Instruments

  1. Garmin GST 43 Replacement Paddle Wheel - 010-12344-00

    $34.99
  2. Raymarine ST900/B120 Thru-Hull Transducer - E70686

    $304.99
  3. Airmar P217 Plastic Flush Mount Housing - 33-217

    $22.50
  4. Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

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

    $120.99
    1
  6. Maretron Depth/Speed/Temperature Retractable Smart Triducer - DST110-01

    $416.99
    0
  7. 10% off

    Furuno Airmar DST810 Smart Multi Sensor - DST-810MSF

    $411.99
    $370.79
    0
  8. Digital Yacht WND100 Wind Transducer - ZDIGWND100

    $417.99
  9. Airmar WeatherStation USB Interface Box - WS-USB

    $261.50
  10. Airmar ST800 Installation Kit - 20-410-01

    $55.39
  11. Airmar ST-550/100 Spare Wheel Kit - 33-108

    $20.25
  12. Airmar ST-200 Spare Wheel Kit - 33-114

    $19.00
  13. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $32.63
  14. Airmar 150WX NMEA 0183/2000 WeatherStation - WS-150WX-RS232

    $1,299.00
  15. Airmar S63 Transom Mount Speed Sensor - S63-0

    $41.00
  16. 64% off

    Raymarine T911 Paddle Wheel Replacement Kit - TA900

    $39.99
    $14.00
  17. SI-TEX External GPS Antenna - MDA-1-ANT

    $114.99
    0
  18. Simrad IS35 Digital Display - 000-13334-001

    $409.00
    0
  19. FLIR AX8 Ball & Socket Mount - 261-2319-00

    $73.99
    0
  20. Digital Yacht GPS Sensor/Antenna - USB - ZDIGGPS160USB

    $249.99
    0
  21. Airmar 33-108 Spares Kit O-Ring - 09-146

    $4.57
  22. Airmar P79 In-Hull Transducer O-Ring - 09-518-18

    $4.35
    5
  23. Airmar P39 Replacement Bracket Kit - 33-477-01

    $22.50
    1
  24. Garmin GDT 43 Depth & Temperature Transducer - 010-01749-00

    $129.99
    0
  25. B&G 20/20HV 3-Way Mast Bracket - BGH220013

    $258.99
    0
  26. Lowrance Temperature Sensor - 000-11520-001

    $108.99
    0
  27. Faria Universal Pitot Kit - 91109

    $15.77
    1
  28. FLIR AX8/Dragonfly Free Standing Mount - R70375

    $44.99
    0
  29. 69% off

    Raymarine Thru-Hull Retractable Transducer - T912

    $168.99
    $50.70
    0
  30. Faria Dress White Depth Sounder

    $240.99 - $309.99
    0
  31. Airmar Snap-In Smart Sensor Cap - 20-386-03

    $9.75
  32. Airmar DT800 Bronze Installation Kit - 20-398-02

    $166.66
  33. Airmar P39 Transom Wheel Assembly - 33-473-01

    $23.00
    1
  34. Airmar P32 Spare Wheel Kit

    $19.50
  35. Airmar P8 Retractable Shorty Series Depth Sensor - P8-200-0

    $169.00
  36. Raymarine RSW Wired Replacement Wind Transducer Mounting Plate - R70950

    $27.99
  37. Davis Instruments Weather Station Mounting Pole Kit - 7717

    $103.99
  38. Airmar UDST800 Thru-Hull Ultrasonic Smart Multisensor

    $1,500.00 - $1,725.00
    5
  39. Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

    $1,457.00 - $1,660.00
    0
  40. Veratron LinkUp Intelligent Battery Sensor - B00043901

    $149.31
    0
  41. Veratron LinkUp Intelligent Temperature & Pressure Sensor - B00070501

    $239.58
    0
  42. Faria Transom Mount Depth Transducer - SN2011

    $144.99
  43. Faria Thru-Hull Depth Transducer - SN2060A

    $138.99
  44. Maretron Ultrasonic Wind and Weather Station - WSO200

    $540.99
    0
  45. Maretron High-Resolution Color Display - 5.7" - DSM570-01

    $961.99
    0
  46. Raymarine ST300/P371 Thru-Hull Low-Profile Shorty Transducer - E26008

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

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

    $99.99
    1

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!