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Marine & Boat Electronics - Electronic Sailing Instruments

Unlike the tall ships of yore, today's ships are fairly bristled with electronic sailing instruments.
Some marine and boat electronics make sailing safer and others enhance your enjoyment on the water.
For safety reasons, boats shouldn't even leave the dock without instruments like radar and VHF radio.
An autopilot will make your trip easier, while a fishfinder can make it more exciting!

Electronic sailing instruments

At Defender, we have a wide selection of boat electronics and electronic sailing instruments for sale.
These are great items to take with you on your next great sailing adventure.
Short descriptions of some of the most useful are below.


  • A radio is only as good as the antenna through which it's getting a signal.
  • That's why you'll want the very best radio antenna you can afford.
  • A multi-purpose antenna will work equally well for both VHF and AIS radios.


  • An autopilot steers the boat for you.
  • This helps reduce fatigue and frees you up to do more important or interesting things.
  • If it's interfaced with GPS, it acts like the cruise control in your car.
  • This lets you get where you're going quicker and with less fuel consumption.

  • Navigation & Fishfinders

    Are you looking for help navigating and finding fish?
    It might be time to invest in a unit that can do both.
    A network multifunctional display (MFD) can combine radar, sonar, fishfinder, and more in one compact unit.


  • Marine radar is a real lifesaver when visibility is poor.
  • It can 'see' through thick fog, heavy storms, or moonless nights so that you're not navigating blindly.
  • Just like personal flotation devices (PFDs), you shouldn't leave your berth without this marine electronic!

  • Satellite Messengers

    Are you a long-distance cruiser?
    A satellite messenger will let you stay in touch with friends and relatives from wherever your travels take you.
  • This marine electronic can also summon help by supplying rescuers with the name of your boat and its exact location.
  • These easy-to-set-up devices are often multifunctional, incorporating any or all the other electronics listed here!

  • Transducers

    A transducer lets you see what's in the water under and around your boat.
    Whether it's a school of fish or an underwater obstruction, the transducer translates changes in water density into visual pictures.

    Marine electronics for sale at Defender

    We have all the marine and boat electronic gear you could ever ask for, along with everything else you need to embark on a day cruise or a sailing adventure around the world!
    Contact us today for the finest quality marine equipment and electronics.