AdvanSea speedometer water speed up to 111 km/h, boat speedometer, with alarm function

FUNCTIONS:

• Water speed*: 0-60 knots, 0-69 mph, 0-111 km/h.
• Ground speed when connected via NMEA0183 with the appropriate instrument.
• Total and daily log.
• Timer and countdown function.
• Water temperature.
• Speed ​​trend display with arrow.
• Maximum and minimum speed alarm.
• Battery status alarm.
• Simulation mode.
• *depending on the donor.