Special version on request e.g: Electrical condition monitoring, prepared as cylinder lock for two cylinder perforations. Use: With connecting rod no. 1108 and two deadbolt locks no. 1033. Function from the inside: The door has a lever handle on the inside. The latch and the pre-locked bolt of the main lock as well as the bolts of the additional bolt locks connected to the main lock by means of the connecting rod are retracted by actuating the lever handle. The door can be opened. Function from the outside: The door has a fixed knob on the outside. After the door is pulled to, the latch prevents the door from being opened from the outside. The door can only be opened with the key. The latch is retracted by key operation with the help of the key-operated latch. To open the locked door, the key must be used to unlock the door and the latch retracted by means of the key-operated latch or the lever handle. The door can also be unlocked by using the key. The bolts of the main lock and the bolts of the additional locks are locked back.