The 5392 contains a Visionis EL102-FSA, a normally open eletric strike lock that provides 770lbs of reinforcement with a rubber lining and a power supply. The purpose of the rubber lining is to prevent static electricity. This model can be used on wood, metal, and PVC doors. Whether it is for a simple or advanced access control system, this strike suits multiple security needs and is reliable. The strike is installed within your door frame and used to secure your door for your access purposes. Electric strikes are great for doors, small enclosures or any area door you would like to give added security to at any time. This particular electric strike is fail safe; meaning that in the case of a power outage, the latch will disengage and the door will become unlocked.