A capacitive touch switch is a type of touch-sensitive technology that uses the electrical properties of the human body to detect touch. Capacitive touch technology works by creating an electrical field on a conductive surface, such as a touch panel, which can detect changes in capacitance when a conductive object, such as a finger, comes into contact with the surface.
In a capacitive touch switch, a conductive electrode is placed on a non-conductive surface, such as a glass or plastic panel. When a person touches the surface, their finger acts as a conductive object, changing the capacitance of the electrode and registering the touch as a signal.