The Garmin GT30-TM and GT8HW-IH Transducer Bundle is a high-performance sonar solution designed specifically for boats with fiberglass hulls. This dual-transducer package is ideal for anglers who want a “best of both worlds” setup: ultra-clear scanning sonar for finding structure and a specialized in-hull transducer for maintaining depth readings at high speeds.
By utilizing two separate units, this bundle ensures that your high-speed travel doesn’t interfere with your scanning capabilities. The in-hull unit sits safely inside the boat to avoid turbulence, while the transom-mount unit provides the heavy-duty scanning power.
Key Components
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GT30-TM (Transom Mount): A dedicated scanning transducer that provides CHIRP ClearVü and CHIRP SideVü. It excels at delivering near-photographic images of structure and fish beneath and to the sides of your boat.
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GT8HW-IH (In-Hull Mount): A CHIRP traditional sonar (150-240 kHz) designed to be mounted inside a solid fiberglass hull. This allows the signal to “shoot through” the hull, providing excellent bottom tracking and fish arches even when the boat is on plane.
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12-pin Y-Cable: Includes the necessary adapter to combine the signals from both transducers into a single 12-pin port on your compatible Garmin chartplotter.


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