Why leave a keyhole hotel card lock?

Basically hotel card lock will have a mechanical keyhole, and hide in the lock on the front panel, will not affect the overall aesthetics. Hotel lock why still need to keep the lock hole? Actually factory door lock home smart door lock and hotel card lock, will retain the lock hole, one is for national requirements, avoid breaking story, increased aid efforts; Another is to set aside. Hotel card locks are generally use card to open, but encountered a hardware failure or locks under the condition of low power can't open the door, mechanical key secondary sex may show up, can help at a critical moment, the door CARDS can also be authorized, solve some emergency.
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hotel electronic lock supplier bluetooth hotel lock is slower than hotel electronic lock but has a number of special applications, such as for hotel electronic lock supplier.
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