Instruments

  1. Raymarine Wind Transmitter Bearing Service Kit - TA122

    $99.99
    1
  2. Raymarine RSW Wired Replacement Cups & Bearings - R70949

    $99.99
  3. Maptech Navigation USB GPS Receiver - MTUSBGPS

    $94.99
    0
  4. Airmar ST300 Replacement Insert - ST300-INS-0

    $92.50
    1
  5. HawkEye DepthTrax 2B Depth Finder - DT2B-TM

    $90.99
    7
  6. Raymarine Tacktick Wind Vane Replacement Kit - TA100

    $86.99
  7. Raymarine Wind Transmitter Battery Pack & Seal Kit - TA125

    $85.99
  8. Davis Instruments Sensor Mounting Shelf - 6673

    $77.99
  9. Airmar DX900 Installation Kit and Housing - 20-1256-01

    $75.00
  10. FLIR AX8 Ball & Socket Mount - 261-2319-00

    $73.99
    0
  11. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Raymarine ST900 Paddle Wheel Replacement Kit - R70961

    MSRP: $84.99
    $72.24
  12. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Raymarine ST950 Paddle Wheel Replacement Kit - R70972

    MSRP: $84.99
    $72.24
  13. Raymarine ST60 Wind Transducer Service Kit - A28167

    $69.99
    1
  14. Lowrance PDRT-WSU Pod Transducer with Remote Temperature Sensor - 000-0106-69

    $67.99
  15. Davis Instruments RJ Connector Temperature Probe

    $66.99 - $132.99
  16. Airmar Wiring Box with Screw Terminals - 33-035-BOX

    $65.05
    1
  17. Raymarine Alpha Performance Display Power Cable

    $64.99 - $162.99
    0
  18. Airmar P617V Plastic Low-Profile Housing with Valve - 33-510-01

    $56.43
    2
  19. Airmar ST800 Installation Kit - 20-410-01

    $55.39
  20. Airmar P398 Shorty Sensor Speed/Temperature Taper-Flush Housing - 33-444-02

    $55.00
  21. B&G WS300/700 Series Wind Vane Assembly - 000-15144-001

    $53.99
  22. 69% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Raymarine Thru-Hull Retractable Transducer - T912

    MSRP: $168.99
    $50.70
    0
  23. Lowrance HOOK2 4x Inline Temperature Sensor - 000-14410-001

    $49.99
  24. B&G 213 Wind Vane - 213-10-056

    $49.99
  25. Raymarine RS150 GPS Antenna Pole Mount - A80370

    $47.99
  26. FLIR AX8/Dragonfly Free Standing Mount - R70375

    $44.99
    0
  27. Airmar S63 Transom Mount Speed Sensor - S63-0

    $41.00
  28. Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

    $41.00
  29. Raymarine ST50 Masthead Wind Transducer Service Kit - E28081

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

    $37.99
    0
  31. Veratron OceanLink TFT Display Bezel - 7" - A2C1697540001

    $35.19
    0
  32. Garmin GST 43 Replacement Paddle Wheel - 010-12344-00

    $34.99
  33. Furuno Thermal Recording Paper - AYTP0820B

    $34.99
  34. B&G Wind Sensor Wind Speed Cups - 000-15140-001

    $34.99
  35. Raymarine Anemometer Replacement Wind Cup Set - TA101

    $33.99
  36. 9% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Veratron AcquaLink TFT Display Bezel - 7" - A2C3995200001

    MSRP: $37.62
    $33.86
    0
  37. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $32.63
  38. Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

    $30.42
    1
  39. Airmar Stuffing Tube Bushings - 20-488-01

    $30.08
  40. Airmar Shorty Sensor Speed/Temperature Low-Profile Housing - 33-361-01

    $30.00
  41. Raymarine ST Paddle Wheel Kit - R69015

    $28.99
    2
  42. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $28.00
  43. Airmar ST-800 Paddlewheel Kit - 33-493-01

    $28.00
    4
  44. Garmin gWind & GND 10 Replacement Propeller - 010-12117-08

    $27.99
    1
  45. Raymarine RSW Wired Replacement Wind Transducer Mounting Plate - R70950

    $27.99
  46. Airmar ST600 Blanking Plug Assembly - 20-600

    $27.25
  47. Airmar Raymarine ST600 Spare Wheel Kit - 33-250

    $27.00
    1
  48. Raymarine Instrument Display Bezel - R22168

    $26.99
    0

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!