#Touch-Switches-Suppliers-in-Delhi-India A touch switch is a type of switch that only has to be touched by an object to operate. It is used in many lamps and wall switches that have a metal exterior as well as on public computer terminals. A touchscreen includes an array of touch switches on a display. A touch switch is the simplest kind of tactile sensor. Varni Digital is a leading #Touch-Switches-Suppliers-in-Delhi-India.