External access requires a key to open the outside door handle. When closing the exit door, it automatically locks, preventing unauthorized entry. It includes a dogging quick-opening design, allowing you to set it to a constant open mode, suitable for large-scale evacuation.

External access requires a key to open the outside door handle. When closing the exit door, it automatically locks, preventing unauthorized entry. It includes a dogging quick-opening design, allowing you to set it to a constant open mode, suitable for large-scale evacuation.