Motion sensors are a useful way to automate lights and other tasks in your smart home.

We may receive a commission on purchases made from links. Motion detectors might make you think about smart security systems and surveillance, but they can be great and inexpensive tools that you can ...

If you have mischievous children or forgetful elderly in your life, you might want to build a couple of these tiny motion detection alarms to help keep them out of harm’s way. Maybe you want to keep ...

Your garden variety motion detector uses IR, but these days, there are fancier technologies for achieving similar goals. If so desired, you can source yourself a microwave-based presence sensor ...

My progress toward a truly “smart” home has been painfully slow. I’m sick of unreliable voice commands, flaky smart switches, and poorly designed apps. Where’s the seamless experience that was ...

The best home security systems are user-friendly, affordable and customizable to your needs. NerdWallet is committed to editorial integrityMany or all of the products on this page are from partners ...

Researchers at the Georgia Institute of Technology have created a passive motion/contact sensor that detects motion using ...