This simple combination lock accommodates codes from 1-9 digits long, with the only restriction being that the same digit cannot be used twice. The circuit shows strapping for a 4-digit code, in this ...

If you're looking for an affordable and easy way to make your front door smart, the SwitchBot Lock Pro might be just the solution. The SwitchBot Lock Pro is the upgraded version of the original Lock, ...

Padlocks are portable locking devices that we all learned about as kids to secure our school lockers, bikes, and other valuables. They come in an infinite number of configurations and are controlled ...

Leaving a spare key under the doormat or on top of a doorframe is never a good idea. A dedicated lock box for your spare keys allows you to provide entry to others when you’re not around—like dog ...