6 Best Transducers for Garmin ECHOMAP Ultra 2 Fish Finders (November 2026)
The best Garmin ECHOMAP Ultra 2 transducers include the Garmin LiveScope Plus System with GLS 10 for live sonar views, the Garmin ECHOMAP UHD2 93sv with GT56 Transducer for inland scanning sonar, and the Garmin ECHOMAP UHD2 94sv with GT56 Transducer for coastal scanning sonar.
On this page (10 sections)
- Which Garmin ECHOMAP Ultra 2 transducer is best for each sonar view?
- Garmin LiveScope Plus System with GLS 10: Best for live sonar views
- Garmin ECHOMAP UHD2 93sv with GT56 Transducer: Best for inland scanning sonar
- Garmin ECHOMAP UHD2 94sv with GT56 Transducer: Best for coastal scanning sonar
- Garmin 010-01960-01 GT20-TM: Best for traditional sonar and ClearVü
- Garmin GT15M: Best for in-hull high-speed depth
- Garmin 010-12908-00 GT24UHD-TM: Best for shallow ClearVü detail
- How should you choose a Garmin ECHOMAP Ultra 2 transducer?
- How does Garmin compare with other transducer brands?
- Final choice: which Garmin ECHOMAP Ultra 2 transducer should you buy?
The best Garmin ECHOMAP Ultra 2 transducer depends on the sonar view you want. Start with how you read the water before you compare depth figures or power ratings.
Choose the LiveScope Plus System for live Forward, Down and Perspective views. That choice suits anglers who want to watch targets change in near real time.
Choose a GT56 package for traditional, ClearVü and SideVü scanning in one setup. That mix gives fish arches below the boat plus wider views to the sides.
Choose the GT20-TM for a focused traditional and ClearVü setup. That approach suits a simple replacement without side scanning from the same transducer.
Your boat also matters. A transom or trolling motor mount works differently from the GT15M inside fiberglass installation.
Mounting position changes cable routing, cleaning access and signal clarity at speed. Check hull material and available space before you pick a style.
Chart coverage matters with a complete ECHOMAP UHD2 package. The 93sv and 94sv pair similar sonar hardware with different built in chart sets.
Pick the inland version for lake water and the coastal version for salt water routes. That split saves effort when you plan waypoints and return trips.
If you are comparing displays, our guide to Garmin ECHOMAP Ultra vs GPSMAP explains where each family fits. You can also review the best Garmin ECHOMAP Ultra 2 mount before planning installation.
Plan the mount early so the transducer sits clear of turbulence. A tidy cable route also makes later checks and removal easier.
Our score weighs specs, features and buyer feedback against your needs. We checked sonar types, frequencies, depth ranges, mounting options and included parts.
Use those checks to narrow the field, then confirm the connector for your exact display. That step prevents a costly swap.
Match the view to your habit, not the longest spec list. A broader mix suits a day of trolling and scanning, while a focused unit suits basic depth and arches.
Our picks at a glance
-
1
Best for live sonar viewsGarmin LiveScope Plus System with GLS 10
9.7/10 our score
See it on Amazon -
2
Best for inland scanning sonarGarmin ECHOMAP UHD2 93sv with GT56 Transducer
9.5/10 our score
See it on Amazon -
3
Best for coastal scanning sonarGarmin ECHOMAP UHD2 94sv with GT56 Transducer
9.4/10 our score
See it on Amazon
- 4
Check itGarmin 010-01960-01 GT20-TM Transducer
Best for traditional sonar and ClearVü - 5
Best for in-hull high-speed depthCheck it - 6
Check itGarmin 010-12908-00 Ultra High-Definition Scanning Sonar All-in-One
Best for shallow ClearVü detail
Which Garmin ECHOMAP Ultra 2 transducer is best for each sonar view?
The LiveScope Plus System is the top pick for real time views. It suits anglers who want Forward, Down and Perspective live modes rather than a stored picture.
The GT56 packages give the broadest mix of traditional, ClearVü and SideVü sonar. That mix suits anglers who want arches below the boat plus scanning views to the sides in one package.
The GT20-TM and GT15M are more focused choices for traditional sonar setups. The GT20-TM adds ClearVü from a transom or trolling motor mount.
The GT15M suits a fiberglass hull where an inside installation helps protect depth readings at higher speed. That trade off means no ClearVü or SideVü from the same unit.
Use this split as a shortlist, then check hull material, cable length and display connection. The right pick should fit your boat and fishing style without extra adapters or compromises.
| Product | Best for | Sonar | Modes | Display | Our score |
|---|---|---|---|---|---|
| Garmin LiveScope Plus System with GLS 10 | live sonar views | Live sonar | Forward, Down and Perspective | 10.1-inch LCD | 9.7 |
| Garmin ECHOMAP UHD2 93sv with GT56 Transducer | inland scanning sonar | Traditional, ClearVü and SideVü | 9-inch touchscreen | 9.5 | |
| Garmin ECHOMAP UHD2 94sv with GT56 Transducer | coastal scanning sonar | Traditional, ClearVü and SideVü | 9-inch touchscreen | 9.4 | |
| Garmin 010-01960-01 GT20-TM Transducer | traditional sonar and ClearVü | 9.3 | |||
| Garmin GT15M Transducer | in-hull high-speed depth | 9.2 | |||
| Garmin 010-12908-00 Ultra High-Definition Scanning Sonar All-in-One | shallow ClearVü detail | 9.1 |
Garmin LiveScope Plus System with GLS 10: Best for live sonar views
Garmin LiveScope Plus System with GLS 10: Best for live sonar views
- LVS34 transducer
- Forward, Down and Perspective modes
- GLS 10 black box
- Trolling motor, shaft and perspective mounts
This system is the strongest choice for anglers who want live sonar views and multiple viewing modes. It includes the GLS 10, LVS34 and mounts for the supported modes.
Pros
- Forward, Down and Perspective modes
- LVS34 transducer
- Mounts included
Cons
- GLS 10 is a separate black-box component
- Compatible ECHOMAP or GPSMAP sold separately
The Garmin LiveScope Plus System with GLS 10 is the strongest option here for anglers who want live sonar instead of only a historical view beneath the boat. The LVS34 transducer supports Forward, Down and Perspective modes, so you can choose the view that matches how you fish.
The system includes the GLS 10, LVS34, trolling motor barrel mount, shaft mount, perspective mount bracket, power cable, network cable, network adapter cable and documentation. Those included mounts matter because the viewing mode depends on how the transducer is positioned.
Garmin describes the system as having sharper images, reduced noise and fewer sonar artifacts. It also supports vivid color palettes intended to improve detail and clarity.
The existing GLS 10 can work with the new transducer as an upgrade path within the LiveScope system. A compatible Garmin ECHOMAP or GPSMAP display is sold separately, so check the display and network requirements before choosing this package.
This is the best Garmin ECHOMAP Ultra 2 transducer choice when live target separation and multiple viewing angles matter most. It is less suitable if you only need a basic transom-mounted traditional sonar replacement.
Garmin ECHOMAP UHD2 93sv with GT56 Transducer: Best for inland scanning sonar
Garmin ECHOMAP UHD2 93sv with GT56 Transducer: Best for inland scanning sonar
- Included GT56-TM transducer
- Traditional, ClearVü and SideVü sonar
- 9-inch touchscreen
- Garmin Navionics+ U.S. Inland charts
This chartplotter and GT56 combination suits inland anglers who want traditional, ClearVü and SideVü sonar in one setup. Its built-in inland charts also support lake-focused trips.
Pros
- GT56-TM included
- Built-in inland charts
- Wi-Fi sonar sharing
Cons
- It is a chartplotter package, not a transducer-only upgrade
- Inland chart coverage differs from coastal coverage
The Garmin ECHOMAP UHD2 93sv with GT56 Transducer is a complete 9-inch touchscreen chartplotter package for inland anglers who want several sonar views in one setup. The included GT56-TM transducer supports Garmin traditional, ClearVü and SideVü scanning sonars.
Its built-in Garmin Navionics+ U.S. Inland charts cover more than 18,000 lakes with up to 1-foot contours.
That chart coverage makes this package a better match for lake trips than the coastal version below.
The 93sv measures 10.4 x 6.5 x 3.2 inches, with a 9-inch display. It includes the chartplotter, GT56 transducer where noted, power/data cable, tilt mount, flush mount, hardware and documentation.
Built-in Wi-Fi can share sonar, waypoints and routes with another ECHOMAP UHD2 chartplotter. The unit can also connect wirelessly to a Force trolling motor for route following, waypoint navigation, speed control and battery checks.
Choose this package when you need a display and transducer together. If you already own a compatible ECHOMAP display, a transducer-only option may be a more direct upgrade.
Garmin ECHOMAP UHD2 94sv with GT56 Transducer: Best for coastal scanning sonar
Garmin ECHOMAP UHD2 94sv with GT56 Transducer: Best for coastal scanning sonar
- Included GT56-TM transducer
- Traditional, ClearVü and SideVü sonar
- 9-inch touchscreen
- Garmin Navionics+ U.S. Coastal charts
The 94sv package is the better fit for coastal anglers who want GT56 scanning sonar and built-in coastal charts. It shares the 93sv package's 9-inch display and sonar types.
Pros
- GT56-TM included
- Built-in coastal charts
- Dashboard or panel mounting
Cons
- It is a full chartplotter package
- Choose chart coverage carefully before ordering
The Garmin ECHOMAP UHD2 94sv with GT56 Transducer is the coastal counterpart to the 93sv package. It includes a GT56-TM transducer for traditional, ClearVü and SideVü scanning sonar, plus built-in Garmin Navionics+ U.S.
Coastal charts.
The 9-inch touchscreen chartplotter has the same stated 10.4 x 6.5 x 3.2-inch dimensions as the 93sv. Its mounting options are dashboard mount or panel, and the package includes a power/data cable, tilt mount, flush mount, hardware and documentation.
Wi-Fi lets you wirelessly share sonar, waypoints and routes with another ECHOMAP UHD2 chartplotter. The 94sv also connects wirelessly to a Force trolling motor for route creation, waypoint travel, speed control and battery information.
The main decision between this unit and the 93sv is chart coverage. Pick the 94sv for coastal mapping, and pick the 93sv for inland mapping.
Before installing, read our guide on how to update a Garmin ECHOMAP Ultra. Software support and chart access are part of the setup process for a connected chartplotter.
Garmin 010-01960-01 GT20-TM: Best for traditional sonar and ClearVü
Garmin 010-01960-01 GT20-TM Transducer: Best for traditional sonar and ClearVü
- 500 W power rating
- 77/200 kHz traditional sonar
- 455 kHz ClearVü
- 20-foot cable
The GT20-TM is a practical choice when your Garmin setup needs traditional sonar plus ClearVü. Its 20-foot cable and included mounts give you more flexibility during a basic installation.
Pros
- Traditional and ClearVü sonar
- 20-foot cable
- Fast response temperature sensor
Cons
- Not a live sonar system
- Lower power rating than the GT15M
The Garmin 010-01960-01 GT20-TM Transducer is the most focused transducer-only choice in this group. It combines traditional sonar with ClearVü, making it useful for anglers who want fish arches and a view of objects and structure below the boat.
The GT20-TM has a 20-foot cable with a built-in fast response temperature sensor. Its power rating is 500 W, with operating frequencies of 77/200 kHz for traditional sonar and 455 kHz for ClearVü.
Garmin states a maximum depth of 1,900 feet for traditional sonar and 750 feet for ClearVü. Actual results depend on water conditions, boat movement, installation and the connected display.
The transducer comes with transom and trolling motor mounts and installation instructions. Those options make it easier to match the hardware to a common boat setup, but you should still confirm that your ECHOMAP Ultra 2 connection and mounting position are suitable.
Choose the GT20-TM when you want a straightforward traditional and ClearVü combination. Choose the GT56 package instead if SideVü scanning is a key part of your plan.
Garmin GT15M: Best for in-hull high-speed depth
Garmin GT15M Transducer: Best for in-hull high-speed depth
- In-hull fiberglass installation
- 85–165 kHz mid-band CHIRP
- 600 W power rating
- 0–25 degree deadrise support
The GT15M suits fiberglass boats that need an inside-hull installation and mid-band CHIRP traditional sonar. Its stated deadrise range is 0 to 25 degrees.
Pros
- Inside-hull installation
- 600 W power rating
- Suitable for higher-speed depth readings
Cons
- For fiberglass hulls
- Traditional sonar only
The Garmin GT15M Transducer is built for boats that need an inside-fiberglass installation instead of a transom position. Its GT15M-IH design can help avoid transom cavitation issues and is intended for boats traveling at higher speeds.
It supports a hull deadrise angle from 0 to 25 degrees. The 8-pin transducer uses mid-band CHIRP traditional sonar from 85 to 165 kHz and has a 600 W power rating.
The maximum measuring depth is stated as 1,900 feet. The product has a thru-hull mounting type, measures 3.94 x 3.94 x 5.91 inches and weighs 500 g.
This is a strong fit when accurate depth at speed matters more than side-scanning or live sonar. It is not the right pick for a boat hull or sonar plan that requires ClearVü, SideVü or live views from this transducer.
Garmin describes using the GT15M with a GT30-TM transducer and an adapter cable to maintain depth at high speeds and scanning capability at trolling speeds. Follow the installation instructions carefully, especially when fitting equipment inside a fiberglass hull.
Garmin 010-12908-00 GT24UHD-TM: Best for shallow ClearVü detail
Garmin 010-12908-00 Ultra High-Definition Scanning Sonar All-in-One: Best for shallow ClearVü detail
- 800 kHz ClearVü
- High-wide CHIRP traditional sonar
- Transom and trolling motor mounts
- 20-foot cable
The GT24UHD-TM fits anglers who value detailed ClearVü images in water up to 200 feet. It combines 800 kHz ClearVü with high-wide CHIRP traditional sonar.
Pros
- 800 kHz ClearVü
- High-wide CHIRP
- Two mounting options
Cons
- ClearVü depth is limited to 200 ft
- Specified for GPSMAP 8400xsv and 8600xsv series chartplotter and sonar combos
The Garmin 010-12908-00 Ultra High-Definition Scanning Sonar All-in-One combines 800 kHz ClearVü with high-wide CHIRP traditional sonar. It is aimed at anglers who want detailed images of fish and structure in water up to 200 feet.
The GT24UHD-TM uses 760–880 kHz UHD ClearVü CHIRP and 150–240 kHz high-wide CHIRP traditional sonar. Its stated power output is 350 W for traditional sonar and 350 W for ClearVü.
Garmin gives the unit a ClearVü maximum depth of 200 feet and a traditional sonar maximum depth of 800 feet. ClearVü beam width is 0.94 x 60 degrees at 800 kHz, while the traditional CHIRP beam width is 24–16 degrees.
The transducer has a 20-foot cable, 8 pins and transom or trolling motor mounting. It is described as a universal fit, but the compatibility note specifies GPSMAP 8400xsv and 8600xsv series chartplotter and sonar combos.
That compatibility detail makes this a careful-buy option for ECHOMAP Ultra 2 owners. Confirm the exact display connection before treating it as a direct replacement.
How should you choose a Garmin ECHOMAP Ultra 2 transducer?
Choose by sonar view first, then confirm connector, mounting position, hull material and depth range. A transducer that looks attractive on frequency or depth alone may not fit your display or boat installation.
Do you need live, traditional, ClearVü or SideVü sonar?
Live sonar shows changing views as fish and structure move around the transducer. The LiveScope Plus System is the only product here built around Forward, Down and Perspective live modes.
Traditional sonar is the simpler choice for reading depth and fish arches beneath the boat. The GT20-TM and GT15M focus on traditional sonar, while the GT56 packages add ClearVü and SideVü scanning.
ClearVü is useful when you want a more detailed image of structure below the boat. SideVü expands the scanning view to the sides, which is why the GT56 packages suit anglers who want broader coverage from one included transducer.
For a plain-language explanation of sonar use, read Do Fish Finders Really Work?. The answer depends on the view, installation and how you interpret the screen.
Does the mounting position match your boat?
Transom and trolling motor mounts are common choices when the transducer can sit outside the hull. The GT20-TM and GT24UHD-TM include mounting options for those positions, while the LiveScope Plus System includes mounts for its supported viewing modes.
The GT15M is different because it is designed for installation inside a fiberglass hull. Its 0 to 25 degree deadrise range should match the boat before you plan the installation.
Measure the available space and check cable routing before ordering. Keep the transducer position clear of turbulence and follow the installation instructions for the exact mount.
How do frequencies and power affect your choice?
Frequency affects the type of sonar view and depth response you can expect from a transducer. The GT20-TM uses 77/200 kHz traditional sonar and 455 kHz ClearVü, while the GT15M uses 85–165 kHz mid-band CHIRP traditional sonar.
Power ratings also differ. The GT15M is rated at 600 W, the GT20-TM at 500 W, and the GT24UHD-TM at 350 W for both traditional and ClearVü sonar.
These figures should support comparison, not replace compatibility checks. The display, water conditions, boat speed and installation all affect the result.
Can you use a castable fish finder with this setup?
A castable fish finder is a different type of system from a permanently mounted Garmin transducer. Our guide to how a castable fish finder works explains the wireless transducer and phone-based approach.
Choose a mounted Garmin transducer when you want a fixed boat installation and a display-based sonar system. Choose castable equipment when portability from shore or between boats matters more.
How does Garmin compare with other transducer brands?
Garmin's transducer choices cover traditional sonar, ClearVü, SideVü and live sonar. That range is useful, but another brand may be a better fit for a different display system.
Compatibility should come before comparing depth claims or frequencies. A connector or software limit can matter more than a headline depth figure.
Garmin transducers are built around Garmin sonar views and display families. That focus helps when you already own a compatible ECHOMAP or GPSMAP unit.
It can limit you if your display belongs to another brand. Check the exact model and plug shape before you plan a swap.
For a Humminbird setup, compare options in our guide to the best Humminbird fish finder transducer. Lowrance owners can use our guide to the best Lowrance fish finder transducer.
Those guides help you compare sonar views within each brand system. They also show how mounting choices and included cables differ by model.
Don't assume a transducer works across brands because the mounting style looks similar. A transom bracket may fit, yet the sonar signal and display menu may not.
Confirm the display family, connector, sonar functions and installation method. That check protects you from buying hardware that mounts well but cannot run the view you want.
Think about care after the sale as well. A fixed mount should stay clean and free of impact from docks and trailer straps.
Rinse and inspect the transducer face after each trip, especially after shallow water runs. Check the cable for chafe where it passes through the hull or gunnel.
Software support also matters across brands. Keep the display updated and confirm that new sonar features are supported before you rely on them.
If you switch brands, budget time for learning a new menu layout. Saved waypoints and settings may not carry over in the way you expect.
For most buyers, staying within one brand is the simpler path. It keeps parts, cables and future upgrades matched to the display you already trust.
Cross brand shopping still makes sense when a feature is a clear priority. Use the brand guides to compare honestly, then confirm compatibility in writing before you order.
Final choice: which Garmin ECHOMAP Ultra 2 transducer should you buy?
The Garmin LiveScope Plus System with GLS 10 is the best Garmin ECHOMAP Ultra 2 transducer for live Forward, Down and Perspective views. It suits anglers who want to watch fish and structure as they move.
Choose the 93sv with GT56 for inland charts. That package suits lake anglers who want traditional, ClearVü and SideVü sonar with built in lake mapping.
Choose the 94sv with GT56 for coastal charts. That package suits salt water anglers who want the same sonar mix with coastal mapping built in.
Choose the GT20-TM for traditional sonar and ClearVü. That transducer suits a focused setup for arches below the boat and a clearer view of structure underneath.
Pick the GT15M when your fiberglass boat needs an inside hull transducer for high speed depth. Its inside installation suits boats where transom turbulence makes readings less steady.
Pick the GT24UHD-TM only after confirming the specified chartplotter compatibility. It suits shallow water anglers who want detailed 800 kHz ClearVü images up to 200 feet.
That check is firm, not a formality. The listed compatibility points to GPSMAP 8400xsv and 8600xsv series combos, so confirm your display first.
Before you order, measure the mounting area and plan the cable route. Keep the position clear of turbulence and follow the included instructions.
Check connector type, hull material and depth range against your normal water. A match on those limits makes setup and care easier.
If display features matter, compare Garmin ECHOMAP Ultra vs UHD2 before you order. The right unit matches your sonar goal, display connection and boat.
Set aside time for a short learning trip in familiar water after installation. Watch how each view responds to speed, depth and boat movement before you judge it.
Keep the transducer face clean and inspect cables after shallow runs or trailer moves. Small care steps help the signal stay clear season after season.
In short, buy for the view you will use most. Live sonar, inland scanning, coastal scanning and inside hull depth each lead to a different winner.
Our top 3 picks at a glance
-
1
Best for live sonar views
Garmin LiveScope Plus System with GLS 10
9.7/10 our score
See it on Amazon -
2
Best for inland scanning sonar
Garmin ECHOMAP UHD2 93sv with GT56 Transducer
9.5/10 our score
See it on Amazon -
3
Best for coastal scanning sonar
Garmin ECHOMAP UHD2 94sv with GT56 Transducer
9.4/10 our score
See it on Amazon
Frequently asked questions
What is the best Garmin ECHOMAP Ultra 2 transducer?
The Garmin LiveScope Plus System is the best choice for live sonar views because it supports Forward, Down and Perspective modes with the GLS 10 and LVS34. For traditional sonar and ClearVü, the GT20-TM is a simpler transducer-focused option.
Confirm your ECHOMAP model and connector before ordering.
Can Garmin ECHOMAP Ultra 2 use LiveScope?
Garmin ECHOMAP UHD2 units support LiveScope sonar systems, but the LiveScope Plus System includes a GLS 10 black box and LVS34 transducer. The compatible ECHOMAP or GPSMAP display is sold separately.
Check the display's connection requirements and available mounting space before installation.
What is the difference between GT20-TM and GT56?
The GT20-TM provides traditional sonar and ClearVü, with stated traditional depth of 1,900 feet and ClearVü depth of 750 feet. The GT56-TM included with the 93sv and 94sv packages supports traditional, ClearVü and SideVü scanning sonar.
Is the Garmin GT15M a thru-hull transducer?
Yes. The GT15M is designed for installation inside a fiberglass hull and supports a hull deadrise angle from 0 to 25 degrees.
It uses mid-band CHIRP traditional sonar from 85 to 165 kHz and has a 600 W power rating.
Should you choose the Garmin 93sv or 94sv?
Choose the Garmin ECHOMAP UHD2 93sv with GT56 for inland charts, or choose the 94sv with GT56 for coastal charts. Both packages include a 9-inch touchscreen chartplotter and GT56-TM transducer for traditional, ClearVü and SideVü sonar.
