Humminbird HELIX9 SI Sonar GPS

Humminbird Helix 9 SI 480 X 800 9"" WVGA Display, Side Imaging, Sonar w/Dual Beam, GPS Model: 409950-1 UPC: 082324047350 360 Imaging - We have you surrounded. 360 Imaging allows you to isolate your sweep, see 5 preset views or see all around you Side Imaging Sonar -- Gain a 180° side to side perspective on the world below the surface. Down Imaging Sonar -- Get a fish-eye's view of what's happening below your boat. Incredible images are created with High-frequency sound waves. SwitchFire Sonar -- Take command of how your sonar returns appear with our Clear and Max Modes. Two beams combine for great detail and a wide coverage area. Use the narrow beam for high-accuracy returns and bottom. Use the wide beam when you want a larger search area. GPS antenna built into the head unit Up-gradable Software -- Access software updates to enhance the performance of your Humminbird unit through our My Humminbird section of the site. Dual SD Card Slots -- Use one slot for advanced cartography and th