Garmin GT12M-THF Transducer

This is a thru-hull transducer featuring a flush-mount design. Because it sits flush against the hull, it is best suited for vessels where minimizing drag is a priority and you want a clean, streamlined installation without the need for a fairing block.

The GT12M-THF is capable of reaching depths of up to 800 feet in saltwater and 1,200 feet in freshwater. Its midband CHIRP performance is optimized for these ranges, providing clear target separation for both nearshore and offshore fishing.

This unit uses an 8-pin connector. Before purchasing, verify that your specific Garmin marine display or sonar module supports an 8-pin transducer connection to ensure full compatibility.

Bronze is the standard for durability in marine environments, particularly for long-term use in saltwater. It offers superior structural integrity and resistance to the elements compared to plastic alternatives, making it a reliable choice for serious cruisers and anglers.

Midband CHIRP provides a balance between depth penetration and target resolution. It is excellent for identifying fish targets and structure in the mid-depth range, offering a clearer, more detailed image than traditional single-frequency sonar.