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30-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Features
- Product 1: 7" ultra-wide display gives you ample room to view the many pre-loaded split screen view options
- Product 1: Features MEGA Down Imaging, Dual Spectrum CHIRP Sonar, ethernet networking capability, Bluetooth connectivity, AutoChart Live, GPS and Humminbird Basemap built-in
- Product 1: MEGA Down Imaging: Get unprecedented underwater clarity with coverage down to 125 feet below your boat. You'll unlock new details with up to 3X more output than standard Down Imaging sonar
- Product 1: Dual Spectrum CHIRP: Before you cast, know what's down there thanks to long, well-defined fish arches, and a clear view of fish-holding structure and the bottom. Powered by our proprietary, Low Q CHIRP transducer, Dual Spectrum offers two ways to search: wide mode for maximum coverage and narrow mode for maximum detail
- Product 2: Connects your Humminbird HELIX fish finder to a Minn Kota motor equipped with Built-In MEGA Down Imaging
- Product 2: Shielded cable for crystal-clear MEGA Down Imaging sonar performance
- Product 2: Compatible with HELIX 7 models
- Product 2: For use with Minn Kota motors equipped with built-in MDI transducer and Humminbird Helix 7
Brand: Humminbird
Model Name: Helix 7, MKR-MDI-2
Power Source: Battery Powered
Screen Size: 7 Inches
Display Type: LED
Brand: Humminbird
Model Name: Helix 7, MKR-MDI-2
Power Source: Battery Powered
Screen Size: 7 Inches
Display Type: LED
Maximum measuring depth: 125 Feet
Mounting Type: Trolling Motor Mount
Brand Name: Humminbird
Style: GPS G4 Fish Finder + Cable
Date First Available: April 18, 2023
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: HELIX
Easy to use shipped fast
Reviewed in the United States on December 24, 2025 by Sportsdog_911
Style: HELIX
So far it is performing nicely. Many features on it that I won't use but if you only want basic depth and where the fish are it is fairly easy to figure out. Operators manual does not come with it but is accessible on line.
Reviewed in the United States on December 11, 2023 by Albert
Style: HELIX
Great product, used all summer on pontoon. Install was easy (with right tools). Note: My 20’ Pontoon has a longer distance between sensor and screen. Had to purchase an extension cord.
Reviewed in the United States on October 18, 2025 by Lindsay Forcum
Style: HELIX
I wish I would have know there is the exact same model available but with an "N" at the end of the name. The "N" stands for "Networking." That model is required to connect the Helix to a Minn Kota trolling motor for the follow-the-contour feature. (Also requires additional purchase of LakeMaster map card). Well now I'm out $600 and there is no way to add that feature to what I bought. I would have to throw this away and shell out $750 to get the "N" model (plus a LakeMaster card for an additional $150). I might spend $800 for follow-the-contour but I'm not going to spend $1,400 for it. I hate that you have to spend 50 hours online reading about their entire product line in order to figure out what you really need to buy. Even after 50 hours of research, I still haven't found what cone angle I have. So when I'm in 20 feet of water, how much bottom am I seeing on screen? Is it showing 2 feet of bottom or 8 feet of bottom? Additionally, the MEGA Down Imaging view is fine at showing structure on bottom but it stinks at showing fish. I need the 2D sonar view to see fish. But I need the chart to steer since I don't have follow-the-contour but there just isn't enough screen real estate to display all that. Additionally, SmartStrike is not available for the lake I fish so there is another feature I can't have. Otherwise it's a fine unit.
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Reviewed in the United States on June 20, 2023 by Greg Bussey
Style: HELIX
Still learning the operation but very pleased with the purchase. Navigation in the dark will never be the same. Haven’t used the sonar yet. Will review more once I have.
Reviewed in the United States on April 2, 2025 by Justin Beasley
Style: HELIX
Images are so clear on this, you'll see things.
Reviewed in the United States on April 15, 2025 by Darin
Style: HELIX
We live the Hummingbird! Super easy to understand, set up and use, vibrant colors!
Reviewed in the United States on November 5, 2024 by Dennis Krause
Style: HELIX
I purchased this several months ago. I installed everything according to the installation instructions. This required removing the decks to install the transducer. It wouldn't show any data. I spent countless hours researching before I contacted customer support. I had to go through countless hours of help videos and tech "help". I had to submit installation photos then pictures of the screens with no data (which I had to be on the water for). I was sent a new transducer. I removed the decks again and installed it according to the instructions. Again no data. Went through the customer support tutorials AGAIN! I was told to update the software. I had to purchase an SD card, download the update and take the boat out again. Still no data. Now I'm told to mail the unit back for service and repair. I've never even used it. I purchased a new unit, not a rebuilt one. Their customer support drug this out so long I'm outside of the Amazon return window. Save yourself the headache and choose another brand.
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Reviewed in the United States on September 19, 2024 by David Tolbert