C-4AS fire protection vessel door lock
This door lock incorporates double dead dolts ,single cylinder and master key mechanism. Outdoor locked with a key to open or stay the dead bolt, from the management role. The lock may be opened freely by lever handle at ordinary time , turn the konb up to 90 inside , the red indicator will appear on the outside and dolt locked, and the door can not be opened by the handle but use the key.
It is suitable for the doors thickness in the 36—45mm the bathroom door.