Humminbird HELIX 15 CHIRP MSI+ GPS G4N CHO (no transducer) | 4Boats

Control-head only Humminbird HELIX 15 CHIRP MSI+ GPS G4N CHO — no transducer included; ideal for using Built-in MEGA Imaging on Minn Kota, adding accessory transducers or sharing sonar across an existing Humminbird Ethernet network.

• Control Head Only model — this CHO unit ships without a transducer, perfect for MEGA Imaging on Minn Kota or existing Humminbird Ethernet networks.
• Keypad control — master HELIX with tactile soft keys and preloaded views for reliable use in all conditions.
• MEGA Side Imaging+ — side imaging to 61 m (200 ft) per side with ~20% more detail and ~60% more range than MEGA Side Imaging.
• MEGA Down Imaging+ — down imaging to 61 m (200 ft) with ~20% more detail and ~60% greater depth capability than MEGA Down Imaging.
• Dual Spectrum CHIRP sonar — Low-Q CHIRP performance with Wide and Narrow modes for detailed fish arches and structure definition.
• Internal GPS & Humminbird Basemap — enhanced basemap with contours, POIs and coastal coverage for the continental US; includes charts of 10,000+ lakes.
• Premium chart compatible & AutoChart Live — supports LakeMaster®, CoastMaster™ and Navionics®; records 8 hours of AutoChart Live mapping (expandable via SD).
• One-Boat Network & Ethernet networking — seamless integration with Minn Kota, Humminbird CHIRP Radar and high-speed Ethernet for professional-grade systems.
• Bluetooth — control the unit from compatible mobile devices for wireless operation.
• NMEA 2000 built-in — connect accessory NMEA 2000 networks for expanded instrument and sensor data.