Locks come in a variety of types and designs to meet a wide range of security needs. While many locks use a simple key-and-tumbler design, some locks use technology that is significantly more advanced ...

Smart locks that supplement or replace your front door deadbolt do much more than lock and unlock your door without a key. Most smart locks (and all of the locks on our top picks list) let you receive ...

If your smart lock is connected to a voice assistant, be sure to use a PIN to unlock it with voice commands. It's a stretch, but it is possible to create workarounds with IFTTT to avoid using the PIN.

This simple code lock circuit described here is of an electronic combination lock for daily use. It responds only to the roght sequence of four digits that are keyed in remotely. If a wrong key is ...