Instruments

  1. Airmar B17/B617/DT800 Replacement Rubber Washer - 09-452

    $4.55
    1
  2. Airmar P79 In-Hull Transducer O-Ring - 09-518-18

    $5.15
    1
  3. Airmar 33-108 Spares Kit O-Ring - 09-146

    $5.39
  4. 59% off

    Veratron AquaLink NavControl Display Bezel - A2C3997600001

    $17.09
    $6.84
    0
  5. 30% off

    Raymarine Retro Instrument Bezel - A80355

    $13.12
    $9.18
    1
  6. 59% off

    Raymarine Wireless Flush Thru-Hull Fitting for Transducer - T943

    $37.99
    $15.20
    0
  7. Faria Universal Pitot Kit - 91109

    $16.13
  8. B&G Triton2 Sun Cover - 000-13722-001

    $16.93
    0
  9. Simrad GO7 XSR and Vulcan 7R Bezel - 000-14230-001

    $17.99
    0
  10. Airmar P79 Replacement Mounting Base and Locking Ring - P79-FL

    $18.00
    2
  11. Simrad AP44 Autopilot Controller Suncover - 000-13724-001

    $18.17
    0
  12. Simrad GO5 Suncover - 000-13168-001

    $18.84
  13. Airmar 33-108 Wheel Kit Replacement Paddlewheel - 20-301-01

    $18.95
  14. Airmar ST-200 Spare Wheel Kit - 33-114

    $18.95
  15. Airmar S300/ST300 Spare Paddlewheel Kit - 33-350-01

    $19.80
    1
  16. Airmar P65/ST69 Transducer Paddlewheel Kit - 33-398-01

    $19.99
  17. Airmar P32 Spare Wheel Kit

    $19.99
  18. Garmin gWind & GND 10 Replacement Propeller - 010-12117-08

    $20.99
  19. Airmar ST-550/100 Spare Wheel Kit - 33-108

    $20.99
  20. Simrad GO9 XSE and Vulcan 9 Dash Mount Kit - 000-13699-001

    $22.99
    0
  21. Airmar S63/P37/P52 Spare Wheel Kit - 33-110

    $22.99
  22. Raymarine Instrument Display Bezel - R22168

    $23.99
    0
  23. Raymarine Retro Instrument Sun Cover - A80357

    $23.99
    1
  24. Raymarine Spade Connectors - Q085

    $23.99
    0
  25. Raymarine Sun Cover - R22169

    $23.99
    0
  26. Raymarine Suncover (261312) - A80358

    $23.99
    0
  27. Airmar Replacement Blanking Plug Assembly without Valve - 33-486-01

    $23.99
    1
  28. Airmar P317 Plastic Taper-Flush Housing - 33-092-01

    $23.99
  29. Airmar P217 Plastic Flush Mount Housing - 33-217

    $23.99
  30. Simrad NSX Corner Clip - 000-15822-001

    $24.99
    1
  31. Airmar ST800 Blanking Plug Assembly - 33-481-01

    $24.99
  32. Veratron OceanLink TFT Display Bezel - 7" - A2C1697540001

    $25.19
    0
  33. Standard Horizon External GPS Antenna - SCU-38

    $25.99
    0
  34. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $25.99
  35. Airmar Replacement Blanking Plug Assembly with Valve - 33-482-01

    $25.99
  36. Airmar ST-800 Paddlewheel Kit - 33-493-01

    $25.99
  37. Veratron AcquaLink TFT Display Bezel - 7" - A2C3995200001

    $26.99
    0
  38. 10% off

    B&G Zeus S Suncover

    $29.99 - $34.99
    $26.99 - $34.99
    0
  39. Lowrance Elite FS Protective Suncover

    $26.99 - $31.99
    0
  40. Airmar ST600 Blanking Plug Assembly - 20-600

    $27.99
  41. Simrad GO9 XSE Suncover - 000-13698-001

    $27.99
  42. Simrad NSX and Vulcan Multifunction Display Dash Mount Kit

    $28.99 - $30.99
    0
  43. 79% off

    Raymarine Thru/In-Hull Depth Transducer - 2" (50 mm) - T905

    $143.99
    $29.77
  44. Raymarine ST Paddle Wheel Kit - R69015

    $29.99
    1
  45. Simrad evo3/3S Suncover

    $29.99 - $44.99
  46. Garmin GST 43 Replacement Paddle Wheel - 010-12344-00

    $30.99
  47. Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

    $31.99
  48. Simrad NSS9 evo3 and Zeus3 9 Gimbal Mounting Bracket - 000-13758-001

    $32.99
    0
 
1 / 5Next

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!