Just do not know how this is used
My family is also the security door, put a mention that the insurance, on the outside and open the same key, the specific principle is unknown
You said to move up the door is locked, so after the need to use the key to open the door is the door of the company, I feel this door is not very good
My family's anti-theft door lock is this lock, manufacturers like to call it "double live lock", refers to the lock door does not need the key, the outside of the handle up a lift can lock the door, very convenient. Of course, with the outside of the door handle is usually not all the locks are locked, if you want to be more secure, you can also use the key and then lock the lock again, you can lock all the locks. In the open door and other door locks are the same, you must use the key Caixing. Locked from the outside, the door inside the handle can be opened at any time. There is also a door plug, with the key is not open, and only with the inside of the handle can open.
