Manufacturer Rutherford Controls Model 3319?05 x 26D Lock Functions Storeroom Function: Outside lever always locked, opened with key. Inside lever always unlocked Handing Non-Handed Operating Voltage 12VAC or 12VDC Mode of Operation Fail Unlocked Power Requirements Current can be AC or DC either 12 or 24 volts ANSI/BHMA ANSI 156.2 ; 3 Hour Fire Rating Compliances ADA Compliant U.L. Listed cULus 3 Hour Fire Rating Warranty Lifetime mechanical warranty Weight 8.0000