Humminbird HELIX 7 CHIRP MEGA DI Fishfinder/Chartplotter GPS G4N — Control Head Only
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Humminbird HELIX 7 CHIRP MEGA DI is a full-featured fishfinder and chartplotter built for serious anglers who want clear sonar, reliable mapping, and seamless boat network integration — all in a compact 7" display. This listing is for the Control Head Only — no transducer is included.
Dual Spectrum CHIRP Sonar
Powered by a Low-Q CHIRP transducer (sold separately), Dual Spectrum CHIRP delivers exceptional target separation, crisp fish arches, and clear bottom definition in a wide range of water conditions.
MEGA Down Imaging
MEGA DI uses ultra-high-frequency sonar to produce near-photographic images of structure and fish directly below your boat — down to 125 ft / 38 m.
Built-In Basemap + AutoChart Live
The included Humminbird Basemap covers 10,000+ lakes and U.S. coastal waters with buoys, hazards, marinas, and depth contours. AutoChart Live lets you build real-time depth maps of your favourite spots as you fish, with up to 8 hours of onboard recording.
Chart Compatibility
Supports LakeMaster, LakeMaster Plus, SmartStrike, CoastMaster, and Navionics charts — giving you the flexibility to upgrade your mapping as your fishing takes you further.
One-Boat Network Ready
Connect via Ethernet and Bluetooth to integrate with compatible Minn Kota trolling motors, shallow water anchors, and Cannon downriggers. NMEA 2000® and built-in Wi-Fi round out the connectivity suite for engine gauges, fuel data, and wireless software updates via the Humminbird FishSmart™ App.
Keypad Control
A tactile keypad and intuitive soft-key menu system make it easy to navigate charts, switch views, and adjust settings on the water — even with gloves on.
Parts Desk Insights
- Best Use Case: Ideal as a replacement control head for existing HELIX 7 MEGA DI installations, or for anglers building a dual-unit setup who already have a compatible transducer. Not recommended as a first-time purchase without a transducer — pair with a compatible Humminbird transducer for a complete sonar system. See the HELIX 7 CHIRP MEGA DI with Transducer if you need a complete bundle.
- No Transducer Included (CHO): This unit requires a separately purchased transducer. Confirm transducer compatibility before ordering — MEGA DI requires a MEGA-capable transducer. The Humminbird XM 14 HW CMSI T Compact MEGA Side Imaging+ Transducer is one compatible option.
- MEGA SI Note: MEGA Side Imaging reads to 200 ft / 60 m on both sides. MEGA Imaging 360 is not compatible with HELIX 7 MEGA DI models.
- Related Models: Also consider the HELIX 7 CHIRP MEGA SI G4N if you want Side Imaging capability, or the HELIX 7 G4 DI CHIRP for a comparable Down Imaging model.
- Chart Cards: LakeMaster, CoastMaster, and Navionics cards are sold separately and inserted via the SD card slot.
- Network Note: Full One-Boat Network functionality requires compatible Minn Kota, Cannon, or Humminbird accessories — sold separately.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.