The floats of the magnetic float level switch are designed for a specific minimum fluid density (specific gravity), based upon the volume and weight of the float elements. The floats contain a magnet and the stationary stem can incorporate the reed switches corresponding to each float. The reed switches open or close their electrical contacts when the magnetic element in the floats come in contact with the reed switch locations in the stem. The reed switches will reverse their contact state when the magnet in the float element moves away from the location of the reed switches in the stem. 

The FLM Series is a mini magnetic float level switch product line that is very cost-effective and compact. As such these magnetic float level switch units are easily installed on small machinery and in areas where very little space is available inside/outside the vessel in which they are installed.

Float level switches are suitable for the control of liquid levels in tanks, vats and boilers, and for the control of pumps, valves, and alarm systems. They can be mounted vertically directly within the process environment or in a lateral containment chamber external to the process.