Instruments

  1. Airmar Bronze Thru-Hull High Precision Temperature Sensor - T42-A

    $279.00
  2. Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

    $41.00
  3. Garmin Airmar T80 External Mount Water Temp Probe - 010-10717-20

    $149.99
  4. Garmin GNX Wind Instrument - 010-01142-30

    $393.99
    0
  5. Airmar 110WX WeatherStation Instrument - WS-110WX

    $1,234.76
    0
  6. Digital Yacht GPS Sensor/Antenna - ZDIGGPS160

    $183.99
    1
  7. B&G Sail Performance Sensor Pack - 000-15974-001

    $1,679.00
    1
  8. Furuno GNSS GPS Receiver - GP340

    $319.99
  9. Airmar S300/ST300 Spare Paddlewheel Kit - 33-350-01

    $18.00
    2
  10. Raymarine ST69 Transom-Mount Transducer - E26005

    $121.99
    0
  11. Raymarine RSW Wired Replacement Wind Gateway - R70946

    $144.99
  12. Davis Instruments Vantage Pro and EnviroMonitor Anemometer - 6410

    $287.99
  13. Davis Instruments Vantage Pro2 Wireless Weather Station with Standard Radiation Shield and WeatherLink Console - 6252

    $1,046.99
    1
  14. Davis Instruments Vantage Vue Wireless Weather Station with WeatherLink Console - 6242

    $735.99
  15. Digital Yacht EnvironLink NMEA 2000 Barometer & Marine Weather Station - ZDIGENVLINK

    $249.99
  16. Garmin GST 43 Thru-Hull Speed/Temperature Transducer

    $151.99 - $196.99
    2
  17. Airmar B120 Bronze Low-Profile Housing - 33-340-01

    $145.00
  18. Airmar P65/ST69 Transducer Paddlewheel Kit - 33-398-01

    $19.50
  19. SI-TEX Seawater Temperature Indicator - SST-110TS

    $499.99
    0
  20. Airmar Replacement Blanking Plug Assembly without Valve - 33-486-01

    $22.50
    1
  21. Furuno GPS Navigator

    $2,695.00 - $3,195.00
  22. Garmin GDT 43 NMEA 2000 Depth & Temperature Transducer - 010-01749-10

    $249.99
    0
  23. Garmin GA 38 Cortex V1 & M1 GPS/GLONASS Antenna

    $129.99 - $147.99
  24. Airmar P17 Plastic Low-Profile Housing - 33-417

    $22.50
  25. Airmar 150WXS NMEA 0183/AG WeatherStation - WS-150WXS-RS232

    $2,040.19
  26. Airmar B122 Bronze Long Stem Retractable Housing - B122-HSG

    $167.85
  27. Raymarine Anemometer Replacement Wind Cup Set - TA101

    $33.99
  28. 14% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Veratron GO Receiver

    MSRP: $137.07 - $307.26
    $116.51 - $307.26
    0
  29. Furuno GPS Antenna - GPAC01

    $129.99
  30. Davis Instruments Vantage Pro2 Plus Weather Station with Fan Aspirated Radiation Shield and WeatherLink Console - 6263

    $2,030.00
  31. Humminbird HDR 650 In Dash Digital Depth Sounder - 407860-1

    $161.99
  32. Airmar ST800 Installation Kit - 20-410-01

    $55.39
  33. Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

    $301.35
  34. Digital Yacht DST810 NMEA2000 Triducer with BT Interface - ZDIGDST810

    $445.99
  35. Raymarine RS150 GPS Antenna Pole Mount - A80370

    $47.99
  36. Garmin GMI Wired Start Pack 52 - 010-01248-80

    $999.99
    0
  37. Raymarine P79S In-Hull Smart Transducer

    $429.00 - $489.99
    0
  38. Lowrance Point-1 External GPS Antenna with Heading Sensor - 000-11047-002

    $321.00
    1
  39. Raymarine Instrument Display Bezel - R22168

    $26.99
    0
  40. Em-Trak GPS Antenna - 304-0055

    $100.80
  41. Airmar ST600 Blanking Plug Assembly - 20-600

    $27.25
  42. Airmar P317 Plastic Taper-Flush Housing - 33-092-01

    $22.50
  43. Airmar B17 Bronze Housing - 33-100

    $120.00
  44. Airmar S63/P37/P52 Spare Wheel Kit - 33-110

    $23.00
  45. Airmar ST300 Shorty Blanking Plug Assembly - 33-386-01

    $28.00
  46. Airmar ST850 Blanking Plug Assembly - 33-522-01

    $32.63
  47. Airmar 110WX NMEA 0183/2000 WeatherStation - WS-110WX-RH

    $1,299.38
  48. Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

    $225.00

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!