6000 Series controls provide a popular selection of request to exit (REX) controls in multiple switching configurations. Monitoring is accomplished with optional illuminated or audible indicators. 1-5/8'' Dia. Plastic Red Button Marked EXIT NFPA 101 Code Standard finish - Brushed Stainless Steel US32D. FORM Z Contacts (SPDT-Double Break) with 0-60 second Pneumatic Delay, factory preset to 30 seconds.