Humminbird Helix 7 Chirp Gps G3 Fishfinder

7", 800 x 480 color screen Ultrawide display Dual Spectrum CHIRP sonar, powered by proprietary Low Q CHIRP transducer, shows long, well-defined fish arches, clear view of fish-holding structure & the bottom as well as 2 ways to search--wide mode for max coverage & narrow mode for max detail SwitchFire(R) sonar with Clear & Max modes to add or remove detail, account for water depth, temperature & turbulence Internal, precision GPS AutoChart(R) Live creates real-time detailed maps with depth, vegetation & bottom hardness with 8 hours of built-in recording time Built-in Humminbird(R) Basemap for clear view of underwater terrain & surrounding, shows buoys, day markers, hazards, marinas, contours, depth markers & charts of 10,000+ lakes & US coastal coverage microSD(TM) Card slot LakeMaster(R) & LakeMaster(R) Plus compatible SmartStrike(TM) map card compatible AIS transceiver compatible Autopilot(TM) compatible Includes transducer, mounting hardware, powe