All biometric door locks have a master key in case of power loss (the keyhole itself may be concealed). Some can be powered externally for temporary access, using a nine-volt battery.

All biometric door locks have a master key in case of power loss (the keyhole itself may be concealed). Some can be powered externally for temporary access, using a nine-volt battery.

Biometric door locks offer unrivaled security by reading fingerprints. Because everyone’s fingerprints are unique, only those who are authorized can gain access. There are many different mode… ...

Arduino enthusiasts looking for a new project to complete over the weekend might be interested in this Arduino door lock which is automatically activated as soon as you enter incognito browsing ...

This fingerprint-scanning lock lacks smart features, and it has more bugs than I’d want on my front door.

It’s much less suspicious to access a room using a key than connecting a device with wires to a lock. Furthermore, the master key we create is a totally normal, legitimate way of opening any door.