With IP68 and IP69K protection ratings, 20 and 30mm IDEC piezo switches are designed to perform in the most demanding conditions, including applications requiring a hygienic surface (316L stainless-steel), short depth, corrosion resistance and the ability to withstand extreme temperatures and high-pressure washdowns. Piezo technology ensures a long lifespan of over 50-million cycles, while a modern look and built-in dot or LED ring provide increased visual feedback even from the side.