Safety devices, such as interlock switches and emergency stop switches, and stylish operating switches are used in printing machines and machine tools. IDEC lineup of explosion-proof products employ technical measures to prevent the generation of ignition sources and are in use at sites containing multiple hazards where explosive gases exist. Operating switches and light towers that signal an error in operation, and other IZUMI products, are an essential part of plastic molding machines. IDEC teaching pendants equipped with enabling switches and other safety devices are well-suited for automated systems and industrial robots.