The electronic lock of the hotel door is broken. Is the internal security lock useful?

Almost all smart locks, whether fully automatic or semi-automatic, can be opened from indoors by mechanical start-up in the case of power failure.

Electronic lock In the field of security technology, the electronic password lock with anti-theft alarm function replaces the traditional mechanical password lock, which overcomes the shortcomings of mechanical password lock such as less passwords and poor security performance, and greatly improves the technology and performance of the password lock.