Instruments

  1. 64% off

    Raymarine T911 Paddle Wheel Replacement Kit - TA900

    $39.99
    $14.00
  2. Airmar P32 Transom Mount DST Triducer - P32-200-VDO

    $20.25
  3. Raymarine Spade Connectors - Q085

    $20.99
    1
  4. Garmin gWind Mast Bracket - 010-12117-06

    $23.99
  5. Raymarine ST Paddle Wheel Kit - R69015

    $28.99
    2
  6. Raymarine Anemometer Replacement Wind Cup Set - TA101

    $33.99
  7. B&G Wind Sensor Wind Speed Cups - 000-15140-001

    $34.99
  8. Raymarine ST50 Masthead Wind Transducer Service Kit - E28081

    $37.99
    10
  9. Standard Horizon External GPS Antenna - SCU-38

    $37.99
    0
  10. Airmar S63 Transom Mount Speed Sensor - S63-0

    $41.00
  11. Lowrance HOOK2 4x Inline Temperature Sensor - 000-14410-001

    $49.99
  12. 69% off

    Raymarine Thru-Hull Retractable Transducer - T912

    $168.99
    $50.70
    0
  13. B&G WS300/700 Series Wind Vane Assembly - 000-15144-001

    $53.99
  14. Davis Instruments RJ Connector Temperature Probe

    $66.99 - $132.99
  15. Lowrance PDRT-WSU Pod Transducer with Remote Temperature Sensor - 000-0106-69

    $67.99
  16. Raymarine ST60 Wind Transducer Service Kit - A28167

    $69.99
    1
  17. 15% off

    Raymarine ST900 Paddle Wheel Replacement Kit - R70961

    $84.99
    $72.24
  18. 15% off

    Raymarine ST950 Paddle Wheel Replacement Kit - R70972

    $84.99
    $72.24
  19. Raymarine Wind Transmitter Battery Pack & Seal Kit - TA125

    $85.99
  20. Raymarine Tacktick Wind Vane Replacement Kit - TA100

    $86.99
  21. Airmar ST300 Replacement Insert - ST300-INS-0

    $92.50
    1
  22. Maptech Navigation USB GPS Receiver - MTUSBGPS

    $94.99
    0
  23. Raymarine Wind Transmitter Bearing Service Kit - TA122

    $99.99
    1
  24. Lowrance Fluid Level Sensor - 000-11518-001

    $107.99
    0
  25. Airmar ST300 Thru-Hull Shorty Speed/Temperature Sensor - ST300-FISO

    $108.60
  26. Raymarine P7 Thru-Hull Low Profile Shorty Transducer - E26009

    $108.99
    1
  27. Lowrance Speed Sensor Pack - 000-11519-001

    $108.99
    0
  28. Lowrance Temperature Sensor - 000-11520-001

    $108.99
    0
  29. Lowrance Fuel Data Manager - 000-11522-001

    $108.99
    0
  30. Furuno Transom Speed/Temperature Sensor - 6-Pin - ST-01PTB

    $113.72
  31. Veratron Rudder Angle Sensor

    $114.12 - $154.26
    1
  32. 14% off

    Veratron GO Receiver

    $137.07 - $307.26
    $116.51 - $307.26
    0
  33. Raymarine D800/P17 Thru-Hull Retractable Transducer - E26030

    $117.99
    1
  34. Airmar ST850 Thru-Hull Speed & Temperature Sensor

    $119.00 - $329.00
    2
  35. Simrad ST850 Speed/Temperature Sensor - 22098586

    $119.99
  36. Standard Horizon GPS Smart Antenna - SCU-31

    $120.99
    1
  37. Raymarine ST300/P371 Thru-Hull Low-Profile Shorty Transducer - E26008

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

    $121.99
    0
  39. Sierra GPS Receiver - 68982P

    $123.99
  40. Garmin GDT 43 Depth & Temperature Transducer - 010-01749-00

    $129.99
    0
  41. Faria Thru-Hull Depth/Temp Transducer - SN0036A

    $133.99
  42. Faria Thru-Hull Depth Transducer - SN2060A

    $138.99
  43. Airmar ST-650 Speed/Temperature Replacement Insert

    $140.72 - $150.00
  44. Raymarine Masthead Cable and Base - A28162

    $144.99
    1
  45. Faria Transom Mount Depth Transducer - SN2011

    $144.99
  46. Airmar P79 In-Hull Transducer - 235 kHz

    $145.00 - $429.00
  47. Airmar ST800 Thru-Hull Speed & Temperature Sensor

    $149.00 - $399.00
  48. Airmar P52 Transom Mount DST Triducer - P52-200-6G

    $159.00
 
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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!