Bilge Monitors & Float Switches

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.

Bilge Monitors & Float Switches

Water Witch Submersible Electronic Bilge Pump Switch 101

Rule Rule-A-Matic Bilge Pump Float Switch

Rule Rule-A-Matic Plus Float Switch

Rule SuperSwitch Bilge Pump Float Switch

Aqualarm Heavy Duty Pump Switch - 20090

Johnson Pump Bilge Alert/High Water Level Alarm with Sensor - 72303

Johnson Ultima Switch - 36303

Whale Electric Bilge Switch - BE9003

Aqualarm Bilge Pump Cycle Counter - 20045

Water Witch Bilge Pump Switch - 217

Rule High Water Bilge Alarm

Blue Sea Systems M2 OLED Digital Bilge Meter - 1842

Aqualarm Smart Bilge Pump Switch with Alarm - 20038

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

Water Witch Submersible Electronic Bilge Pump Switch

Aqualarm Bilge High Water Alarm with Detector - 20240

Whale Electric Bilge Switch with Time Delay - BE9006

Water Witch Audible Bilge Alarm with Mute - BP500RD

Groco Bilge Pump Control Kit - AS-100

Johnson Pump Bilge Alert/High Water Level Alarm Panel with Ultima Switch

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

Aqualarm Pump Counter - 20045-SM

Aqualarm High Bilge Water Level Warning System - 20131

Seachoice Universal Float Switch

MTI Industries High Bilge Water Alarm - SA-1000XL

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

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

Attwood Float Switch - 4201-7

Seachoice Bilge Pump Control Switch - 19391

Maretron Bilge High Water Detector - BHW100

Osculati Automatic Bilge Pump Switch - 16.609.00

Attwood S3 Series Automatic Bilge Switch - 4801-7

Rule ECO Switch

Aqualarm Bilge Pump Alarm - 20042

Attwood Automatic Float Switch - 4202-7

Johnson Replacement Bilge Pump Intake Basket - 54264PK

Johnson Replacement Bilge Pump Intake Basket - 54274PK

Aqualarm Bilge Supervisor - 20074

SHURflo Bilge Switch - 359-111-30

SHURflo Bilge Switch - 359-111-40

Water Witch Bilge Pump Cycle Counter - BC100RD

Skyhawk Oversea Bilge High-Water Sensor - SHBHWG1

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

Maretron Switch Indicator Module - SIM100-01

Maretron Vacuum Switch - VS-07.0HG

Seachoice Automatic Bilge Pump Float Switch - 26014SC

Skyhawk Oversea Bilge Pump Sensor - SHBLGG1

Johnson Replacement Bilge Pump Intake Basket - 54235PK

About Bilge Monitors & Float 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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