Instruments

  1. Airmar P39 Transom Wheel Assembly - 33-473-01

    $32.80
  2. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $46.28
  3. Airmar D800 Plastic Retractable Thru-Hull Transducer - 170kHz - D800P-170-BG

    $326.12
  4. 9% off

    Faria Chesapeake White SS Depth Sounder

    $297.40 - $338.00
    $297.40 - $304.26
    0
  5. Standard Horizon GPS Smart Antenna - SCU-31

    $144.78
    0
  6. Airmar DX900+ Thru-Hull Smart Electromagnetic Speed Sensor - DX900-ST-0

    $1,679.22
  7. Airmar S63 Transom Mount Speed Sensor - S63-0

    $58.00
  8. Furuno DT-800 Bronze Depth/Temperature Thru-Hull Smart Sensor - DT-800MSF

    $542.42
    0
  9. 9% off

    SI-TEX External GPS Antenna - MDA-1-ANT

    $157.38
    $141.70
    0
  10. Veratron Ocean Link TFT Multifunction Display - 7" - A2C1865330001

    $1,428.16
    0
  11. Airmar P79 In-Hull Transducer O-Ring - 09-518-18

    $6.69
    3
  12. Airmar DX900 Installation Kit and Housing - 20-1256-01

    $105.60
  13. Airmar P317 Plastic Taper-Flush Housing - 33-092-01

    $32.10
  14. Airmar UST800/850 NMEA 2000 Ultrasonic Processor - UST8-ECP

    $1,190.62
  15. Lowrance Temperature Sensor - 000-11520-001

    $143.38
    0
  16. Simrad DST-810 N2K Bronze Triducer Multisensor - 000-15736-001

    $461.18
  17. 9% off

    Faria Dress White Depth Sounder

    $319.78 - $343.58
    $309.28 - $319.78
    0
  18. Airmar ST-550/100 Spare Wheel Kit - 33-108

    $28.95
  19. Airmar ST-200 Spare Wheel Kit - 33-114

    $27.20
  20. Airmar UST850 Ultrasonic Smart Sensor Insert - UST850-INS

    $819.62
  21. Airmar 200WX NMEA 0183/2000 RS232 WeatherStation

    $2,514.31 - $2,762.38
  22. Faria Chesapeake Black SS Dual Depth/Temp Sounder with Transducer - 13752

    $391.20
  23. Simrad Pole Mount Kit for HS75 GNSS Compass - 000-15686-001

    $216.18
  24. Airmar 33-108 Spares Kit O-Ring - 09-146

    $7.00
  25. Airmar S63/P37/P52 Spare Wheel Kit - 33-110

    $32.80
  26. Airmar P39 Replacement Bracket Kit - 33-477-01

    $32.10
    1
  27. Airmar 200WX NMEA 0183/2000 IPX7 WeatherStation - WS-200WX-RS232-IPX7

    $2,785.54
  28. Scout GPS/GLONASS Antenna - 3" (7 cm) - NAV-6

    $151.78
  29. B&G Nemesis Sailing Display Hub - 000-15683-001

    $571.80
    0
  30. Maptech Navigation USB GPS Receiver - MTUSBGPS

    $139.18
    0
  31. Veratron LinkUp Intelligent Battery Sensor - B00043901

    $150.52
    0
  32. Airmar B17/B617/DT800 Replacement Rubber Washer - 09-452

    $5.85
    1
  33. Airmar P217 Plastic Flush Mount Housing - 33-217

    $32.10
  34. Airmar P398 Shorty Sensor Speed/Temperature Taper-Flush Housing - 33-444-02

    $77.60
  35. Airmar 150WX NMEA 0183/2000 WeatherStation - WS-150WX-RS232

    $1,819.20
  36. Airmar P52 Transom Mount DST Triducer - P52-200-6G

    $223.21
  37. Airmar P8 Retractable Shorty Series Depth Sensor - P8-200-0

    $237.20
  38. Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

    $422.51
  39. Airmar 150WX NMEA 0183/2000 WeatherStation

    $1,819.20
  40. Faria Chesapeake White SS Dual Depth/Temp Sounder with Transducer - 13852

    $413.60
  41. SI-TEX Seawater Temperature Indicator - SST-110TS

    $643.20
    0
  42. SeaStar Teleflex/Sierra In-Dash Digital Depth Finder with Transducer - 2" - 26000P

    $329.46
    1
  43. Maretron N2KView Vessel Monitoring & Control Touchscreen Display - TSM810C-01

    $3,681.22
    0
  44. Airmar P79 Replacement Screw Pack - P79-SCREWPACK

    $6.38
  45. Airmar P66 Plastic Cover Assembly - 04-349-02

    $17.40
  46. Airmar 33-114 Spares Kit O-Ring - 09-145

    $6.80
  47. Airmar 33-108 Wheel Kit Replacement Paddlewheel - 20-301-01

    $25.80
  48. Airmar Shorty Sensor Speed/Temperature Low-Profile Housing - 33-361-01

    $42.60

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!