Proudly Canadian
Free Shipping on orders over $99*

Vessel Monitoring

68 Listed

  1. Actisense NMEA 2000 Engine Monitoring Unit - EMU-1

    $561.99
    0

  2. Maretron NMEA 2000 Tank Level Monitor - TLM100-01

    $215.99
    0

  3. Maretron Submersible Pressure Transducer - PTS-0-1.5PSI-01

    $283.99
    0

  4. Maretron Fluid Pressure Monitor - FPM100-01

    $397.99
    0

  5. Maretron Vessel Data Recorder - VDR100-01

    $729.99
    0

  6. Blue Sea Systems Mini OLED Digital Temperature Monitor - 1741

    $58.99
    0

  7. Maretron Temperature Module - TMP100-01

    $291.99
    5

  8. Maretron Fuel Flow Monitor - FFM100-01

    $374.99
    0

  9. Maretron Direct Current Relay Module - DCR100-01

    $338.99
    0

  10. Maretron Exhaust Gas Temperature (EGT) Probe Sensor - TP-EGT-1

    $149.99
    0

  11. Maretron NMEA 2000 AC Monitor - ACM100-01

    $404.99
    0

  12. Maretron J1939 to NMEA 2000 Gateway - J2K100-01

    $349.99
    0

  13. Maretron TFT-5H-Focus Tube Kit - TFT-5H

    $50.99
    0
  14. 25% off

    Maretron Pressure Transducer

    $141.99 - $191.99
    $106.49 - $191.99
    0

  15. Maretron Tank Level Sender - TLM150-01

    $247.99
    1

  16. Maretron Bilge High Water Detector - BHW100

    $60.99
    1

  17. Temo 450 Anti-Theft Handcuff Lock Device - T450 ANTI THEFT

    $108.99
    0
  18. 10% off

    Maretron High Temperature Smoke/Heat Detector Kit - SH-003

    $242.99
    $218.69
    0

  19. Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H

    $75.99
    0

  20. Maretron Switch Indicator Module - SIM100-01

    $344.99
    0
  21. 10% off

    Maretron Submersible Pressure Transducer - PTS-0-5PSI-01

    $421.99
    $379.79
    0

  22. Maretron Ambient Air Temperature Module Sensor - TP-AAP-1

    $23.99
    0

  23. Sea-Dog Digital LED Temperature Meter - 421618-1

    $15.75
    0

  24. Maretron DC Electrical Current Transducer with Cable - LEMHTA200-S

    $99.99
    0

  25. Maretron Tank Level NMEA 2000 Adapter - TLA100-01

    $262.99
    0

  26. Maretron AC Electrical Current Transducer with Cable - M000630

    $69.99
    0

  27. Maretron Current Loop Monitor - CLM100-01

    $397.99
    0
  28. 15% off

    Oceanic Systems Deck-Mounted Fuel Gauge - 5250-F

    $249.99
    $211.88
    0

  29. Maretron Pressure Transducer - PT-V-0-1BAR-01

    $202.99
    0

  30. Maretron Ring/Under Bolt Temperature Probe Sensor - TR3K

    $30.99
    0
  31. 10% off

    Maretron Run Indicator Module - RIM100-01

    $287.99
    $259.19
    0
  32. 15% off

    Oceanic Systems 4-20mA Tank Level Adaptor - 4291

    $269.99
    $228.88
    0
  33. 15% off

    Oceanic Systems Panel-Mounted Fuel Gauge - 3350-F

    $229.99
    $194.88
    0
  34. 10% off

    Maretron Gas Fume Detector - CO-CO1224T

    $186.99
    $168.29
    0

  35. Maretron NMEA 2000 DC Monitor - DCM100-01

    $494.99
    0
  36. 25% off

    Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1

    $82.99
    $62.24
    0

  37. Maretron Vacuum Switch - VS-07.0HG

    $35.99
    0

  38. Blue Sea Systems High Temperature Sensor - 1821

    $11.91
    1
  39. 24% off

    Blue Sea Systems Short Stop Circuit Breaker Boot - 7160

    $1.42
    $1.07
    0
  40. 15% off

    Oceanic Systems NMEA2000 Volumetric Water Tank Volume/Level Sender

    $229.99 - $239.99
    $203.88 - $229.99
    0
  41.  
     

    Fireboy CMD6 Marine Carbon Monoxide Alarm with Internal Battery/Relay & Interconnect

    $148.99
    0

  42. Victron Energy GX Tank 140 System Monitoring - BPP920140100

    $111.99
    0

  43. Maretron Indoor Relative Humidity and Temperature Sensor - IRHT-01

    $281.99
    0

  44. Maretron Pressure Snubber - PT-SNUB-01

    $66.99
    0
  45. 25% off

    Maretron Pressure Transducer - PT-0-5000PSI-01

    $141.99
    $106.49
    0
  46. 10% off

    Maretron Battery Voltage Sense/Power Cable - FC01

    $37.99
    $34.19
    0

  47. Blue Sea Systems M2 OLED Digital Temperature Monitor - 1841

    $314.99
    0
  48. 15% off

    Oceanic Systems 3412 DC Current Transformer 0-200A

    $64.99
    $54.88
    0
 
1 / 2Next

0Filters

Manufacturer
Price
1.07
1446
More Ways To Shop
Availability
Fulfillment

Explore

Guides
Brands

Helpful Information

Track My Order
Shipping Policy
Return Policy
Outlet Store
Defender 1st

Get In Touch

Customer Service
1-800-628-8225
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use
Accessibility Statement

Stay Connected

Members receive special perks, including offers and new releases, by subscribing to our monthly newsletter.

    • Ensuring that the email is valid...
    • This might take a few seconds.
    • Are you sure the email is typed correctly?
      Twitter
      Facebook
      Instagram
      YouTube
      Toggle desktop/mobile version
      2023 © Defender. All Rights Reserved.