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Description
Garmin GT23M-TM is a premium transom-mount transducer that blends traditional CHIRP sonar with CHIRP DownVü scanning for coastal and offshore anglers seeking clear, actionable underwater views. Dual CHIRP capability lets you switch between broad coverage and high-resolution imagery to adapt to changing conditions.
- Dual CHIRP capability: Switch between traditional CHIRP sonar for broad coverage and CHIRP DownVü for high-resolution underwater imagery.
- Mid-Band CHIRP traditional sonar: 80–160 kHz, up to 600 W for deep, reliable returns.
- CHIRP DownVü scanning sonar: 260/455 kHz with up to 500 W of power for detailed, high-contrast images beneath your hull.
- Transom-mount design: Engineered for coastal and offshore applications with straightforward installation using included instructions.
- 8-pin connectivity: Solid connectivity and dependable operation on a wide range of Garmin systems.
- Compatibility: Works with Garmin displays and sonars across a broad range of systems for flexible mounting options.
With GT23M-TM, you gain a versatile sonar toolkit that adapts to changing fishing conditions. Traditional CHIRP helps you detect schools and deep-water targets across broad areas, while DownVü reveals precise underwater detail—from rock ledges to weed lines—so you can target productive spots with confidence. The transom-mount design and robust 8-pin connection provide reliable performance on a wide range of Garmin displays, and installation is straightforward so you can get on the water quickly. Whether you're trolling coastal bays or venturing offshore, this transducer delivers actionable sonar data that shapes smarter decisions on the water. 
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