This simple Door Chime protects the door and gives a loud Alarm tone when there is an attempt of theft. The circuit is too simple and battery operated. A Normally Closed (NC) reed switch and magnet is ...

As California highway slides toward sea, the fix will take billions $2K tariff checks would go to ‘working families’: Bessent ...

Now you can build your own simple door alarm security system using a tiny microcontroller chip PIC12F635! The circuit is nothing but an aural alert unit, which raises ...

Ring's $199 Z-Wave-enabled Alarm Security Kit is so simple you might overlook it at first. The system includes a base station, a keypad, a door/window sensor, a motion sensor and a Z-Wave range ...

I finally have peace of mind while traveling thanks to the door stop alarm. Our editors and experts handpick every product we feature. We may earn a commission from your purchases. My husband and I ...

Going to try something a bit different today, and talk about some retro technology. Here’s a rather simple gadget called a Bloc-Alarm. Intended for the cheapskate who doesn’t want to actually pay for ...

When you think of Ring, you probably think of doorbells and cameras. But the company known for the video doorbell also has home security with its Ring Alarm. For many, smart security may seem ...

I was flipping through my deadtree archive of magazines recently when I came across an ad for an ingenious little door alarm in 1906. Granted, it’s not fancy. But it probably did the trick. As you can ...

Ring is best known for its video doorbells and security cameras but, alongside making one of the best video doorbell ecosystems, it also makes one of the best home security systems. Sold in various ...

There’s a spy movie – probably from the [James Bond] franchise – in which our hero is staying in a fancy hotel. It’s crawling with enemies, naturally, and eager to see if one has been snooping in his ...

February 20, 2018 – STI’s newly redesigned Exit Stopper Door Alarm continues to help solve the problems of unauthorized exits and entries of fire or emergency doors. The multifunction door alarm now ...