Instruments

  1. Furuno GPS Antenna without Cable - GPA017S/S

    $153.90
  2. Furuno Bronze Long Stem Thru-Hull Depth/Temp NMEA 2000 Smart Sensor - 235-MSLF

    $920.43
  3. Furuno NMEA 2000 Plastic Transom Mount Depth/Speed/Temp Sensor - DST-800PWF

    $501.36
  4. Furuno NMEA 2000 Plastic Thru-Hull Digital Depth and Temp Sensor - DT-800PSF

    $466.34
  5. Furuno NMEA 2000 Plastic Thru-Hull Smart Digital Depth and Temp Sensor - DST-810PSF

    $501.38
  6. Furuno Bronze Thru-Hull Digital Depth & High-Precision Temp Sensor with 7" Stem & High Speed Block - 235DHT-LMSE

    $1,140.89
  7. Furuno Bronze Thru-Hull Digital Depth & High-Precision Temp Sensor - 235DHT-MSE

    $972.98
  8. Furuno Bronze Thru-Hull Speed and Temperature Sensor - ST-02MSB

    $308.67
  9. Furuno Antenna Cable for SC120/SC60 - 001-248-170-00

    $587.56
  10. Furuno Stainless Steel Thru-Hull Transducer with Motion Sensor for DFF3D - 165T-SS54

    $2,580.46
  11. Furuno Bronze Thru-Hull Multisensor with 7" Stem - 525STID-MSD7

    $781.73
  12. Furuno Wind Transducer with Cable - 30 m (98 5/8') - FI5001/30M

    $910.20
  13. Furuno Pocket or Keel Mount Transducer with Motion Sensor for DFF3D - 165T-CM54

    $2,713.32
  14. Furuno 6-Pin Bronze Thru-Hull Temperature Sensor - T-04MSB

    $571.46
  15. Furuno Pipe Mount Kit for GP330B - 001-041-560

    $91.10
  16. Furuno GPS/WASS Sensor with NMEA0183 Cable - GP330B/0183

    $621.10
  17. Furuno GPS Antenna - GPAC01

    $175.80
  18. Furuno Plastic Transom Mount Multisensor - 525ST-PWC

    $288.22
  19. Furuno Plastic Thru-Hull Speed and Temperature Insert - ST-02PSB

    $197.70
  20. Digital Yacht WND100 Wind Transducer - ZDIGWND100

    $553.97
  21. Digital Yacht iSeaSense Wireless Speed/Depth/Temperature Instrument Pack - ZDIGISSPK1

    $952.53
  22. Digital Yacht iSeaSense Wireless Speed/Depth/Temperature/Wind Instrument Pack - ZDIGISSPK2

    $1,695.69
  23. Digital Yacht GPS160 Wireless Trinav GPS with WLN10 NMEA to WiFi Gateway - ZDIGGPS160WL

    $296.96
  24. Digital Yacht GPS160 Trinav GPS with Furuno Output - ZDIGGPS160F

    $394.78
  25. Digital Yacht GPS160 Trinav GPS with iKonvert NMEA2000 Interface Bundle - ZDIGGPS160N2K

    $457.56
  26. Digital Yacht GPS160 Trinav GPS with SeaTalk1 to NMEA0183 Converter - ZDIGGPS160ST

    $457.56
  27. Digital Yacht DST810 NMEA2000 Triducer with BT Interface - ZDIGDST810

    $594.80
  28. Airmar B619 Garmin Thru-Hull Transducer - 77/200kHz

    $361.97
  29. Airmar CS4500 Ultrasonic Speed & Temperature Sensor

    $1,387.63 - $1,562.84
  30. Airmar ST800 Thru-Hull Speed & Temperature Sensor

    $218.15 - $583.16
  31. Airmar ST800 NMEA 2000 Smart Speed & Temperature Sensor

    $504.31 - $716.02
  32. Airmar ST850 Thru-Hull Speed & Temperature Sensor

    $174.35 - $480.96
    1
  33. Airmar ST850 NMEA 2000 Smart Speed & Temperature Sensor

    $504.32 - $832.82
    1
  34. Airmar B122 Long Stem Thru-Hull Smart Multisensor - 235 kHz

    $1,088.34 - $1,751.18
  35. Airmar 150WX NMEA 0183/2000 WeatherStation

    $1,897.14
  36. Airmar 200WX NMEA 0183/2000 RS232 WeatherStation

    $2,622.04 - $2,880.74
  37. Airmar D800 Plastic Retractable Thru-Hull Transducer - 170kHz - D800P-170-BG

    $340.07
  38. Airmar B122 Bronze Long Stem Retractable Housing - B122-HSG

    $245.68
  39. Airmar B122 B&G Replacement Plastic Insert - B122-170-INS-BG

    $491.79
  40. Airmar ST850 B&G Replacement Insert with Valve - ST850-INS-BG

    $218.16
    1
  41. Airmar UST850 Ultrasonic Smart Sensor Insert - UST850-INS

    $854.72
  42. Airmar ST800 FISO 5-Pin Replacement Insert - ST800-INS

    $203.54
    2
  43. Airmar ST850 Paddlewheel & Valve Kit - 33-536-01

    $60.46
  44. Airmar SS617V Stainless Low-Profile Housing with Integrated Valve - 33-617-01

    $329.11
  45. Airmar B122 Low-Profile Flange Adapter Ring - 33-634-02

    $33.45
  46. Airmar Gen2 DST810/ST900/ST950 Replacement Paddlewheel - 33-HP-PADDLEWHEEL

    $45.01
  47. Airmar SS571 Stainless Steel Replacement Stuffing Tube - 33-541-01

    $440.59
  48. Airmar CS4500 Ultrasonic ST850 Style Insert - CS4500-850

    $1,387.62

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!