Inductive sensors are non-contact proximity sensors that detect ferrous targets, ideally ones made of mild steel thicker than one millimeter. They consist of four major components: a ferrite core with ...

Forewarned is forearmed.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath is a writer covering audio, video, and smart-home ...

There’s something about clocks — sooner or later, every hacker wants to build one. And we end up seeing all kinds of display techniques being used to show time. For the simplest of builds, 7-segment ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Roy Furchgott We’ve added full reviews of our new picks: The Kidde Smart Smoke ...

Smoke detectors can be useless or a nuisance in the wrong places. I'm going over what to avoid and where to install them. Tyler has worked on, lived with and tested all types of smart home and ...

Looking for an alarm system to make you feel more secure? We've tested all the top professional and DIY home security systems to help you decide which is right to protect your family and property.

We may receive a commission on purchases made from links. Whether you live in a gated community, a neighborhood, or an apartment, home security is something that none of us can overlook. You never ...

I’ve been working with computers for ages, starting with a multi-year stint in purchasing for a major IBM reseller in New York City before eventually landing at PCMag (back when it was still in print ...

Biosensors are devices used to detect the presence or concentration of a biological analyte, such as a biomolecule, a biological structure or a microorganism. Biosensors consist of three parts: a ...