Garmin GPSMAP 1242xsv Combo GPS/Fishfinder GN+ [010-01741-50]GPSMAP 1242xsv Combo GPS Fishfinder GN+ You're a cruiser or sailor who prefers a keypad and wants built in sonar and mapping. You need this all in one 12" chartplotter to guide the way. Experience an advanced all in one solution with our 12 GPSMAP 1242xsv keyed combo. It features a large, bright screen coupled with a keypad interface and multifunction control knob. It comes with built in support for Garmin CHIRP sonar along with CHIRP ClearV and CHIRP