Garmin GPSMAP 521s w/dual frequency transducer

Garmin GPSMAP 521s w/dual frequency transducer

Large, ultra-bright 5″ diagonal qvga display; 234 x 320 pixelsmore than 800 nits of brightness; nmea 2000 certified for seamless integration with the garmin marine lineup; preloaded worldwide marine basemap; compatible with gxm 51 for xm radio and xm wx satellite weather; built-in high-sensitivity gps receiver; high-speed processor for fast screen redraws & smooth panning; secure digital card slot for bluechart g2 vision cards, as well as saving waypoints, routes & tracks to a secure digital card; optional bluechart g2 vision cards provide marine chart detail & enhanced navigation features like auto guidance, satellite imagery, 3-d mariners eye view & 3-d fish eye view; backlit keypad for easy operation in low light conditions; power output: 500w (rms), 4000w (peak to peak), dual frequency; depth: 1,500 ft/ 500 m (dual frequency); uses a dual frequency transducer 50 khz (45), 200 khz (10) for maximum saltwater performance; patented transom/trolling mount transducer; ultrascroll high r…