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Instruments

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

131 Listed

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

    $952.53

  2. Airmar ST800 Thru-Hull Speed & Temperature Sensor

    $218.15 - $583.16

  3. Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

    $504.31 - $716.02

  4. Airmar ST850 Thru-Hull Speed & Temperature Sensor

    $174.35 - $480.96
    1

  5. Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

    $504.32 - $832.82
    1

  6. Airmar B122 Long Stem Thru-Hull Smart Multisensor - 235 kHz

    $1,088.34 - $1,751.18

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

    $340.07

  8. Airmar ST850 B&G Replacement Insert with Valve - ST850-INS-BG

    $218.16
    1

  9. Airmar ST800 FISO 5-Pin Replacement Insert - ST800-INS

    $203.54
    2

  10. Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

    $60.46

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

    $329.11

  12. Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

    $45.01

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

    $60.46

  14. Airmar ST300 Thru-Hull Shorty Speed/Temperature Sensor - ST300-FISO

    $159.15

  15. Airmar ST300 Replacement Insert - ST300-INS-0

    $135.65

  16. Airmar 200WX NMEA 0183/2000 IPX7 WeatherStation - WS-200WX-RS422

    $2,880.73

  17. Airmar WeatherStation Humidity Sensor - WS-HUMIDITY

    $243.69

  18. Airmar P39 Transom Mount Smart Triducer Multisensor - P39-235-N2

    $582.31

  19. Airmar 150WX NMEA 0183/2000 WeatherStation - WS-150WX-RS232

    $1,897.14

  20. Airmar P79 In-Hull Transducer - 235 kHz

    $212.30 - $626.96

  21. Airmar NMEA 2000 Bronze Tilted Element Smart Sensor - 235 kHz

    $780.26

  22. Airmar P32 Spare Wheel Kit

    $29.07

  23. Airmar ST-650 Speed/Temperature Replacement Insert

    $206.05 - $219.60

  24. Airmar ST-800 Paddlewheel Kit - 33-493-01

    $41.48
    1

  25. Airmar P617V Plastic Low-Profile Housing with Valve - 33-510-01

    $82.99
    2

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

    $48.24

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

    $34.18

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

    $33.45
    1

  29. Airmar ST800 Blanking Plug Assembly - 33-481-01

    $34.92

  30. Airmar Replacement Blanking Plug Assembly with Valve - 33-482-01

    $36.89
    1

  31. Airmar P17 Plastic Low-Profile Housing - 33-417

    $33.45

  32. Airmar P398 Shorty Sensor Speed/Temperature Taper-Flush Housing - 33-444-02

    $80.90

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

    $41.48

  34. Airmar P65/ST69 Transducer Paddlewheel Kit - 33-398-01

    $29.07

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

    $40.02

  36. Airmar S300/ST300 Spare Paddlewheel Kit - 33-350-01

    $26.88
    1

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

    $33.45

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

    $33.45

  39. Airmar B17 Bronze Housing - 33-100

    $175.80

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

    $30.16

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

    $34.18

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

    $28.34

  43. Airmar Replacement Blanking Plug Assembly without Valve - 33-486-01

    $33.45
    1

  44. Airmar Wiring Box with Screw Terminals - 33-035-BOX

    $95.57
    1

  45. Airmar ST600 Blanking Plug Assembly - 20-600

    $40.38

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

    $81.47

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

    $26.88

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

    $7.27
 
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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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