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.

289 products

  • Raymarine

    Raymarine Transom Mount Bracket f/HV-100 [R70651]

    Regular price $49.99 USD
    Sale price $49.99 USD Regular price $0.00 USD

    Transom Mount Bracket for HV-100Raymarine Transom Mount Bracket specifically for Raymairne's HV-100. Specifications: Type: Mounting Brackets Box Dimensions: 2"H x 4"W x 10"L WT: 0.46 lbs...

  • Save $12.00 USD
    Garmin

    Garmin GT54UHD-TM Ultra High-Definition Scanning Sonar All-In-One Transducer [010-12909-00]

    Regular price $487.99 USD
    Sale price $487.99 USD Regular price $499.99 USD

    GT54UHD-TM Ultra High-Definition Scanning Sonar All-In-One TransducerAll-In-One Transducer One transducer provides the highest resolution ClearVü and SideVü scanning sonar images available and amazingly clear high wide...

  • Garmin

    Garmin Heavy-Duty Transom Mount Bracket w/Spray Shield [010-12006-11]

    Regular price $39.99 USD
    Sale price $39.99 USD Regular price $0.00 USD

    Heavy-Duty Transom Mount Bracket w/Spray ShieldMount the transducer on the transom of your boat so it remains in the water at all times to provide excellent...

  • Garmin

    Garmin GT30-TM DownVu/SideVu 12-Pin Transom Mount Transducer f/GCV 10 - 20' Cable [010-01961-00]

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

    DownVü™/SideVü™ 12-Pin Transom Mount Transducer for GCV™ 10Get ultra-clear sonar pictures of objects, structure and fish that pass below and to the side of your boat...

  • Garmin

    Garmin Transom Mount Depth/Temp 50/200kHz - 8-Pin [010-10272-10]

    Regular price $99.99 USD
    Sale price $99.99 USD Regular price $0.00 USD

    Transom Mount Depth/Temp 50/200kHz - 8-PinThis plastic transom mount can be used to replace the dual frequency transducers included with many Garmin units.The 500 W 8-pin...

  • Garmin

    Garmin B175L Bronze 20 Degree Thru-Hull Transducer - 1kW, 8-Pin [010-11938-22]

    Regular price $1,849.99 USD
    Sale price $1,849.99 USD Regular price $0.00 USD

    Airmar B175Lw/20° Tilt1kWFlush-mounted bronze housing protrudes less than 1/4" outside hull and can sit on trailer rollers/bunks without damage. Tilted element inside the transducer accommodates all...

  • Save $40.00 USD
    Airmar

    Airmar B60 Bronze Thru-Hull Transducer w/Humminbird #9 Plug - 7-Pin - 12 [B60-12-HB]

    Regular price $399.99 USD
    Sale price $399.99 USD Regular price $439.99 USD

    B60 Bronze Thru-Hull Transducer w/Humminbird #9 Plug - 7-Pin - 12ºThe bronze B60-12º provides a vertical beam without a fairing. Inside the housing, the ceramic element...

  • Navico

    Navico HDI Skimmer Med/Hight 9-Pin Transom Mount [000-12728-001]

    Regular price $138.00 USD
    Sale price $138.00 USD Regular price $0.00 USD

    HDI Skimmer Med/Hight 9-Pin Transom MountFeatures: HDI Skimmer Color: Black  Med/High 455/800kHz  xSonic Transducer Specifications: Cable Length (Feet): 20' Chirp: Medium/High Imaging: Standard Mounting Style: Transom...

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