Instruments

  1. Raymarine P7 Thru-Hull Low Profile Shorty Transducer - E26009

    $108.99
    1
  2. Airmar 110WX WeatherStation Instrument - WS-110WX

    $1,234.76
    0
  3. Standard Horizon External GPS Antenna - SCU-38

    $37.99
    0
  4. Lowrance Point-1 External GPS Antenna with Heading Sensor - 000-11047-002

    $321.00
    1
  5. 14% off

    Veratron GO Receiver

    $137.07 - $307.26
    $116.51 - $307.26
    0
  6. Raymarine ST950/P17 Speed and Temperature Transducer - E70687

    $233.99
    1
  7. Airmar ST-650 Speed/Temperature Replacement Insert

    $140.72 - $150.00
  8. Garmin GDT 43 NMEA 2000 Depth & Temperature Transducer - 010-01749-10

    $249.99
    0
  9. Maptech Navigation USB GPS Receiver - MTUSBGPS

    $94.99
    0
  10. Raymarine Masthead Cable and Base - A28163

    $228.99
    0
  11. Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

    $166.50
  12. Standard Horizon GPS Smart Antenna - SCU-31

    $120.99
    1
  13. Airmar WeatherStation USB Interface Box - WS-USB

    $261.50
  14. Airmar S63 Transom Mount Speed Sensor - S63-0

    $41.00
  15. 64% off

    Raymarine T911 Paddle Wheel Replacement Kit - TA900

    $39.99
    $14.00
  16. Garmin GDT 43 Depth & Temperature Transducer - 010-01749-00

    $129.99
    0
  17. Lowrance Temperature Sensor - 000-11520-001

    $108.99
    0
  18. 69% off

    Raymarine Thru-Hull Retractable Transducer - T912

    $168.99
    $50.70
    0
  19. Raymarine ST300/P371 Thru-Hull Low-Profile Shorty Transducer - E26008

    $121.99
    0
  20. Raymarine ST69 Transom-Mount Transducer - E26005

    $121.99
    0
  21. Raymarine Wind Transmitter Bearing Service Kit - TA122

    $99.99
    1
  22. Raymarine Anemometer Replacement Wind Cup Set - TA101

    $33.99
  23. Furuno P79 In-Hull Adjustable-Angle Smart Sensor - 235-IHF

    $367.99
    0
  24. 15% off

    Raymarine ST900 Paddle Wheel Replacement Kit - R70961

    $84.99
    $72.24
  25. 15% off

    Raymarine ST950 Paddle Wheel Replacement Kit - R70972

    $84.99
    $72.24
  26. Airmar P79 In-Hull Transducer - 235 kHz

    $145.00 - $429.00

About Instruments

Marine Instruments

Sailing navigation is made easy with a variety of electronics offered by Defender. Marine navigation tools, bundles, and a full line of accessories cover all boat navigation needs. Multifunction marine instruments offer an alternative when installation space and budget are tight.

Which marine instruments are important to sailing?

Anyone on the water can benefit from as much information as possible but it could be argued that sailing navigation and wind indicators are the essentials to skippers on sailboats. Depth finders and speed monitors might be seen as sailing frivolity, but any sailor would be happy to have these marine instruments in their electronics package.

Sailing into the wind

Technically there is no such thing. Sailing directly into the wind cuts down the angle and doesn't allow the sails to capture the wind, which propels the boat. Here's where sailing navigation tools and packages come into play. Wind indicators monitor the strength and direction of the wind while navigating correctly to capture the wind is essential.

How to navigate your cruise

Here's where depth finders, plotters, and temperature gauges become a more important part of your sailing navigation package. Cruising on your sailboat means less about wind and more about other boats, obstacles, and, of course, finding your way home. Defender Marine offers full sailboat navigation packages and multifunction marine electronics units for the family sailboat and the competitive team!