Bilge Monitors & Switches

About Bilge Monitors & 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.

Bilge Monitors & Switches

Sensar Marine Boat Monitor with Bilge Sentry - BMBS700

Blue Sea Systems M2 OLED Digital Bilge Meter - 1842

Blue Sea Systems 360 Panel Dual Bilge Pump Control - 1522

Aqualarm Bilge Supervisor - 20074

Osculati Automatic Bilge Pump Switch - 16.609.00

Groco Bilge Pump Control Kit - AS-100

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

Water Witch Bilge Pump Cycle Counter - BC100RD

Rule High Water Bilge Alarm

Aqualarm Smart Bilge Pump Switch with Alarm - 20038

Rule ECO Switch

Whale Electric Bilge Switch with Time Delay - BE9006

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

Water Witch Audible Bilge Alarm with Mute - BP500RD

Water Witch Submersible Electronic Bilge Pump Switch

Rule SuperSwitch Bilge Pump Float Switch

Aqualarm Bilge Pump Alarm - 20042

Water Witch Bilge Pump Switch - 217

Rule Rule-A-Matic Plus Float Switch

Aqualarm Bilge Pump Cycle Counter - 20045

Aqualarm Bilge High Water Alarm with Detector - 20240

Johnson Ultima Switch - 36303

Aqualarm Pump Counter - 20045-SM

SHURflo Bilge Switch - 359-111-40

Water Witch Submersible Electronic Bilge Pump Switch 101

Seachoice Automatic Bilge Pump Switch - 36152SC

Rule 3-Way Lighted Rocker Panel Switch

Rule Rule-A-Matic Bilge Pump Float Switch

Whale Electric Bilge Switch - BE9003

Blue Sea Systems Contura Water Resistant Bilge Pump Control Switch Panel

Attwood S3 Series Automatic Bilge Switch - 4801-7

Sensar Marine Bilge Sentry Extension Cable - 6 m (19' 8 7/32") - BSEC6M

SHURflo Bilge Switch - 359-111-30

Aqualarm Heavy Duty Pump Switch - 20090

Johnson Bilge Pump Control Panel Switch

Rule 3-Way Panel Switch - 45

Seachoice Bilge Pump Control Switch - 19391

Rule 2-Way Panel Switch - 49

Attwood Float Switch - 4201-7

Attwood Automatic Float Switch - 4202-7

Rule 3-Way Lighted Panel Switch

Attwood 3-Way Bilge Pump Switch - 7615A3

Seachoice Universal Series Float Switch - 69792

Seachoice Bilge Pump Switch

About Bilge Monitors & Switches

Automatic Bilge Pump Float Switches

How does a float switch work?

Can I DIY my bilge pump switch installation and wiring?

And the best automatic bilge pump switch is...

Bilge Monitors & Manual Pump Switches

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