Raymarine i40 speed system

Compact in size and design, yet big on performance and features, i40 Speed offers all the essential speed data in clear 28mm sized digit displays. Current, Maximum and Average Speed are displayed in either knots, miles per hour, or kilometers pre hour. Log and trip information is presented in nautical miles, statute miles or kilometers. Water temperature data is displayed in either degrees Celsius or Fahrenheit. Speed from 0.4 to 99 knots (also in miles and kilometers), average and maximum speeds, total distances (0 to 99,999 nm) and daily distances (0 to 999 nm). Water temperature from -10°C to 40°C.