Defender Canada
Free Shipping on orders over $99*

Bilge Monitors & Float Switches

44 Listed

  1. Blue Sea Systems M2 OLED Digital Bilge Meter - 1842

    $426.43
    0
  2. 9% off

    Maretron Switch Indicator Module - SIM100-01

    $468.70
    $421.89
    0

  3. MTI Industries Gas Fume/Fire/Bilge Water Alarm - MGD-10XL

    $353.08

  4. Siren Marine Wireless Bilge Pump Sensor for Siren 3 - SM-WLS3-BILG-917

    $196.72

  5. Siren Marine Wireless High-Water Sensor for Siren 3 - SM-WLS3-HIWS-917

    $196.72

  6. Aqualarm Bilge Supervisor - 20074

    $193.75
    0

  7. Groco Bilge Pump Control Kit - AS-100

    $158.50
    0

  8. Rule ECO Switch

    $157.11 - $162.73

  9. Osculati Automatic Bilge Pump Switch - 16.609.00

    $152.86

  10. Johnson Pump Bilge Alert/High Water Level Alarm Panel with Sensor

    $138.76 - $148.63
    1

  11. Water Witch Bilge Pump Cycle Counter - BC100RD

    $137.35
    2

  12. MTI Industries High Bilge Water Alarm - SA-1000XL

    $127.50

  13. Rule High Water Bilge Alarm

    $119.02 - $147.22
    1

  14. Aqualarm Smart Bilge Pump Switch with Alarm - 20038

    $114.79
    1
  15. 20% off

    Maretron Vacuum Switch - VS-07.0HG

    $130.30
    $103.88
    0

  16. Aqualarm High Bilge Water Level Warning System - 20131

    $102.10
    0

  17. Water Witch Audible Bilge Alarm with Mute - BP500RD

    $100.69
    3

  18. Aqualarm Bilge Pump Alarm - 20042

    $99.28
    0

  19. Rule Alarm Gauge for High Water Bilge Alarm - M-1507

    $96.48

  20. Whale Electric Bilge Switch with Time Delay - BE9006

    $95.09
    0

  21. Water Witch Submersible Electronic Bilge Pump Switch

    $93.64 - $103.51
    7

  22. Rule SuperSwitch Bilge Pump Float Switch

    $92.25 - $96.46
    0

  23. Maretron Bilge High Water Detector - BHW100

    $90.82
    1

  24. Water Witch Bilge Pump Switch - 217

    $85.18
    4

  25. Aqualarm Bilge High Water Alarm with Detector - 20240

    $80.95
    0

  26. Rule Rule-A-Matic Plus Float Switch

    $76.72 - $83.79
    2

  27. Aqualarm Bilge Pump Cycle Counter - 20045

    $72.49
    2

  28. Johnson Ultima Switch - 36303

    $68.26
    5

  29. Aqualarm Pump Counter - 20045-SM

    $68.26
    0

  30. Seachoice Automatic Bilge Pump Switch - 36152SC

    $66.85

  31. Water Witch Submersible Electronic Bilge Pump Switch 101

    $65.44 - $73.90
    7

  32. Rule Rule-A-Matic Bilge Pump Float Switch

    $61.23 - $66.87
    4

  33. Whale Electric Bilge Switch - BE9003

    $59.80
    1

  34. Aqualarm Heavy Duty Pump Switch - 20090

    $59.80
    4

  35. SHURflo Bilge Switch - 359-111-40

    $58.39
    0

  36. Attwood S3 Series Automatic Bilge Switch - 4801-7

    $55.60

  37. SHURflo Bilge Switch - 359-111-30

    $48.52
    1

  38. Aqualarm Bilge High Water Level Alarm Detector - 208A - 20120

    $42.88
    2

  39. Attwood Float Switch - 4201-7

    $41.49
    2

  40. Attwood Automatic Float Switch - 4202-7

    $38.67

  41. Seachoice Bilge Pump Control Switch - 19391

    $34.42

  42. Seachoice Automatic Bilge Pump Float Switch - 26014SC

    $33.01

  43. Seachoice Universal Float Switch

    $27.41 - $30.64
    1

  44. Seachoice Universal Series Float Switch - 69792

    $24.70

About Bilge Monitors & Float Switches

Automatic Bilge Pump Float Switches

Bilge pump switches come in a variety of styles to suit any application. From a basic float style switch to field detector cells and air pressure switches, Defender offers just about any switch you may need.

How does a float switch work?

Water finds its way into every boat and the boat owner has to get it out. Bilge pumps take care of that chore but offer challenges of their own. Pumps can burn up when dry and will draw off all of your battery power if given the chance. Enter the automatic bilge pump switch and the bilge pump float switch is the most popular with its simple mechanics. The water gets high, the switch gets high, and signals the bilge pump to switch on. The float switch drops with the water level and cuts the pump off.

Can I DIY my bilge pump switch installation and wiring?

Sure! Defender's line of automatic bilge pump switches is offered complete with a shot of wire and specs to 12, 24, or 32-volt service. Several switches fit detachable mounting plates for easy installation. Other switches can be mounted at an angle. Spec out the location of your automatic bilge pump switch and check out all of the options Defender has to offer before you buy.

And the best automatic bilge pump switch is...

By far the most well know the switch is a marine float switch. Defender offers floats switches, protected float switches, and detachable float switches. Defender also offers switches that are time delayed, air-operated, sensor-operated, and prompted by changes in air pressure. Small spaces, oily bilges, and specialized wiring all play a part in which switch from Defender is the best.

Bilge Monitors & Manual Pump Switches

High water alarms, bilge alarms and gauges, switches, and monitors for control panels are offered to set your mind at ease. Kits from Defender enable boat owners to DIY this special safety feature. A high water alarm is also available that can send cell phone or email notifications.

0Filters

Manufacturer
Price
24.7
427.43
More Ways To Shop
Availability
Voltage (V)
Amperage (A)

Change Locale

Canada - English Shop in currency: CAD
Canada - Français Shop in currency: CAD
United States - English Shop in currency: USD

Helpful Information

Track My Order
Shipping Policy
Return Policy

Get In Touch

Customer Service
1-888-490-6844
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use

Stay Connected

Twitter
Facebook
Instagram
YouTube
Toggle desktop/mobile version
2025 © Defender Canada. All Rights Reserved.