The Hall proximity switch/close the switch is a new type of automatic switching device based on the Hall effect principle. In the light industry, chemical industry, textile, printing, machinery, telecommunications, transportation, automation, computer and other fields have a wide range of applications.

Hall proximity switches/close the switch, when a current-carrying metal or semiconductor sheet is placed vertically in a magnetic field, potential differences occur across the sheet, a phenomenon known as the Hall effect. When the magnetic object moves close to the Hall switch, the Hall element of the switch detection surface changes the internal circuit state of the switch due to the generation of the Hall effect, thereby recognizing the presence of a magnetic object nearby, thereby controlling the switching of the switch. The proximity switch must be a magnetic object.