ST60 Plus Tridata features include: Depth performance from 2.6 feet to 600 feet 0.8 to 180m. Adjustable display response. 3 line display with high contrast and wide viewing angle. Transducer, keel or waterline offset. Current, maximum and average speed displays. Speed performance from 0 to 60 knots. Log range from 0 to 99,999 nautical miles. Trip range from 0 to 999 nautical miles. Temperature range from -10 degree celcius to plus 40 degree celcius. Standard surface mount kit included, optional flush or bracket mounts available. Intuitive 4 button control layout. Expandable Sea Talk networking technology enables connection to Ray marine autopilots, multifunction displays, radars, chart plotters and fish finders. Compatible with the wireless Smart Controller autopilot control and instrument repeater.