A1: A magnetic float liquid level switch is a device used to detect the level of liquid in a tank or container. It operates on a simple yet highly reliable principle: a float containing a magnet moves ...

LONDEX, LTD., 207 Anerley Road, London, S.E.20, have introduced a patented system (“Lectralevel”) of floatless liquid level control, designed for automatically pumping out, filling or maintaining the ...