Instruments

  1. Raymarine Wind Transmitter Battery Pack & Seal Kit - TA125

    $85.99
  2. Standard Horizon GPS Smart Antenna - SCU-31

    $120.99
    1
  3. Veratron Ocean Link TFT Multifunction Display - 7" - A2C1865330001

    $1,421.01
    0
  4. Raymarine ST300/P371 Thru-Hull Low-Profile Shorty Transducer - E26008

    $121.99
    0
  5. Garmin GNX Marine Display Instrument

    $374.99
    0
  6. Veratron VDO NMEA 2000 Wind Sensor - A2C59501984

    $675.99
    2
  7. Raymarine ST950/P17 Speed and Temperature Transducer - E70687

    $233.99
    1
  8. Airmar Wiring Box with Screw Terminals - 33-035-BOX

    $65.05
    1
  9. Airmar NMEA 2000 Stainless Tilted Element Smart Sensor - 235 kHz

    $624.00
  10. Furuno GNSS GPS Receiver - GP340

    $319.99
  11. Maretron GPS Antenna/Receiver - GPS200-01

    $346.99
    0
  12. Raymarine B17 Thru-Hull Retractable Transducer - M78717

    $206.99
    0
  13. Raymarine ST60 Wind Transducer Service Kit - A28167

    $69.99
    1
  14. Davis Instruments WeatherLink Console - 6313

    $449.99
  15. Raymarine Raystar RS150 GPS Sensor - E70310

    $348.99
    2
  16. Airmar Simrad P79 In-Hull Adjustable Angle Transducer - P79-BL

    $199.00
    0
  17. Lowrance Point-1 AP GPS and Heading Antenna - 000-12930-002

    $321.00
    1
  18. Raymarine i50 Speed System with ST900/P120 Retractable Speed/Temp Thru-Hull Transducers - T70583

    $588.99
    1
  19. Airmar UST850 Ultrasonic Smart Sensor Insert - UST850-INS

    $585.00
  20. Garmin Airmar P79 In-Hull NMEA 2000 Smart Transducer - 010-11394-00

    $314.99
    0
  21. Airmar P617V Plastic Low-Profile Housing with Valve - 33-510-01

    $56.43
    2
  22. Raymarine DT800 Thru-Hull Tilted Element Smart Sensor - A22112

    $399.00
    0
  23. Faria Chesapeake White SS Depth Sounder

    $223.99 - $284.99
    0
  24. Airmar WeatherStation USB Interface Box - WS-USB

    $261.50
  25. B&G WS300 Wind Vane Mast Cable - 000-14397-001

    $160.99
    0
  26. Raymarine Spade Connectors - Q085

    $20.99
    1
  27. Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

    $30.42
    1
  28. Airmar P79 Replacement Mounting Base and Locking Ring - P79-FL

    $18.00
    4
  29. Airmar ST300 Thru-Hull Shorty Speed/Temperature Sensor - ST300-FISO

    $108.60
  30. Raymarine P19 Thru-Hull Low Profile Tilted Element Transducer - M78713-PZ

    $179.99
    0
  31. Garmin GNX Large Format Marine Display Instrument

    $949.99
    0
  32. Airmar U200 NMEA 2000 to USB Gateway - WS2-USB

    $650.00
  33. Em-Trak GPS Antenna - 304-0055

    $100.80
  34. Garmin GDT 43 NMEA 2000 Depth & Temperature Transducer - 010-01749-10

    $249.99
    0
  35. Raymarine i50 Speed Instrument Display - E70058

    $494.99
    0
  36. 10% off

    Raymarine Long-Arm Forward Wind Transducer - R28171

    $411.29
    0
  37. Raymarine ST Paddle Wheel Kit - R69015

    $28.99
    2
  38. Simrad DST-810 N2K Bronze Triducer Multisensor - 000-15736-001

    $419.00
  39. Garmin GNX Wireless Sail Pack 43 - 010-01616-30

    $957.99
    0
  40. Raymarine Alpha Performance Display Power Cable

    $64.99 - $162.99
    0
  41. Lowrance Fuel Flow Sensor - 000-11517-001

    $237.00
    3
  42. Furuno GPS/WAAS Navigator with GPS Antenna - GP39

    $545.00
    0
  43. Standard Horizon External GPS Antenna - SCU-38

    $37.99
    0
  44. Raymarine P7 Thru-Hull Low Profile Shorty Transducer - E26009

    $108.99
    1
  45. Faria Euro Black Depth Sounder

    $268.99 - $313.99
    0
  46. Airmar S300/ST300 Spare Paddlewheel Kit - 33-350-01

    $18.00
    2
  47. Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

    $166.50
  48. Furuno Remote Display - RD33

    $695.00
    0

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!