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Instruments

Depth Instruments Instrument Transducers & Sensors Instrument Display Mounts & Accessories Multifunction Instruments Weather Stations Speed Instruments Wind Instruments

291 Listed

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

    $46.61

  2. Airmar NMEA 0183 Plastic Tilted Element Smart Sensor - 235 kHz

    $1,234.37

  3. Airmar P79 In-Hull Transducer - 235 kHz

    $205.05 - $605.51

  4. Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

    $317.86

  5. Maretron GPS Antenna/Receiver - GPS200-01

    $489.85
    0

  6. Standard Horizon GPS Smart Antenna - SCU-31

    $148.63
    1

  7. Digital Yacht DST810 NMEA2000 Triducer with BT Interface - ZDIGDST810

    $629.44

  8. Digital Yacht iSeaSense Wireless Speed/Depth/Temperature Instrument Pack - ZDIGISSPK1

    $1,018.63

  9. Airmar ST800 Installation Kit - 20-410-01

    $78.70

  10. Airmar P317 Plastic Taper-Flush Housing - 33-092-01

    $32.32

  11. Airmar P39 Replacement Bracket Kit - 33-477-01

    $32.32
    1

  12. Airmar ST-650 Speed/Temperature Replacement Insert

    $199.01 - $212.10

  13. Airmar D800 Plastic Retractable Thru-Hull Transducer - 170kHz - D800P-170-BG

    $328.44

  14. Lowrance Temperature Sensor - 000-11520-001

    $154.27
    0

  15. Furuno DT-800 Bronze Depth/Temperature Thru-Hull Smart Sensor - DT-800MSF

    $546.29
    0

  16. Digital Yacht GPS Sensor/Antenna - ZDIGGPS160

    $240.28
    1

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

    $162.73
    0

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

    $6.73
    5

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

    $27.39

  20. Airmar Raymarine ST600 Spare Wheel Kit - 33-250

    $38.67
    1

  21. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $40.08

  22. Airmar P8 Retractable Shorty Series Depth Sensor - P8-200-0

    $238.89

  23. Furuno Remote Display - RD33

    $980.57
    0

  24. Faria Transom Mount Depth Transducer - SN2011

    $227.59

  25. Airmar 33-108 Spares Kit O-Ring - 09-146

    $7.04

  26. Airmar DX900 Installation Kit and Housing - 20-1256-01

    $106.35

  27. Airmar 33-108 Wheel Kit Replacement Paddlewheel - 20-301-01

    $25.98

  28. Airmar DT800 Bronze Installation Kit - 20-398-02

    $235.60

  29. Airmar ST-550/100 Spare Wheel Kit - 33-108

    $29.15

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

    $33.03

  31. Airmar P217 Plastic Flush Mount Housing - 33-217

    $32.32

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

    $33.03
    1

  33. Airmar S63 Transom Mount Speed Sensor - S63-0

    $58.41

  34. Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

    $425.52

  35. Airmar B122 B&G Replacement Plastic Insert - B122-170-INS-BG

    $474.97

  36. Faria Dress White Depth Sounder

    $337.57 - $416.53
    0

  37. Davis Instruments Weather Station Mounting Pole Kit - 7717

    $147.24

  38. Scout GPS/GLONASS Antenna - 3" (7 cm) - NAV-6

    $147.22
    1

  39. Airmar UST850 Thru-Hull Ultrasonic Smart Multisensor

    $2,055.00 - $2,341.23
    0
  40. 14% off

    Veratron GO Receiver

    $193.87 - $433.83
    $164.88 - $433.83
    0

  41. B&G 20/20HV 3-Way Mast Bracket - BGH220013

    $365.81
    0

  42. Digital Yacht WND100 Wind Transducer - ZDIGWND100

    $590.01

  43. Veratron LinkUp Intelligent Battery Sensor - B00043901

    $211.13
    0

  44. Faria Universal Pitot Kit - 91109

    $22.31
    1

  45. Faria Thru-Hull Depth/Temp Transducer - SN0036A

    $189.52

  46. Airmar P79 Replacement Screw Pack - P79-SCREWPACK

    $6.42

  47. Airmar 33-114 Spares Kit O-Ring - 09-145

    $6.84

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

    $5.89
    1
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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!

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