acableconnection 0 Posted October 30, 2007 I had someone ask me what PIR stood for, and had a brain fart... Share this post Link to post Share on other sites
CCTV_Suppliers 0 Posted October 30, 2007 Last time I checked, it was an abbreviation for Passive Infrared devices (PIR devices). Share this post Link to post Share on other sites
Soundy 1 Posted November 8, 2007 Last time I checked, it was an abbreviation for Passive Infrared devices (PIR devices). Yup... and the only time I've seen the term applied to cameras is when a board camera is concealed in a (fake or operational) PIR motion sensor. I guess a camera with IR LEDs would technically be considered "active infrared". Share this post Link to post Share on other sites
