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 ...

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 ...

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 ...

The main principle of this circuit is that the door lock opens only when the buttons in series are pressed at a time. We can use it to lock the doors and for other security purposes. This article ...

Posts from this topic will be added to your daily email digest and your homepage feed. The Aqara U200 is a retrofit door lock with a separate keypad and a fingerprint reader. It may also be the first ...