The Garmin GT23M-TM Transom Mount Transducer delivers dual CHIRP sonar for coastal and offshore anglers, providing a clear, detailed underwater picture with traditional sonar and DownVü scanning.
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Frequencies: Traditional CHIRP 80-160 kHz; DownVü CHIRP 245-275 kHz and CHIRP 445-465 kHz
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Beam width: Traditional 24°/13°; DownVü 2.0×51° @ 260 kHz and 1.4×29° @ 455 kHz
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Maximum depth: Traditional up to 1,800 ft; DownVü up to 1,000 ft
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Transmit power: Traditional 600 W; DownVü 500 W
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Mounting Type: Transom-mount transducer with rugged plastic housing
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Connector: 8-pin
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Cable length: 30 ft
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Included in the box: GT23M-TM transducer, transom mount, mounting hardware, and documentation
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Compatibility: Ready to integrate with compatible Garmin systems for easy installation
Whether you’re chasing inshore species or deep-water game, this transducer delivers clear arches and crisp structure, helping you locate fish more quickly and confidently on every voyage. The dual CHIRP sonar provides broad-area depth with traditional imaging while DownVü offers high-resolution scanning beneath your boat, enabling you to distinguish fish, cover, and underwater features with precision. A robust transom mount and a 30-foot cable offer flexible placement and reliable signal, backed by straightforward installation with the included hardware.
| Frequencies |
Traditional: CHIRP 80-160 kHz
DownVü: CHIRP 245-275 kHz and CHIRP 445-465 kHz |
| Beam width |
Traditional: 24/13
DownVü:
2.0x51@260
1.4x29@455 |
| Maximum depth |
Traditional: 1,800 ft
DownVü: 1,000 ft |
| Transmit power |
Traditional: 600 W
DownVü: 500 W |
| Connector |
8 pin |
| Cable length |
30 feet |
