Experience an advanced All-In-One solution with our 12? GPSMAP 1242xsv keyed combo. It has built-in support for Garmin CHIRP sonar and CHIRP ClearVu and CHIRP SideVu sonars. It also has built-in support for Panoptix all-seeing sonar and premium Garmin sonar modules (transducers sold separately). Features include a large, bright screen coupled with a quick and easy-to-use keypad interface with user-programmable keys and a multifunction control knob. Right out of the box, you have access to some amazing sonar capabilities; all you have to add are transducers. GPSMAP 1242xsv comes with built-in Garmin 1 kW CHIRP sonar along with CHIRP ClearVu and CHIRP SideVu scanning sonars. It even supports Panoptix all-seeing sonar, premium Garmin sonar modules and a wide range of transducers (sold separately). Networked combos can share their internal sonar with any other device on the network. You can also choose what information is overlaid on the sonar screen; for example, radar, time of day or GPS speed. GPSMAP 1242xsv is preloaded with exceptional Garmin Cartography. LakeVu g3 inland maps and BlueChart g3 coastal charts provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics data and Auto Guidance technology. LakeVu g3 and BlueChart g3 include Auto Guidance, which uses your desired depth and overhead clearance to calculate routes and provide a suggested path to follow. LakeVu g3 provides coverage on more than 17,000 lakes with up to 1? contours. BlueChart g3 also includes NOAA raster cartography, available as a free downloadable feature via the ActiveCaptain app. Enjoy built-in ANT wireless connectivity directly to our Quatix marine watches, Garmin Nautix in-view display, gWind Wireless 2 transducer, GNX Wind marine instrument and wireless remote controls. You can even stream and control a VIRB action camera from the chartplotter.