(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR ...

Motion sensing is a key ingredient in the portable designs built around augmented reality (AR) and virtual reality (VR) applications. But while motion sensors are bridging the real and virtual worlds, ...

Whether you’re looking for added security at home or easier navigation at night, motion-sensor lights can provide a boost of visibility whenever you need it. The best outdoor motion-sensor lights have ...

Motion sensors have long been one of my favorite HomeKit devices for many years. However, the durability and speed of alerts are incredibly important when it comes to outdoor motion sensors. The Onvis ...

We may earn a commission from links on this page. One of the most common first sensors people buy for their home is a motion sensor. But in almost all cases, you want a presence sensor instead. The ...

Jon has been an author at Android Police since 2021. He primarily writes features and editorials covering the latest Android news, but occasionally reviews hardware and Android apps. His favorite ...