(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.

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

An internally fitted pet alley mask helps solve the problem of pets inadvertently activating the alarm. The integral swivel bracket simplifies installation and offers added flexibility. Contemporary ...

The VX-402 from Optex is a 40' x 40' hardwired outdoor detector that provides the stability and reliability necessary for an outdoor PIR sensor. With its unique design and dual PIR detectors, false ...

The NSW8000 provides a versatile, convenient network sensor that gives facility teams a fuller picture of what’s happening ...

There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network ...