The Furuno FE 800 echo sounder displays the clearance below the ship in dual frequency operation when interfaced with two transducers. The Furuno FE 800 is a result of Furuno’s many decades of experience developing echo sounders, sonars, and underwater application equipment and systems. The basic system consists of a display unit and distribution box. The 8.4″ high-brightness color LCD display offers an easy-to-read depth sounding in various modes, permitting optimum representation with respect to the environment.