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Product Description

Upgrade your marine navigation and fishing experience with the Humminbird HELIX 7 CHIRP MEGA DI GPS G4N (411640-1).

Featuring a high-definition 7" color display (1024H x 600V), MEGA Down Imaging, Dual Spectrum CHIRP sonar, internal GPS, and built-in Humminbird Basemap, this fish finder delivers precision, reliability, and clarity on the water.

Perfect for freshwater or saltwater fishing, this unit is compatible with Minn Kota i-Pilot Link, Talon/Raptor anchors, AutoPilot, AIS, NMEA 2000, CHIRP radar, and the One-Boat Network™, making it a central hub for your boat’s electronic systems.

Enhanced Bluetooth, Wi-Fi, and Ethernet connectivity allow integration with other Humminbird devices and accessories, giving you full control from your fingertips.

7 inch MEGA Fishfinder Features

  • Master HELIX with user-friendly softkey controls and pre-loaded screen views.
  • MEGA Down Imaging: Covers up to 125 ft below the boat with up to 3X more detail than standard sonar.
  • Dual Spectrum CHIRP Sonar: Wide Mode for coverage, Narrow Mode for precision. Supports highly detailed fish arches and structure detection.
  • Internal GPS and Humminbird Basemap: Includes 10,000+ lakes, coastal coverage, buoys, hazards, day markers, and contours.
  • Premium Chart Compatible: LakeMaster®, CoastMaster™, and Navionics® Platinum/Gold charts supported.
  • AutoChart Live: Real-time mapping of fishing areas, bottom hardness, vegetation, and depth contours with 8 hours built-in recording; compatible with Zero Line SD cards for extended mapping.
  • One-Boat Network™: Seamless integration with other Humminbird and Minn Kota electronics.
  • Ethernet Networking: High-speed connections for multi-device setups, Minn Kota i-Pilot Link, and Humminbird CHIRP Radar.
  • Bluetooth: Wireless control of Talon/Raptor shallow water anchors, smartphone notifications, and wireless software updates.
  • NMEA 2000 networking built-in for advanced boat data integration.

Built for Marine Environments

  • True-Marine™ certified: Salt fog, vibration, UV, and temperature-tested for harsh marine conditions.
  • IPX2 Water-resistant design protects against moisture and splashing.
  • Includes conformal-coated PCB for additional corrosion resistance.

Specifications

  • Display Size: 7" diagonal, 1024H x 600V TFT color display
  • Touchscreen: No; keypad control interface
  • Depth: 1,200 ft (standard transducer), 3,500 ft (optional 50 kHz)
  • Sonar: Dual Spectrum CHIRP, MEGA Down Imaging
  • Coverage: 20°, 42°, 60°, two 86° @ -10dB
  • Optional Sonar: 50/83/200 kHz
  • Frequencies: 50/83/200/455/800 kHz, MEGA DI 1075-1150 kHz
  • CHIRP Imaging: Narrow (180-240 kHz), Wide (140-200 kHz), Full (150-220 kHz), optional 28–250 kHz
  • Power Input: 10.8–20 VDC; Power Draw: 800 mA; Power Output RMS: 500 W; Peak-to-Peak: 4000 W
  • Mount: Gimbal; Optional In-Dash Mount Kit
  • Weight: 2.1 lb (0.95 kg)

Included in the Box

  • HELIX 7 CHIRP MEGA DI GPS G4N Control Head
  • Transom-mount transducer (XNT-9-HW-MDI-75-T)
  • Power cable
  • Gimbal mounting bracket and hardware
  • Dual micro SD memory support
  • Screen snapshot and sonar recording features
  • 1-Year Limited Manufacturer Warranty

Freshwater and Saltwater Application Notes

  • For both Freshwater and saltwater fishing
  • Boat, wake tower, or pontoon installations
  • Integration with Minn Kota i-Pilot Link, Talon/Raptor anchors, and AutoPilot
  • Professional-grade boat network setups using One-Boat Network™, NMEA 2000, Ethernet, and Bluetooth
  • Real-time mapping and fishing analytics with AutoChart Live

Why Choose the HELIX 7 MEGA DI GPS G4N

Experience unparalleled underwater clarity, reliable marine navigation, and premium fish-finding technology all in one device.

Humminbird HELIX 7 CHIRP MEGA DI GPS G4N delivers the ultimate combination of power, precision, and connectivity, perfect for serious anglers seeking professional results on every outing.


Quick Guide (pdf)
Owner's Manual (pdf)

Warranty
Contact the Manufacturer directly to check your Warranty Information.

Warranties will cover many manufacturing defects or issues with materials and workmanship.
If you experience any problems with your item within the Warranty Period, please contact Manufacturers directly. 

If you need assistance in how to reach the correct Manufacturer, reach out to our customer service team for assistance. 

Have more questions? Visit our FAQs Page to learn more!

Shipping
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During checkout, you can select your preferred shipping method and see the estimated delivery times and costs.

Across the board, orders $99+ typically qualify for FREE Shipping. However, exclusions may apply to certain products, like Hazardous Materials, oversized items, and even products that ship directly from Vendors, etc. 

You can read our full Shipping Policy here or even visit our FAQs Page for assistance with quick, common questions.
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For any other way to connect with us, head over to our Contact page to find the perfect way to reach a Suncoast team member.
Need Professional Installation?
Mobile installation services are available in select Southwest Florida areasContact us to confirm availability.
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We offer mobile marine installation services for boat owners in our local Southwest Florida service area. From amplifiers and speakers to marine electronics, seating and power systems, and more.. Our technicians come directly to your boat—at the dock, marina, or your home.

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✔ Clean wiring, tuning & system setup and more..
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For safety, proper alignment, and to avoid damage or warranty issues, we strongly recommend professional installation by a qualified Marine Technician.

Improper installation may void warranties or cause instability.
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