Manufacturer Security Door Controls Model 1561SV Application Integrated electronics, 1-5/8″ depth for 1-3/4″ to 2″ frames Housing Dimensions 8″L x 1-1/2″W x 1-5/8″D (203.2 x 38.1 x 41.3mm) Armature Plate Dimensions 8″L x 1-1/2″W x 7/8″D (203.2 x 38.1 x 22.2mm) Door Type Single Door Voltage Auto Sensing 12 to 24 VDC Holding Force 2000 lbs. (907 kg) Mounting Type Surface Certifications ANSI/BHMA Grade 1 Conpliant U.L. Listed UL Listed NYC MEA MEA Listed Warranty EmLock Lifetime Weight 12.0000