Garmin GPS 19x HVS -
Highly accurate WAAS-capable 32-channel position receiver provides enhanced position, heading and speed accuracy, for smoother drawing of your position on the chartplotter screen, especially at high speeds. Data is refreshed up to five times faster than previous sensors, up to 10Hz position, velocity and time data, via NMEA 2000 or NMEA 0183. Can support multiple GNSS Systems (GPS, GLONASS, Galileo*, QZSS*). Can be pole mounted or flush mounted.