Designed for explosive environments, the rugged IRB-EXP photocell is used as a safety, reversing, or opening device in conjunction with automatic operators. The IRB-EXP will work with any control board that accepts dry contact on the input. The easy-to-install IRB-EXP is used with garage doors, rolling doors, parking barriers and other equipment located in explosive environments. Unit is a specialty item, lead time 4 to 6 weeks, no credit / no return product