Please press the film.The switch deforms downwards, contacting the electrode plate of the lower circuit to conduct. When the finger is released, the upper circuit contact bounces back, breaking the circuit and triggering a signal. The film switch has a stringent structure, a beautiful appearance, and good sealing properties. It is moisture-proof and has a long service life. Widely used in electronic communication and electronic measurement.InstrumentIndustrial Control, Medical Equipment, Industry,Smart ToysHousehold appliances and other fields.