The circuit presented here is a very simple and yet highly effective alarm system for protecting an object. The circuit requires no special devices and can be built using components that you will no ...

Alarm systems are complicated affairs. However, if you’re just looking to catch a sandwich thief at work or a cat spilling over all you water bottles, then Make shows you how to build an alarm system ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. We originally tested and reviewed the Ring Alarm Security ...

The best DIY home security systems are affordable and easy to set up without a professional. NerdWallet is committed to editorial integrityMany or all of the products on this page are from partners ...

Overview: Smart home security systems combine cameras, sensors, and alarms to protect your home around the clock.These setups ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. is an editor overseeing The Verge’s product reviews and service journalism programs. Dan has covered ...

In this step-by-step tutorial, you'll learn how to make a very loud, simple, and powerful alarm using everyday materials. Perfect for enhancing security at home, this video guides you through the ...

From preventative artificial intelligence to more accurate notifications, these are the new home security technologies you ...

Choosing a home security system is anything but simple. You have to decide whether you want to install it yourself or hire a professional, what security cameras and ...

Home security systems—once the exclusive domain of high-priced professional installers—have never been more affordable, and the hardware and software is simpler, more intuitive, and easier to set up ...