Product Description Humminbird Helix 12 SI Sonar GPS Combo
12.1" screen with 1,280 x 800 resolution and 1,500 nit brightness
CHIRP sonar scans entire frequency range for exceptional clarity
Side Imaging produces a 480-ft.-wide view off the sides of your boat
Down Imaging delivers exceptional detail of submerged structure
AutoChart Live marks waypoints on structure and contours
SwitchFire Sonar detects even the slightest returns
Internal GPS lets you store up to 2,500 waypoints and 47 routes
1,500-ft. depth range can be increased to 3,000 ft.
Humminbird's Helix 12 SI Sonar/GPS Combo features an impressive suite of technologies to detect fish and structure so you can maximize efficiency during your time on the water. Side Imaging® scans 240 ft. on each side of the boat for a 480-ft.-wide perspective, while Down Imaging® reveals details of submerged structure down to 350 ft. Full-Spectrum CHIRP sonar sweeps the entire range of frequencies to deliver exceptional target separation whether the fish are feeding near the surface or resting on the bottom. 12.1" screen is lit in 1,500 nit brightness and boasts a 1,280 x 800 resolution so it's easy to read at a glance. AutoChart® Live marks waypoints onto underwater structure and contours to transform unknown waters into detailed maps that you can keep or share. SwitchFire® Sonar detects even the slightest returns. Internal precision GPS lets you locate and store up to 2,500 waypoints and 47 routes. Includes Humminbird ContourXD Mapping and accommodates Humminbird® LakeMaster® and LakeMaster® PLUS and Navionics® Gold and Platinum + maps. Compatible with Ethernet networking, Humminbird® RADAR, Auto Pilot, 360° Imaging®/i-Pilot® Link™ by Minn Kota®. 500 watts RMS with 4,000 watts peak-to-peak can be increased to 1,000 watts RMS and 8,000 peak to peak with a 1Kw transducer (not included). 1,500-ft. depth range can be increased to 3,000 ft. with 1Kw transducer. Includes the standard Dual/HD Down Imaging/Side Imaging transducer which is capable of CHIRP once the feature is turned on in the unit. An optional CHIRP transducer is required In order to obtain the full CHIRP frequency range (28 kHz to 250 kHz).