Selecting the Correct Garmin Transducer for Hull Material

When used with a compatible device, a transducer will transmit sonar pulses to find fish, structures, and water depth. When selecting a transducer, it is important to select one made of a material compatible with that of the vessel hull.

• Plastic transducers, most commonly built for transom-mounted and in-hull installations, can be used on fiberglass. While transom-mounted and in-hull plastic transducers can work on wooden boats, a plastic thru-hull transducer should never be used with this material. A Plastic transom mounted transducer will work on a metal boat, an in-hull transducer will not work on a metal boat.

• Bronze transducers, commonly built for thru-hull installations, can be used on fiberglass or wooden boats. Bronze transducers should never be used on a metal boat due to a potential chemical reaction that can damage the vessel.

• Stainless steel transducers, commonly built for thru-hull installations, can be used on fiberglass, metal, or wooden boats. Because stainless steel does not cause a chemical reaction with most metals, it is the most appropriate choice for a vessel constructed from metal.

See the Garmin Transducer Selection Guide to find the proper transducer for your chartplotter, vessel, and fishing / navigation needs.