Make sure this fitsby entering your model number. 0/3/6/9 seconds unlocking time adjustable Fail secure: Locked when power is removed It is mainly used for customers that do not want to physically get up and open the door. With this system, you will be able to let people in by clicking on the RF remote. The remote communicates with the receiver, which can program up to 20 remotes, and it has a range of 100 feet. The function of the receiver is that when the power is on, the lock of your kit is locked and when you press the remote the lock will unlock temporarily to open the door. This lock system also brings an exit button that will allow you to exit from the inside of the door.