Clavis F22+CD-THX Security Thumbturn included, Unlocking the entrance door on-site cancellation

"The child locked the door."

I left my child waiting in the entrance room, and when I closed the door and operated the stroller in the common area, the child apparently turned the thumbturn. The thumbturn is a security thumbturn, but it seems he turned it without any difficulty. From the information on the key's characteristics, I knew it was a Clavis F22 and a security thumbturn.

When we arrived at the scene, we found that there were two door scopes, one above and one above. It's quite rare. When I checked the lock status of the deadbolt, I found that only one location on the bottom was locked.

Now, just as I was about to start work, my husband came running from his place of work and arrived at the same time. Therefore, it is usually unlocked with a key.