GARMIN GPSMAP 210 Chartplotter Marine GPS Navigator NMEA0183 RS-232 BoatGARMIN GPSMAP 210 Chartplotter Marine GPS Navigator NMEA0183 RS 232 In perfect working condition with warranty. The GPSMAP 210 takes the power of Garmin GPS and puts it to work in a world class chartplotter. Two data processors for fast, smooth screen movement, sharp graphics, and cartography capability make the GPSMAP 210 a valuable addition to the bridge. Packed with navigation features such as 30 routes, 500 waypoints, a course correction display,