The Garmin GT15M-THF 12° 600W stainless steel thru-hull transducer is designed for midsize fishing and cruising boats, delivering precise sonar from a flush-mounted design that minimizes drag and optimizes beam orientation for clear returns.
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Transducer Power: 600 W
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Transducer Type: Thru-hull, flush-mounted stainless steel construction
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Transducer Frequency: Medium band CHIRP, 85–165 kHz
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Beam Width: 24–16 degrees
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Max Depth: 1,200 ft (saltwater); 1,900 ft (freshwater)
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Cable Length: 50 ft
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Hull Compatibility: Fiberglass, composite, steel, aluminum, wood
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Deadrise Compatibility: 0–20 degrees (12° variant supported; tilt versions available)
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Imaging Technology: Mid-band CHIRP for high-resolution returns and crisper targets
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Automatic Configuration: Auto-ID technology for plug-and-play setup with Garmin devices
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Depth/Speed/Temperature: Supports depth, speed, and temperature data
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Included Accessories: GT15M-THF transducer, jam nut, washer, thread isolator, hull isolator, and documentation
This transducer provides high-definition sonar that clearly defines fish arches, structure, and bottom depth on your chartplotter. Its flush-mounted design minimizes drag while maximizing beam orientation for reliable performance in both saltwater and freshwater. The broad 85–165 kHz coverage, 600 W power, and mid-band CHIRP deliver crisp targets even in cluttered conditions. With Auto-ID for effortless configuration, compatibility with a range of hull materials, and support for depth, speed, and temperature data, the GT15M-THF helps you fish smarter and navigate with confidence on a variety of vessel setups.
