“To function effectively as part of a security system, motion sensor lights must be installed at the correct height and in the right location. Generally, they should be mounted at least seven ...

It has a list price of $44.99 / £39.99 / AU$69.95, which means it's not the cheapest motion sensor around, and if you're not going to use its security functions then you might be better served by ...

The 6-piece SimpliSafe security system ups the number of entry sensors to three and swaps out the key fob and motion sensor for a 1080p outdoor security camera.

The Motion Sensor 2S is a successor to the original Xiaomi Motion Sensor released in 2019, and offers some big improvements in sensitivity, power efficiency, and responsiveness.

Aqara's mini security system offers excellent value and surprising advantages for the right spot, plus a host of smart features. Article updated on June 21, 2025 at 4:00 AM PDT ...