Meet the Garmin GT12M Bronze Thru-Hull - 350W - 12 Degree: a flush-mounted transducer built for midsize fishing and cruising boats that minimizes drag while delivering reliable, detailed sonar returns. It supports mid-band CHIRP for enhanced target definition of fish arches, structures, and bottom depth on Garmin displays.
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Transducer type: Bronze thru-hull, flush-mounted design to minimize drag while preserving sonar clarity
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Power: 350 W transducer power for strong, clear returns and better target separation
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Frequency range: 85–165 kHz broad frequency range for flexible coverage in different waters
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Beamwidth: 24°–16° beamwidth for wide scanning and detailed returns
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Depth rating: Up to 800 ft in saltwater and 1,200 ft in freshwater
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Mid-band CHIRP: Enhanced target definition for arches and underwater structures
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Auto-ID Technology: Plug-and-play operation that automatically configures the sonar to the transducer
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Hull compatibility: Configurable for fiberglass, composite, and wood hulls; tilt versions accommodate 0–20° deadrise without a fairing block (12° deadrise support)
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Depth/Temperature: Read depth and temperature on compatible Garmin displays
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Cable length: 50 ft transducer cable for installation flexibility
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Flush installation: Flushed into the hull to minimize drag while delivering reliable, precise sonar returns
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Compatibility: Designed to work with Garmin chartplotters and a range of hull materials for versatile use on midsize boats
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What’s in the box: GT12M-THF transducer; jam nut; washer; documentation
This transducer helps you clearly distinguish fish and structure in varying conditions with reliable depth and temperature readouts on compatible Garmin displays. The bronze housing, drag-minimizing flush installation, and Auto-ID plug-and-play setup simplify installation and ongoing operation, delivering consistent sonar performance on midsize boats, whether you’re targeting offshore species or exploring nearshore structure.
