Our Top PicksMost Versatile Motion Detection CamerasLorexKnown for their well-built, well-designed equipment, Lorex leads the ...

(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.

Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting and sound effects, including some spooky glowing and blinking red eyes, general cawing, and of course ...

A good source of hackable home automation parts has come for a while in the form of inexpensive modules offered by large ...

When intruders enter the field of view of the two PIR sensors, the detector analyzes the body's thermal radiation with correlation and spectral analysis to filter false alarms, making sure that it is ...