Experience precise, high-definition sonar with the Garmin GT15M-THF Stainless Steel Thru-hull Medium CHIRP transducer. Featuring a 0° Tilted Element and 600-watt midband CHIRP (85–165 kHz), this midsize boat workhorse delivers crisp structure, sharp target separation, and reliable performance for near offshore fishing and cruising.
Built for durability and reduced drag, the thru-hull flush-mount design uses a stainless steel housing and stem to withstand demanding marine conditions while maintaining clean hull lines.
With beamwidths of 16–24 degrees, you get broad coverage and clear fish arches, enabling you to distinguish between small baitfish and larger targets for smarter, more successful outings.
Easy to install and operate, the GT15M-THF supports plug-and-play operation with Garmin transducer ID auto-identification. It’s configurable for a wide range of boat hull materials, including fiberglass, composite, steel, aluminum and wood.
Performance is tuned for both saltwater and freshwater use: up to 1,200 feet in saltwater and 1,900 feet in freshwater, with reduced drag for efficient cruising and fishing.
What’s in the box
- GT15M-THF 0° Tilted Element transducer
- Jam Nut
- Thread isolator
- Hull isolator
- Documentation
