With the Garmin Y Cable you can connect a Garmin GT30 transom mount scanning transducer to your compatible in-hull mount traditional transducer and compatible EchoMap/GPSMAP Chartplotter/Sonar Combo.
This adapter cable allows the compatible EchoMap/GPSMAP to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation.
For your list of compatible devices, click here.
Specifications: Garmin Y Cable – 12-pin transducer + 8-pin transducer to 12-pin Sounder
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