Instruments

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

    $232.50
  2. Digital Yacht WND100 Wind Transducer - ZDIGWND100

    $417.99
  3. Furuno Remote Display - RD33

    $695.00
    0
  4. Airmar ST800 Blanking Plug Assembly - 33-481-01

    $23.51
    2
  5. Airmar Replacement Blanking Plug Assembly without Valve - 33-486-01

    $22.50
    1
  6. Airmar Replacement Blanking Plug Assembly with Valve - 33-482-01

    $24.86
    1
  7. B&G Sail Performance Sensor Pack - 000-15974-001

    $1,679.00
    1
  8. Garmin Airmar DT800 Depth/Temperature Smart Sensor - 010-11105-00

    $406.99
  9. Furuno Instrument/Data Organizer - FI70

    $545.00
    1
  10. Airmar NMEA 2000 Stainless Tilted Element Smart Sensor - 235 kHz

    $624.00
  11. Davis Instruments Vantage Pro and EnviroMonitor Anemometer - 6410

    $287.99
  12. Davis Instruments Vantage Vue Wireless Weather Station with WeatherLink Console - 6242

    $735.99
  13. SI-TEX Seawater Temperature Indicator - SST-110TS

    $499.99
    0
  14. Up to 5% off

    Garmin Intelliducer NMEA 2000 Thru-Hull Transducer

    $187.14 - $196.99
    0
  15. Raymarine RS150 GPS Antenna Pole Mount - A80370

    $47.99
  16. Airmar P65/ST69 Transducer Paddlewheel Kit - 33-398-01

    $19.50
  17. Davis Instruments Vantage Pro2 Wireless Weather Station with Standard Radiation Shield and WeatherLink Console - 6252

    $1,046.99
    1
  18. Garmin Airmar T80 External Mount Water Temp Probe - 010-10717-20

    $149.99
  19. Furuno GPS Antenna - GPA017

    $138.99
    0
  20. Airmar P79 In-Hull Transducer - 200 kHz

    $199.00 - $296.50
  21. Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

    $41.00
  22. Furuno GPS Antenna without Cable - GPA017S/S

    $118.99
  23. Furuno GPS Navigator

    $2,695.00 - $3,195.00
  24. Raymarine RSW Wired Replacement Wind Gateway - R70946

    $144.99
  25. B&G WS300/700 Series Wind Vane Assembly - 000-15144-001

    $53.99
  26. SI-TEX External GPS Antenna - MDA-1-ANT

    $114.99
    0
  27. Garmin gWind & GND 10 Replacement Propeller - 010-12117-08

    $27.99
    1
  28. Digital Yacht GPS Sensor/Antenna - ZDIGGPS160

    $183.99
    1
  29. Davis Instruments Vantage Pro2 Plus Weather Station with Fan Aspirated Radiation Shield and WeatherLink Console - 6263

    $2,030.00
  30. Airmar 110WX WeatherStation Instrument - WS-110WX

    $1,234.76
    0
  31. Garmin GDT 43 NMEA 2000 Depth & Temperature Transducer - 010-01749-10

    $249.99
    0
  32. Raymarine P79S In-Hull Smart Transducer

    $429.00 - $489.99
    0
  33. Raymarine Anemometer Replacement Wind Cup Set - TA101

    $33.99
  34. Garmin gWind Mast Bracket - 010-12117-06

    $23.99
  35. Raymarine ST69 Transom-Mount Transducer - E26005

    $121.99
    0
  36. Airmar P17 Plastic Low-Profile Housing - 33-417

    $22.50
  37. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $32.63
  38. Airmar ST-650 Speed/Temperature Replacement Insert

    $140.72 - $150.00
  39. Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

    $301.35
  40. Humminbird HDR 650 In Dash Digital Depth Sounder - 407860-1

    $161.99
  41. Raymarine P66 Transom-Mount Transducer - E26027-PZ

    $199.00
    0
  42. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $28.00
  43. Airmar 110WX NMEA 0183/2000 WeatherStation - WS-110WX-RH

    $1,299.38
  44. Airmar Bronze Thru-Hull High Precision Temperature Sensor - T42-A

    $279.00
  45. Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

    $225.00
  46. Airmar B122 B&G Replacement Plastic Insert - B122-170-INS-BG

    $336.42
  47. Up to 14% off

    Veratron GO Receiver

    $116.51 - $307.26
    0
  48. SeaStar Teleflex/Sierra In-Dash Digital Depth Finder with Transducer - 2" - 26000P

    See price in cart
    2

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!