Humminbird 410940-1NAV HELIX 7 CHIRP MEGA DI GPS G3 Nav+ Fishfinder

7, 800 x 480 color screen; Preloaded Navionics(R)+ (US & Canada) map information for out-of-the-box coverage of over 21,000 lakes & water bodies; MEGA Down Imaging(TM) with 3x more output than standard Down Imaging(R) for underwater clarity with coverage down to 125ft below the boat; 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; High-speed Ethernet allows for a powerful, professional-grade fishing system; 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, Navionics(R)+ map card, mounting hardware, power cable & gimbal mounting bracket;