that provides accurate depth readings in shallow to deep waters.
The ES 5000 displays a graphic readout of the depth and bottom contour on a bright, clear high-resolution LCD screen. It also shows a continuous display of other relevant navigation data, and stores the last 24 hours of data, together with position information. Serial data interfaces provide output of depth data and input of time, date and position in NMEA 0183 format.