Dual Spectrum CHIRP:With a powerful Low-Q CHIRP transducer, our Dual Spectrum CHIRP sonar provides crystal-clear returns, exceptional target separation and amazing fish arches. Can reach depths of 1,200 ft with the standard transducer or 3,500 ft (with optional 50 kHz tansducer) AutoChart Live: Create real-time maps of your fishing spots, with access to patented Humminbird? LakeMaster? features. Map depth contours, bottom hardness and vegetation as you drive your boat. Comes standard with eight (8) hours of built-in recording time and is compatible with AutoChart Zero Line SD cards for virtually-endless AutoChart Live mapping capacity Basemap Built-in with U.S. detail: Buoys, day markers, hazards, marinas, contours, depth markers & more. Charts of 10,000+ lakes, plus coastal coverage for the U.S. Premium chart compatible: Humminbird provides the most complete offering of premium chart options to anglers everywhere. Get a complete view of the world below with optional charts from Humminbird's LakeMaster? and CoastMaster? products, as well as your choice of compatible Navionics? charts Keypad Control: Master HELIX at the touch of a button. Access the preloaded views from the user-friendly menu system, operated by soft key controls, allowing you to reliably operate your fish finder in any conditions
