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Almost certainly The only of the three forms of presence sensors, magnetic prox switches are restricted to detecting magnetic materials only, such as a everlasting magnet. The commonest type of magnetic prox switch is a “magnetic reed switch,” which has two skinny metallic plates, or reeds, enclosed in the glass bulb with inert fuel inside of.
An optical switch is a variety of proximity switch and this device provides a photocell and a light-weight resource. The system would respond to changes from the acquired quantity of sunshine, The sunshine beam emitted with the emitter diode is interrupted or reflected by the object to generally be detected.That is a preview of subscription content