Garmin GT15M-THF is a flush-mounted, stainless steel thru-hull transducer designed for midsize fishing and cruising boats. It minimizes drag while delivering pristine mid-band CHIRP sonar and reliable bottom readings to help you locate fish, structure, and depth with confidence.
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Transducer Type: Thru-hull, flush-mounted design in a stainless steel housing for a low-drag profile and precise beam orientation
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Power Handling: 600 W transducer power for strong, clear sonar returns with good target separation
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CHIRP & Frequency: Medium-band CHIRP across 85–165 kHz for high-definition targets and detailed structure
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Beam Width: 24–16 degrees, providing broad coverage at higher frequencies and tighter focus at lower frequencies
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Maximum Depth: Up to 1,200 ft in saltwater and 1,900 ft in freshwater
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Cable Length: 50 ft transducer cable for flexible routing and installation
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Deadrise Compatibility: Supports hull deadrise from 0–20 degrees (16–24 degrees hull range) without a fairing block
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Depth & Temperature: Depth and temperature data available for situational awareness
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Connector: 8-pin connector for robust, reliable electrical interface
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Auto-ID / Plug-and-Play: Auto-ID technology automatically configures sonar settings to the transducer for hassle-free setup
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Hull Materials Compatibility: Designed for fiberglass, composite, steel, aluminum, and wood hulls
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In the Box: GT15M-THF transducer with mounting hardware and documentation
The GT15M-THF’s through-hull, stainless steel housing minimizes drag on midsize boats while delivering crisp mid-band CHIRP returns for accurate fish, structure, and depth readings. Auto-ID simplifies installation—just plug in and let the transducer auto-configure to your display. With broad frequency coverage and versatile hull compatibility, it’s ready to enhance scanning efficiency across different hull types and fishing scenarios, from broad area sweeps to targeted hotspot investigations.
