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Permanent Magnets

Magnetic Reed Switches

A Reed Switch requires either a permanent magnet or magnetic field in order to activate the switch, thus it is commonly called a Magnetic Reed Switch.  Permanent magnets are available in a variety of different sizes, magnetic materials, and shapes such as cylindrical, rectangular, disk or ring form. 

The interaction between the Reed Sensor/Switch and Magnet is influenced by the magnet's mounting position, environment and the presence of another magnetic field.

Ideally, the magnet should be mounted in the moving part of the application. Professional tuning of the magnet and Reed Switch can improve the overall functionality of the whole sensor-magnet system.