I have a very basic CCTV setup in my shop, and one of the camera's blew. So I have replaced it with a Colour IR camera and it works brilliantly, so I want to upgrade the other 7. The problem I have is that the camera seems to keep setting off my PIR sensors and therefore the building alarms. Is there anything I can do to stop this as my insurance has told me I need to have both the alarm & camera's that can see in the dark working, as I was robbed a few months ago and my old camera's got nothing but black.