magnetic float level switch / for liquids / flange

Dual-Magnet Float Switch Model NGS :

Method of Operation
As the level rises and falls the inclination of the float is
changed causing a permanent magnet in the float to be de-
flected which in turn repels a rotatable opposing magnet.
This forced snap-action-contact effect operates a micro-
switch with a plunger. Even very small changes in level can
be detected in this way.
Application
Control and monitoring liquid levels in open and closed
vessels, especially:
Min. or Max. monitoring of liquid levels
Monitoring and controlling a continuous liquid level
when only side installation is possible due to lack
of space or considerations of cost
when a very rugged monitoring device is
needed for tough environments
when hazardous areas or shipbuilding
approval is required.