Manufacturer Norton Door Controls Model 7224MPDI-RH-24V-689 Application Consists of a Hook-Up Board to receive the power input, an integral smoke detector module and a door closer assembly with internal electrohydraulic holder capability. A Master Unit can control a single door or one leaf of a pair of doors. A Slave Unit is required on the opposite door leaf. Size ANSI Size 4 Mounting Hinge Pull Side Hand Right Hand – RH Input Voltage .070@ 24VAC/DC U.L. Listed UL Listed ANSI/BHMA ANSI/BHMA A156.15 certified Warranty 2 Year Warranty Weight 15.0000