二、 The difference between proximity switch, limit switch, travel switch:
1、The proximity switch is a contactless switch with a long life and is suitable for passing signals.
2、The limit switch, also called the travel switch, is a contact switch, suitable for single-direction position detection, because of the contact, the relative life is short.
3、The stroke switch is also known as the limit switch, the stroke switch and the limit switch are position switches, but the stroke switch can detect the stroke and can be used as an input signal to control the circuit at a certain distance. It is different from the limit switch to detect the signal of the limit position and play the role of stopping and protecting.
