float switch

noun

1. an electric switch controlled by a conductor floating in a liquid.

Example Sentences

In the past, West Point has had trouble with equipment, including a float switch that signals water levels in the plant to operators.

From Seattle Times

Connect a stranded wire�20-gauge is large enough� to the wire from the float switch for the bilge pump.

From Time Magazine Archive

At the very least, make sure there is an electric bilge pump with a float switch in this area.

From Time Magazine Archive

Electrical Short If one of your batteries is draining faster than normal, if an onboard lamp is dimmer than it should be or if a bilge pump isn�t starting even though the float switch is raised, you could have a partial short in your electrical system.

From Time Magazine Archive