The Otto P8 Vandal-proof series is a durable, robust switch. Offering the same quality and precision tactile feedback found in the standard P8 series. With a variety of case, mounting and terminal styles and a mechanical life of 1,000,000 cycles, this stainless-steel sealed switch is ideal for door access security systems, public transit systems, emergency phones, traffic signals, industrial and process control environments, and anywhere that ruggedness, durability and security are crucial.