Daily Mail journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission - learn more Thousands of parents are obsessing ...

It is fundamentally against both the IBC and IFC codes to physically lock doors in occupied buildings — preventing occupants to freely exit in the case of a fire (Note: There are some exceptions, and ...

The DS-K4H250D Double-door magnetic lock is designed for wooden door, glass door, and steel door with the opening angle of 90°. The maximum thrust of the lock is 600kg. It can be used for controlling ...

No spooky mansion is complete without a secret passage accessed through a book shelf — or so Hollywood has taught us. What works as a cliché in movies works equally well in an escape room, and ...

[Jeremy Blum] wrote in to share his LibeTech QR Code Door Lock project. He developed it during his Senior year at Cornell University along with three of his classmates. It seeks to move away from ...