Garmin 010-01305-03 GPSMAP 7608xsv Chartplotter/Sonar Combo 8-inch multi-touch widescreen display (1024 x 600 WSVGA) preloaded with both Blue Chart g2 U.S. coastal and LakeVu HD maps Built-in dual CHIRP sonar plus CHIRP DownVu and CHIRP SideVu scanning sonar with the clearest images on the water (transducer sold separately) High-sensitivity internal 10 Hz GPS/GLONASS Fully network capable for Garmin Marine Network and NMEA 2000, plus NMEA 0183 support Supports GSD 26 professional sonar module