electric lock from China manufacturer includes a lock case, an electronic lock circuit board installed in the lock case and a mechanical lock cylinder used to open the electronic lock. The upper protective cover is used to cover the lock hole, and between the lock shell and the protective cover, there is a micro switch that is triggered when the protective cover is opened to expose the lock hole, and the micro switch is electrically connected to the microprocessor on the electronic lock circuit board. 

The new electric lock from China manufacturer has the following beneficial effects: when the protective cover is opened to reveal the lock hole, the micro switch is triggered to give a signal to the microprocessor, and if the mechanical lock cylinder has not been opened by the key within a predetermined time, the microprocessor will send out a signal. The alarm signal prompts relevant personnel through sound or light, which improves its anti-theft performance.
The above is a brief introduction to some knowledge about electric lock from China manufacturer.