In fact, the working principle of the four pin light touch switch is similar to that of the ordinary button switch. It is composed of normally open contacts and normally closed contacts. In the four pin light touch switch, the function of the normally open contact is that when pressure is applied to the normally open contact, the circuit will be in the on state; When this pressure is removed, the original normally closed contact is restored, that is, the so-called open contact. This pressing force is the action of opening and closing the button with our hands. In a word, the working principle of four foot touch switch is well understood.

The application scope of four foot touch switch, such as electric wind, microwave oven, TV, electronic fat scale, electric rice cooker and electronic kitchen scale in household appliances; Monitors and visual walkie talkies in security products; Recorder, camera, etc. in the computer; Four foot touch switches are used in the fields of call system in medical equipment, sphygmomanometer, thermometer, massage chair and running machine in fitness equipment. In addition, there are many aspects, and from the application range of four foot touch switch, it can be seen that this switch will be more widely used in the future development.