GPSMAP 741 allows for easy visibility, day or night. Whether it is flat, flush or gimble-mounted, it will be the focal point of your helm. It has media integration and autopilot compatibility, radar support, and NMEA 2000 and wireless connectivity. With the integration of a 10 Hz GPS/GLONASS receiver, the 741 refreshes position and heading up to 10 times per second. It displays constant and fluid on-screen location and proves to be incredibly accurate when marking and navigating to any one of 5,000 user-created waypoints