Suitable for a wide spectrum of applications, the PSE family is a group of Piezo switches from Schurter, that have been tested through the use of a high-pressure vapor stream at 90 Bar and temperature of 80°C. The device features a lifetime of over 20 million switching cycles, contains no moving parts and are manufactured with stainless steel or aluminum housings. The switches are suitable for use in industries with exposure to high levels of dirt and grime. Industry examples include food processing plants such as dairies, meat and poultry processing, commercial cooking appliances such as deep fryers, cookers and grills, as well as industrial transport vehicles such as control switches for dump trucks, cement mixing trucks and truck lifts. The switches are available in standard mounting diameters of 16, 19, 22, 24, 27 and 30 mm. Additional mounting diameters, materials, colors and shapes can be custom designed. Laser lettering is available on the surface. A variety of standard legends exist. Customer specific lettering and symbols can also be produced. Point or ring illumination is offered in mounting sizes 22 mm and up. The illuminated actuator surface can be displayed with the illumination on in a continuous mode or to indicate the switch in either the on or off position.