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Description
The Garmin GT21-TM Transom Mount Transducer blends traditional sonar with CHIRP ClearVü scanning to deliver clear arches, sharp structure detail, and reliable target separation for coastal and offshore anglers.
- Dual-technology sonar: Traditional 50/200 kHz (up to 600 W) paired with CHIRP ClearVü at 260/455 kHz (up to 500 W) for broad search and high-resolution scanning
- Transom-mount design: Easy installation on a wide range of boats with secure mounting hardware
- Fast-response temperature sensor: Real-time water temperature data for smarter on-water decisions
- Included package: 8-pin transducer, mounting hardware, and installation instructions
- Fish arches and structure visibility: Clear arches and sharp structure detail for better target identification
- Ideal use cases: Coastal and offshore fishing where both traditional sonar and CHIRP scanning in one package are beneficial
The GT21-TM helps you see fish arches, identify structure, and gain the edge you need on the water with dual-frequency capability that supports both deep-water search and high-resolution underwater imaging. The built-in temperature sensor adds a valuable data point for patterning fish behavior, while the transom-mount design simplifies setup on many boats. This package is designed to deliver reliable performance in demanding coastal and offshore environments, supporting smarter decisions and more productive trips.
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