Collection: Marine Navigation & Instruments - Instruments

Essential information for every journey on the water.

Explore marine navigation instruments designed to keep important vessel, environmental and navigation data clearly visible at the helm. From depth and speed to wind, heading and other critical information, the right marine instruments help create a more informed and capable navigation station.

Shop marine instruments, multifunction displays, depth instruments, speed and log instruments, wind instruments, heading displays, digital boat instruments, sensors, transducers and instrument accessories for sailboats, powerboats, fishing boats, cruisers, yachts and other marine applications.

Whether you're replacing an existing instrument, upgrading your helm, adding new sensors or building an integrated marine electronics system, Roam & Harbor makes it easier to find navigation instruments and accessories for your vessel.

Always verify display size, data requirements, sensor and transducer compatibility, network protocol, power requirements, mounting dimensions and manufacturer compatibility when selecting marine instruments.

Read the conditions. Know your vessel. Navigate with confidence.

50 products

  • Save $5.00 USD
    Raymarine

    Raymarine i60 Wind Display System w/Masthead Wind Vane Transducer [E70150]

    Regular price $1,094.99 USD
    Sale price $1,094.99 USD Regular price $1,099.99 USD

    i60 SeaTalkng Instruments - Wind w/Wind Vane TransducerThe all-new i60 Instruments from Raymarine offer boaters an excellent combination of great looks, high performance and extreme value....

  • Raymarine

    Raymarine i50 Depth Display [E70059]

    Regular price $549.99 USD
    Sale price $549.99 USD Regular price $0.00 USD

    i50 SeaTalkng Instruments - DepthThe all-new i50 Instruments from Raymarine offer boaters an excellent combination of great looks, high performance and extreme value. Designed to accommodate...

  • Davis Instruments

    Davis WindTrak Light [3200]

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

    WindTrak Light (for 3100/3150)Light up the reflector tabs and vane on your WindTrak for easy viewing at night with WindTrak Light. Waterproof and non-corroding silver parts...

  • Davis Instruments

    Davis Rudder Position Indicator [385]

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

    Rudder Position IndicatorAwareness of the rudder angle is an important safety factor. This is especially true while moving in and out of your berth, drawing alongside...

  • Davis Instruments

    Davis J-Base f/WindTrak 15 [3155]

    Regular price $11.99 USD
    Sale price $11.99 USD Regular price $0.00 USD

    J-BASE for WindTrak 15This optional mount for WindTrak 15 provides more versatility and reduces overall weight aloft by 15 grams when substituted for standard WindTrak 15...

  • Save $39.01 USD
    SI-TEX

    SI-TEX SST-110 Sea Temperature Gauge - No Transducer [SST-110]

    Regular price $399.99 USD
    Sale price $399.99 USD Regular price $439.00 USD

    SST-110 Sea Temp GaugeThe right tool at the right price for all saltwater anglers, both inshore and offshore.An affordable, waterproof, analog sea surface temp instrument with...

  • Raymarine

    Raymarine Z195 Rotavecta Masthead Unit [Z195]

    Regular price $324.99 USD
    Sale price $324.99 USD Regular price $0.00 USD

    RotaVecta Wind TransducerSupplied w/20M (65') CableCompatible Models: ST60+ ST40 Specifications: Instrument Function: Wind Box Dimensions: 5"H x 7"W x 21"L WT: 2.65 lbs UPC: 723193100509

  • Save $17.50 USD
    Davis Instruments

    Davis Mounting Tripod [7716]

    Regular price $157.50 USD
    Sale price $157.50 USD Regular price $175.00 USD

    Mounting TripodOptional tripod makes installation even easier. Brackets at the base of each leg tilt to mount on your roof or uneven terrain. Made of galvanized...

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