What is a float level switch?

Float level switch

Basically float switch is the most common type of level switch. It is mounted or floating on the media to be sensed. Suppose it is floating on a liquid. When the float is in the upright position or above the upright position, it means the level is correct. Now, let's say the float goes below the vertical position. This means the level has dropped and because of this, the switch will change its electrical output.

The switch consists of a magnet with a reed switch. It is the switch that transmits the electrical signal. The switch is moved by a magnet which changes its position according to the floating level sensed.