Collection: Marine Navigation & Instruments - Transducers

Turn underwater signals into information you can use.

Explore marine transducers and accessories designed to support fishfinders, sonar systems, depth sounders and compatible marine electronics. The right transducer is essential for gathering accurate underwater data, from depth and water temperature to fish targets and bottom structure.

Shop CHIRP transducers, thru-hull transducers, transom-mount transducers, in-hull transducers, trolling motor transducers, side-imaging and down-imaging transducers, depth and temperature sensors, mounting hardware, cables and transducer accessories for fishing boats, powerboats, sailboats, yachts and other compatible vessels.

Whether you're replacing an existing transducer, upgrading your sonar capabilities or installing a new fishfinder or sounder system, Roam & Harbor makes it easier to find transducers and installation accessories for your marine electronics setup.

Always verify sonar technology, frequency, power rating, mounting style, hull material, connector type, deadrise requirements and electronics compatibility before selecting a transducer.

Read the water. See what’s below. Keep exploring.

268 products

  • Airmar

    Airmar 164WR-2 Transducer Hull Nut Wrench [164WR-2]

    Regular price $68.00 USD
    Sale price $68.00 USD Regular price $0.00 USD

    164WR-2 Transducer Hull Nut WrenchA single-handed wrench to tighten the hull nut on B164, SS164 and SS264 housings.You can use wrench 164WR-4 to brace the housing...

  • Garmin

    Garmin 4-Pin Transducer to 12-Pin Sounder Adapter Cable [010-12718-00]

    Regular price $29.99 USD
    Sale price $29.99 USD Regular price $0.00 USD

    4-Pin Transducer to 12-Pin Sounder Adapter CableConnect a 4-pin transducer to a 12-pin sonar port on your compatible marine device with this adapter cable.WARNING: This product...

  • Garmin

    Garmin GST 43 Thru-Hull Speed/Temperature Transducer w/GST 10 Bundle [010-04284-00]

    Regular price $209.99 USD
    Sale price $209.99 USD Regular price $0.00 USD

    GST™ 43 Thru-Hull Speed/Temperature Transducer w/GST™ 10 BundleThe GST 43 is a thru-hull transducer that can read water speed and temperature. The transducer can retrofit an...

  • Save $16.00 USD
    Garmin

    Garmin GT23M-TH Stainless Steel, TH Mount Transducer, Mid-Band CHIRP/CHIRP DownVu - 260/455kHz, 500W, 8-Pin [010-12404-10]

    Regular price $633.99 USD
    Sale price $633.99 USD Regular price $649.99 USD

    GT23M-TH Stainless Steel, TH Mount Transducer, Mid-Band CHIRP/CHIRP DownVü - 260/455kHz, 500W, 8-PinPerfect for coastal and offshore fishermen who want CHIRP traditional sonar and CHIRP ClearVü...

  • Save $140.00 USD
    Garmin

    Garmin GT56UHD-THP Thru-Hull Mount Transducer - Pair [010-02732-11]

    Regular price $1,509.99 USD
    Sale price $1,509.99 USD Regular price $1,649.99 USD

    GT56UHD-THP Thru-Hull Mount Transducer - PairThis all-in-one transducer offers ultimate versatility, featuring Ultra High-Definition ClearVü and SideVü scanning sonars, high wide CHIRP traditional sonar, and more,...

  • Raymarine

    RaymarineRealVision 3D Transducer Extension Cable - 5M(16') [A80476]

    Regular price $139.99 USD
    Sale price $139.99 USD Regular price $0.00 USD

    RealVision 3D Transducer Extension Cable - 5M(16')RealVision 3D Transducer Extension Cables work with both the transom mounted RV-100, as well as through-hull RV-200 and RV-300 series...

  • Garmin

    Garmin Trolling Motor Shaft Mount f/Panoptix LVS32 [010-12784-01]

    Regular price $34.99 USD
    Sale price $34.99 USD Regular price $0.00 USD

    Trolling Motor Shaft Mount for Panoptix™ LVS32Mount a compatible Panoptix transducer on the shaft of your trolling motor with this kit. It's adjustable design fits all...

  • Garmin

    Garmin GT15M-TM Transom Mount Transducer - 8-Pin [010-12402-10]

    Regular price $229.99 USD
    Sale price $229.99 USD Regular price $0.00 USD

    GT15M-TM Transom Mount Transducer - 8-PinGT15M-TM transducer is perfect for fishermen who want clear bottom definition under the boat as well as crisp, clear and wide...

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