Today, there’s no need for a spare key—or a key at all in most cases. With an Internet-connected door lock, kids can punch in their personal code to unlock the door or use their smartphone to send an ...

Smart locks have certainly elevated the way we enter our homes. But while smart locks and other smart home devices can make your home more secure and offer some level of convenience, they're not ...

As noted in both our Level Bolt and Level Lock – Touch reviews, one of the appealing characteristics of these smart locks is that they look like ordinary and unassuming deadbolts. In fact, the Level ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, ...

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 ...

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 ...