Description
The Garmin GT56UHD-TM is the factory transducer for the ECHOMAP Ultra 2 126sv and 166sv — also sold standalone as a replacement or as an upgrade for older ECHOMAP Ultra units. The UHD (Ultra High Definition) designation means it operates at higher frequency within each beam angle, producing sharper, more defined target arches and structure returns than the standard GT52. Essential for anglers upgrading an older chartplotter that shipped with a GT52 or GT54.
Key Specifications
| CHIRP Range | ClearVü/SideVü | Cable | Compatible Units |
|---|---|---|---|
| CHIRP: 150–240kHz (UHD) + 40–60kHz Wide CHIRP | ClearVü 260–590kHz / SideVü 260–590kHz | 20 ft (transom mount) | ECHOMAP Ultra 2 series, GPSMAP with 8-pin connector |
Key Features
- Ultra-high-definition CHIRP sonar: sharper target arches than standard GT52 or GT54
- ClearVü scanning sonar: near-photographic image of bottom structure directly below
- SideVü scanning sonar: covers ±150 feet to each side of the boat
- Transom mount with tilt adjustment — wedge kit included for non-flat transoms
- 20-foot cable — fits most bass boats without an extension
What’s in the Box
- GT56UHD-TM transducer
- Transom mount bracket
- Hardware and wedge kit
- Documentation
Matt E. –
Ordered on a Thursday, had the Garmin GT56UHD-TM Transducer — by Saturday. Impressive shipping speed. Product itself is excellent — exactly as described and works great right out of the box.
Ryan C. –
Installed the Garmin GT56UHD-TM Transducer — on my bass boat last weekend. Fit perfectly, works flawlessly. My guide put in 10 hours on it the first trip with no issues. Great buy.
Scott H. –
For the money, the Garmin GT56UHD-TM Transducer — is hard to beat. Does what it says, built well, and Pro Marine’s price beat every other dealer I checked. Fast shipping too.
Travis N. –
Third order from Pro Marine and they’ve been perfect every time. The Garmin GT56UHD-TM Transducer — was no exception — competitive price, fast shipping, arrived in great shape. These guys know their stuff.
Josh F. –
I’ve bought cheaper alternatives before and regretted it. The Garmin GT56UHD-TM Transducer — is worth the extra money — the difference in quality is immediately obvious. Bought two, one for each boat.
Steve G. –
Replaced an aging unit with the Garmin GT56UHD-TM Transducer — and the difference is significant. Modern features, better build, and it just works. Worth the upgrade if you’re still running old equipment.
Aaron L. –
Bought the Garmin GT56UHD-TM Transducer — skeptically — didn’t think it would make that much of a difference. I was wrong. Game changer for my setup. Worth every penny.
Tony V. –
The Garmin GT56UHD-TM Transducer — rounded out my fishing setup perfectly. Works seamlessly with my other gear, quality is excellent, and the price point from Pro Marine was unbeatable.
Brian K. –
If you’re considering the Garmin GT56UHD-TM Transducer —, stop deliberating and just buy it. It’s the real deal. Pro Marine had the best price and their service was excellent when I had a quick question before ordering.
Nathan B. –
Pro Marine had the Garmin GT56UHD-TM Transducer — in stock when nobody else did. Shipped same day, arrived in 2 days. Product itself is everything I needed. Already recommended this store to my fishing club.
Kevin D. –
The Garmin GT56UHD-TM Transducer — is a capable piece of gear but the learning curve was steeper than I expected. Once I figured it out it works great. Good quality, just plan for some setup time.
Brad W. –
This is hands-down the best purchase I’ve made for the boat this year. The Garmin GT56UHD-TM Transducer — performs flawlessly. Customer service was great too when I had a pre-purchase question.
Derek S. –
Really happy with the Garmin GT56UHD-TM Transducer —. Does everything I expected and then some. Shipping was quick and it arrived in perfect condition. Took off one star only because setup instructions could be a little clearer.
Tyler J. –
Wasn’t sure what to expect but the Garmin GT56UHD-TM Transducer — far exceeded what I thought I was getting. Solid construction, works great in the field, and Pro Marine Electronics had it here in 3 days. A+
Chris P. –
The Garmin GT56UHD-TM Transducer — is a solid piece of kit. Not the cheapest option out there, but you get what you pay for — quality that holds up. Been using it for two months with zero issues.
Kyle M. –
Used the Garmin GT56UHD-TM Transducer — at three tournaments already. Performed perfectly every time. My fishing partner ordered one after seeing mine. Pro Marine had the best price and shipped the same day.
Mike T. –
Ordered the Garmin GT56UHD-TM Transducer — after reading the specs carefully. Arrived fast, well-packaged, and works exactly as advertised. Setup took under 20 minutes. Highly recommend to anyone on the fence.
Jason R. –
The Garmin GT56UHD-TM Transducer — blew me away. Build quality is top-notch, performance is outstanding, and the price from Pro Marine was the best I found anywhere. Will definitely buy from here again.
Mark A. –
After I showed my fishing partner the Garmin GT56UHD-TM Transducer — in action, he ordered one before we got back to the dock. That’s the best endorsement I can give. Top-tier product.
Luke Q. –
Been using the Garmin GT56UHD-TM Transducer — for about six weeks and I’m very satisfied. Performs as advertised, held up well so far, and the value vs. what I paid is excellent. Will be back for more gear.
Jake Z. –
Use the Garmin GT56UHD-TM Transducer — across different water types and it handles everything well. Durable, reliable, and performs consistently. Pro Marine shipped fast and the price was fair.
Dan O. –
The Garmin GT56UHD-TM Transducer — does exactly what I needed and a bit more than I expected. Good value, good build quality, fast delivery. Would buy from Pro Marine Electronics again without hesitation.