LUV2TINKER 0 Posted April 14, 2012 This isn't directly about CCTV, but it seems like it could be factor to be reckoned with when trying to properly configure the CCTV system. I keep reading conflicting explanations of how the motion sensors in dual outdoor floodlights work. Are those floodlight motion sensors merely receiving IR from the images in their field of view (passive IR), or are they also sending IR out and bouncing it back off those images? And the other question is a bit trickier, i.e. about whether there is merely one sensing area on them that encompasses the entire sensor or is it an array like a grid of sensors built into that same sensor (like with a CCD sensor)? Share this post Link to post Share on other sites