Garmin GPSMAP 421 GPS-Chartplotter with Internal Antenna, 4" Color Display & World Wide BaseMap; NMEA Network Compatible
GPSMAP 421 Chartplotter
Features an ultra-bright 4 QVGA display along with an improved high-speed digital design for faster map drawing and panning speeds. Plus, these waterproof units have a high-sensitivity internal GPS receiver, so mariners will always know their position at sea. They are ready to go with a built-in, satellite-enhanced worldwide basemap and Garmin's proven easy-t0-use interface designed to help you navigate the open waters with ease. Both models are compatible with various NMEA 2000 components, inculuding Garmin's full lineup of NMEA 2000 marine sensors and autopilots.
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