Garmin 010-01379-03 GPSMAP 7607xsv Chartplotter/Sonar Combo 7-inch multi-touch widescreen display (800 x 480 WVGA) 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