Explore the deep blue with the Humminbird Helix 12 Chirp Mega DI+ GPS G4N CHO Chartplotter. The MEGA down imaging+ provides up to 200 feet of underwater visuals, and the 12.1-inch display with keypad controls allows you to maneuver through terrain and sea life with your fish finder. The Autochart live technology delivers current maps detailing depth contours, bottom harness, vegetations and more with 8 hours of recording space for hours of discovery, and the internal GPS and Humminbird Basemap ensures a high-quality fishing experience by providing clear underwater imaging of fish surroundings.