These ADA Compliant, multipurpose push button switches cover a wide range of applications both indoors and outdoors. They're called Stopper Stations. They incorporate a unique, patented design that helps dramatically to stop accidental activation. A number of standard models are available or we can create custom units to meet your needs exactly. You have your choice of any of five universal shell colors, several button styles, standard or custom wording and language.HOW THEY WORKBecause of their superior, patented design combined with quality construction throughout, you can expect outstanding performance for years to come. In fact, many STI customers are surprised to find that all this quality is available at no increase in price. Plus, customers appreciate the option to protect the switches with STI protective covers that carry a three year guarantee against breakage in normal use, one year on electro mechanical and electronic components. For indoor applications, you can order your Stopper Station with a pre-alarm cover to help stop malicious and accidental activation.Main Features:?General Information: Multipurpose push button switches cover a wide range of applications both indoors and outdoors.; Three year guarantee against breakage of polycarbonate in normal use (one year on electro mechanical and electronic?components).?Design: Unique, curved design helps protect against accidental activation.?Construction: Station housing molded of tough polycarbonate.; UL Listed to U.S. and Canadian safety standards.; Models used with LT-1UL Latching Timer Module are Listed for access control.; Stainless steel backplate.; Push buttons are ADA Compliant (excludes "3" key switch button).?Installation: 5VA flammability rating on backplate and spacer.; Typical working properties of polycarbonate are -40? to 250?F (-40? to 121?C).; Polycarbonate complies with FDA regulations for food contact applications.?Options: Your choice of color - blue.; Standard or custom text or hi-res logo.; Custom text in any language.; Protect with STI indoor/outdoor protective covers.