Garmin echoMAP CHIRP 54dv with transducer

The all-new echoMAP CHIRP dv and sv series chartplotter/sonar combos are available in 4-, 5-, 7- and 9-inch displays. The dv series offers built-in CHIRP traditional sonar and CHIRP DownVü. The sv series gives you built-in CHIRP traditional sonar, CHIRP DownVü and CHIRP SideVü scanning sonar capabilities. The internal 5 Hz GPS updates the position and heading 5 times per second. Each display size for the echoMAP combos is offered with either U.S. BlueChart g2 charts, U.S. LakeVü HD maps, Canada LakeVü HD maps or a worldwide basemap. New Garmin Quickdraw Contours software feature lets you create your own maps, with up to 1-foot contour lines, on any body of water (software available in all models).