Holding force is up to 650 pounds (295 kilograms). The lock features easy installation with versatile mounting brackets for new or existing installation; no power cables are required when mounted to jambs. It also has a fail-safe function, which releases instantly when power is disconnected, no residual magnetism and a fail alarm that is activated by fire alarms. Furthermore, voltage is 12 VDC or 24 VDC and current draw is - 450 mA at 12 VDC and 225 mA at 24 VDC. Warranty is 60 months, it comes with mounting hardware, magnet size is nine inches x 1-1/2 inches x 13/16 inch (228 millimeters x 38 millimeters x 27 millimeters) and armature size is 7-1/4 inches x 1-1/2 inches x 1/2 inch (185 millimeters x 38 millimeters x 12 millimeters).