One, does the hotel door lock chain prevent theft?
A security chain consists of a metal chain and a chain link. It is installed on the inside of the door and prevents unauthorized access to the room.

The chain lock is installed on the back of the door, not far from the edge, with one end fixed to the door frame and the other end being movable, allowing it to be inserted into the chain lock on the back of the door to lock. When the anti-theft chain is installed, the door can only be opened to about 5-8 cm, making it impossible for people to pass through, and also preventing people from reaching into the door from the outside to grab the chain lock on the back of the door. This ensures that the owner can verify the identity of the visitor without being suddenly attacked. Therefore, chain locks on hotel doors do have anti-theft effects.
Two. How to use the chain for hotel door locks.
1、How to lock a hotel door chain?
After returning to the hotel, we first close the door. After closing the door, we can see the chain installed on the door leaf and door frame, either below or above the door lock. We first pick up the chain on the door frame, then align it with the hole on the door leaf and insert it, then slide it down along the passage to secure the chain at the bottom.
2、How to open a hotel door lock chain
When you need to unlock the chain, first grasp the hanging chain, then use your thumb and index finger to pinch the part of the chain near the door frame. Slide the chain upwards until it reaches the exit, and then pull the chain out. This will unlock the hotel door chain.