... temperature:-40oC-+80oC 3.with transparent windows 4.Life :more than 5 million times Flat type membrane panel specifications/ special ... PET ,metal domes, PET, connectors,terminals,led ,green mask tail,3M468 back adhesive etc.Membrane switch advantages:1. Beautiful appearance, rich and ... are lowest ,the life expectancy of different types of membrane switch is more than 100 million times.6.Easy to ...