Special version on request e.g.: Electrical status monitoring. Function from the inside: The door has a panic door fitting on the inside. When actuated, the latch and the pre-locked bolt are retracted. The door can be opened. Function from the outside: There is a lever handle on the outside of the door leaf. The latch can only be retracted in the unlocked state by actuating the lever handle. The door is not yet secured by pulling it to from the outside. To secure the door, it is necessary to lock it with the key. To open the door, the key must be used to unlock the door and the latch retracted by actuating the lever handle.