Humminbird HELIX 12 CHIRP SI+ GPS G4N Fishfinder | 4Boats

The Humminbird HELIX 30.5 cm (12 in) CHIRP SI+ GPS G4N combines MEGA Side/Down Imaging+, Dual Spectrum CHIRP and integrated GPS for high‑resolution sonar, mapping and networked boat control.

• Keypad control — Master HELIX at the touch of a button; access the preloaded view menus from the user interface.
• MEGA Side Imaging+ — crystal‑clear side imaging to 61 m (200 ft) per side with up to +20% more detail and up to +60% greater range versus MEGA SI.
• MEGA Down Imaging+ — down imaging to 61 m (200 ft) with improved detail (+20%) and extended depth capability (+60%) versus MEGA DI.
• Dual Spectrum CHIRP sonar — Low‑Q transducer with Wide and Narrow modes for detailed fish arches, superior target separation and clearer structure return.
• Internal GPS & Humminbird Basemap — enhanced basemap with contours, buoys and hazards; includes 10,000+ lakes and continental U.S. coastal charts.
• Premium chart compatible — supports LakeMaster®, CoastMaster™ and Navionics® charts for advanced mapping and route planning.
• AutoChart Live — create real‑time maps of depth contours, bottom hardness and vegetation; 8 hours built‑in recording with SD‑card expansion for extended mapping capacity.
• One‑Boat Network & Ethernet — integrates with Minn Kota motors, Cannon downriggers and Humminbird CHIRP Radar via high‑speed Ethernet for seamless networked boat control.
• Connectivity — Bluetooth control and NMEA 2000 networking built‑in for easy accessory integration and wireless control from compatible devices.