R Series pushbuttons are made of durable stainless steel for use in aggressive environments, such as ticketing machines, vending machines and access control panels. Available in 16mm and 19mm varieties and LED colors that include red, green, yellow, orange, blue and white. Mounts flush to the panel and connects with soldering plug-in terminals, offering a long electrical and mechanical life. The R Series meets IP65 international standard for outside use and offers a mechanical service life of 1,000,000 operations within an operating temperature of -20°C to +70°C.