Power packed 4” fishfinder/chartplotter with all of the same great features that make the Lowrance HDI the number one choice amongst kayak anglers. Both Broadband and DownScan Imaging technology can be used simultaneously for pin point accuracy underwater and detailed mapping with TrackBack to maintain position above water. Sealed and waterproof, ideal for all bodies of water. Built in GPS is compatible with Insight Genesis sonar data recorder and all Lowrance mapping options for customized contour maps, downloadable onto any computer. Comes with an 83/200kHz + 455/800kHz HDI transducer standard.