Garmin - GT12M Bronze Thru-Hull Transducer - 350W, 20 Degree

Why This Transducer is a Game-Changer

The GT12M Bronze Thru-Hull transducer is designed for midsize boats focused on both cruising and fishing. Offering 350-watt mid-band CHIRP sonar capabilities, it provides crystal-clear views of fish arches, underwater structures, and accurate depth measurements.

Under-the-Hood Specs

• High-definition Mid-band CHIRP sonar that reaches 800’ in saltwater and 1,200’ in freshwater.
• Operational frequency range of 85–165 kHz.
• Enhanced sonar sensitivity for high resolution and noise reduction.

Dimensions That Matter

The GT12M features a durable bronze housing and stem, designed for flush thru-hull installation. With a cable length of 50 ft, this transducer fits a wide variety of boat hull types.

Finishes & Craftsmanship

The bronze housing is not just robust but also designed for straightforward thru-hull flush mounting, thereby minimizing drag while maximizing sonar performance.

Transducer Highlights

• Auto-ID Technology for plug-and-play operation.
• Excellent compatibility with a wide range of boat hull materials.
• Configurable tilt versions to accommodate various deadrise angles.

What's in the Marine Treasure Box

• GT12M-THF transducer
• Jam nut
• Washer
• Instruction Manual