Unlike an electromagnetic speed log or other type, this equipment does not require a sensor protruding through the ship hull; this greatly reduces the routine maintenance. Another special feature is the capability to measure own ship speeds at dead slow movement with high accuracy. The pair-beams at 1 MHz sonic frequency ensure accuracy in rough water.
The primary functions of the DS80 operate without any interaction. Simply keep the power switch on. The user-friendly menu ensures easy adjustment of all functions. Auxiliary functions such as resetting the Distance Run and speed offset are easy using the menu.
Optional analog and digital remote displays are available to enhance the convenience of navigation. A new transducer was designed with the same dimensions as the DS70 transducer. It may be fitted to the hull directly or with a gate valve.