What are the indoor anti-lock methods of smart locks?

There are many ways to lock a smart lock indoors. Here are some common methods:

1. The mechanical knob is locked. After locking indoors with mechanical knob, if the main tongue of the lock body is not connected with the lock tongue, the lock can not be unlocked from the outdoor fingerprint after locking; If they are connected, you can open them.

2. Electronic lock. All outdoor electronic unlocking means are shielded by the internal circuit, so as to realize the anti-lock function.

3. The physical key is locked. You need to hold down a key to activate it, and there will be a simpler way to unlock it.