Instruments

  1. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $46.48
  2. Airmar B17/B617/DT800 Replacement Rubber Washer - 09-452

    $6.74
  3. Airmar B17 Bronze Housing - 33-100

    $174.73
  4. Airmar ST-200 Spare Wheel Kit - 33-114

    $26.18
  5. Airmar Raymarine ST600 Spare Wheel Kit - 33-250

    $34.33
  6. Airmar P52 Transom Mount DST Triducer - P52-200-6G

    $182.85
  7. Airmar D800 170kHz Plastic Retractable Thru-Hull Transducer - D800P-170-BG

    $261.15
  8. Airmar P79 Replacement Screw Pack - P79-SCREWPACK

    $7.24
  9. Airmar P66 Plastic Cover Assembly - 04-349-02

    $18.00
  10. Airmar 33-108 Spares Kit O-Ring - 09-146

    $7.87
  11. Airmar P32 Transom Mount DST Triducer - P32-200-VDO

    $161.23
  12. Airmar 33-108 Paddle Wheel Kit Replacement Shaft - 01-088-1

    $9.08
  13. Airmar ST600 Blanking Plug Assembly - 20-600

    $38.38
  14. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $35.68
  15. Airmar P39 Transom Wheel Assembly - 33-473-01

    $32.98
  16. Airmar P39 Replacement Bracket Kit - 33-477-01

    $32.98
  17. Airmar P32 Spare Wheel Kit

    $27.58
  18. Airmar WeatherStation Cable Extension Adapter

    $10.83 - $15.96
  19. Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

    $319.20
  20. Airmar WeatherStation Cable Adapter - 04-564-03

    $15.73
  21. Airmar 33-114 Spares Kit O-Ring - 09-145

    $7.66
  22. Airmar DX900 Installation Kit and Housing - 20-1256-01

    $103.18
  23. Airmar DX900+ Thru-Hull Smart Electromagnetic Speed Sensor - DX900-ST-0

    $1,106.25
  24. Airmar 33-113/33-114 Paddle Wheel Kit Replacement Shaft - 01-088-5

    $9.16
  25. Airmar 33-108 Wheel Kit Replacement Paddlewheel - 20-301-01

    $26.18
  26. Airmar Snap-In Smart Sensor Cap - 20-386-03

    $14.92
  27. Airmar DT800 Bronze Installation Kit - 20-398-02

    $243.60
  28. Airmar Stuffing Tube Bushings - 20-488-01

    $42.43
  29. Airmar ST650 Valve Assembly - 20-603

    $30.28
  30. Airmar S63/P37/P52 Spare Wheel Kit - 33-110

    $31.63
  31. Airmar B55 Speed Only Thru-Hull Triducer Spare - 33-125

    $37.03
  32. Airmar B120 Bronze Low-Profile Housing - 33-340-01

    $204.45
  33. Airmar P8 Shorty Sensor Low-Profile Housing - 33-360-01

    $28.93
  34. Airmar Shorty Sensor Speed/Temperature Low-Profile Housing - 33-361-01

    $42.43
  35. Airmar P398 Shorty Sensor Speed/Temperature Taper-Flush Housing - 33-444-02

    $69.43
  36. Airmar 235 kHz NMEA 0183 Bronze Tilted Element Smart Sensor

    $1,014.46 - $1,015.81
  37. Airmar 235 kHz NMEA 0183 Plastic Tilted Element Smart Sensor

    $880.80 - $882.15
  38. Airmar 235 kHz NMEA 0183 Stainless Tilted Element Smart Sensor

    $1,114.36
  39. Airmar 235 kHz NMEA 2000 Stainless Tilted Element Smart Sensor

    $668.86
  40. Airmar P79 200 kHz In-Hull Transducer

    $223.35
  41. Airmar P39 Transom Mount Smart Sensor - P39-DT-N2

    $433.95
  42. Airmar 150WXS NMEA 0183/AG WeatherStation - WS-150WXS-RS232

    $2,140.35
  43. Airmar 150WXS NMEA 0183/2000 WeatherStation - WS-150WXS-RS422

    $2,140.35
  44. Airmar 200WX NMEA 0183/2000 IPX7 WeatherStation - WS-200WX-RS232-IPX7

    $2,090.40
  45. Airmar 110WX NMEA 0183/2000 WeatherStation - WS-110WX-RH

    $1,392.43
  46. Airmar 110WXS NMEA 0183/AG WeatherStation - WS-110WXS-RS232

    $1,925.70
  47. Airmar 110WXS NMEA 0183/2000 WeatherStation - WS-110WXS-RS422

    $1,925.70
  48. Airmar Bronze Thru-Hull High Precision Temperature Sensor - T42-A

    $309.75

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!