The Humminbird HELIX12 CHIRP Mega SI+ GPS G4N is a control-head‑only fish finder built for serious anglers who want premium imaging, precise mapping, and seamless on‑water control. This model is a control-head unit without a transducer, giving you the flexibility to pair the transducer that best fits your boat and fishing style.
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Control-head design: Dedicated keypad control with Master HELIX at the touch of a button and a user-friendly menu with soft-key operation for reliable performance in any condition.
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MEGA imaging capabilities: MEGA Side Imaging+ provides side-to-side clarity out to 200 feet on both sides of your boat, delivering 20% more detail and 60% more range than standard MEGA Side Imaging sonar. MEGA Down Imaging+ delivers underwater clarity down to 200 feet, with 20% more detail and 60% more depth capability than MEGA Down Imaging sonar.
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Dual Spectrum CHIRP sonar: Uses a Low-Q transducer to offer two search modes: Wide Mode for maximum coverage and Narrow Mode for pinpoint detail, giving you highly-detailed fish arches and a clear view of fish-holding structure and the bottom.
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GPS & Basemap: Built-in GPS and Humminbird Basemap provide a clear view of underwater terrain and points of interest, helping you identify buoys, markers, hazards, marinas, contours, depth markers, and more.
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Premium chart compatibility: Optional LakeMaster and CoastMaster charts, plus compatibility with Navionics charts, giving you the flex to choose the map that fits your fishing grounds.
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AutoChart Live: Real-time mapping with depth contours, bottom hardness, and vegetation data; eight hours of built-in recording time and compatibility with AutoChart Zero Line SD cards for expanded mapping capacity.
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Connectivity & networking: One-Boat Network compatible integrates with Minn Kota and Cannon products; Ethernet networking enables high-speed connections to multiple fish finders and supports add-ons like Minn Kota i-Pilot Link and Humminbird CHIRP Radar for a complete, professional-grade fishing setup.
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Wireless control & updates: Bluetooth provides wireless control from the display to compatible Talon and Raptor shallow water anchors, as well as Cannon Optimum downriggers, plus wireless software updates via the Humminbird FishSmart App.
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No transducer included: This is a control-head-only unit; no transducer is included, giving you the freedom to pair the transducer that best fits your boat and fishing style.
This HELIX12 model combines advanced sonar imaging, precise mapping, and robust networking to help you locate fish, understand bottom structure, and navigate with confidence. With MEGA imaging for detailed views, AutoChart Live for real-time, customizable maps, and flexible chart options, you can tailor your setup to your boat and species, while enjoying seamless updates and a connected accessory ecosystem.
