– PIR stands for passive infrared, and it’s also called PID for passive infrared detector. It’s an electronic sensor based on heat energy detection that is commonly used for PIR activated IP cameras, lights and alarms.Click to see full answer. Also asked, what is PIR setting on trail camera?”PIR” stands for passive infrared and PIR Angle refers to the degree that the camera can sense movement. Cameras that have a large PIR Angle can detect movement faster and have a better chance of capturing the subject in the center of the frame as opposed to the edges like some lower quality cameras do. is motion sensor a camera? Video Motion Sensors Combines video cameras with advanced signal processing. Some recordable motion sensors start recording when they sense motion. Cameras controlled by motion sensors can save you memory storage by not recording hundreds of hours of useless footage—they only capture the important stuff. Likewise, what is the difference between PIR and motion sensor? What is the difference between Motion Detection and PIR-based Motion Detection? PIR-based Motion Detection: In this case motion is detected by means of a PIR sensor, a passive infrared sensor. This sensor detects emitted infrared energy from objects (humans and animals, but also cars) in the form of heat.What can trigger a PIR sensor?The first cause of PIR false alarms is low or unstable voltage at the detector. Test to make sure the voltage at each PIR is above 13VDC and stable. The second cause of false alarms is sudden infrared movement / heat changes in view of the detector.