Humminbird RA51167 Helix 7 Chirp Mega Di Gps G3 Fishfinder Hum4109401

7&#34<br>, 800 x 480 color screen<br> MEGA Down Imaging(TM) with 3x more output than standard Down Imaging(R) for underwater clarity with coverage down to 125ft below the boat<br> 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<br> SwitchFire(R) sonar with Clear & Max modes to add or remove detail, account for water depth, temperature & turbulence<br> Internal, precision GPS<br> AutoChart(R) Live creates real-time detailed maps with depth, vegetation & bottom hardness with 8 hours of built-in recording time<br> 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<br> microSD(TM) Card slot<br> LakeMaster(R) & LakeMaster(R) Plus compatible<br> SmartStrike(TM) map card compatible<br> AIS transceiver compatible<br> Autopilot(TM) compatible<br> Includes transducer, mounting hardware, power cable & gimbal mounting bracket<br>