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We've tested and reviewed products since 1936. Read CR's review of the Aqara Smart Lock U400 door lock to find out if it's ...

Door sensors detect door position (i.e., open or closed) based on the precise gap between the magnet and the reed switch.

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🔍 Introduction In today's modern homes, automation plays a major role in improving comfort, efficiency, and security. From switching lights automatically to controlling appliances with a smartphone, ...

Phil is a freelance writer and editor with 20+ years of experience. He has been writing for MakeUseOf since April 2021. With a focus on DIY making and electronics projects, he is passionate about ...

A solenoid lock works on the electronic-mechanical locking mechanism. This type of lock has a slug with a slanted cut and a good mounting bracket. When the power is applied, DC creates a magnetic ...

Often times, we need to secure a room at our home or office (perhaps a secret dexter’s laboratory) so that no one can access the room without our permission and ensure protection against theft or loss ...