Ben P

Spot on, thank you! I'll see how I get on later today. Agreed on the wired system, unfortunately didn't consider this until finishing multiple rooms. So wireless is my only real option now Cheers

Thanks for that! I assume with the mains disconnected there is a backup feed as the sensor still appears to flash red when I trigger it? When you say isolate the voltage, are you meaning to ensure the cables are kept isolated from one another when removing them off the old PIR? Longer term I will be swapping the alarm for a wireless system but for now I just wanted to make it look neater as the whole room has been replastered and painted.

Hi everyone, I have an old house with a Logic 4 key operated alarm system fitted. I need to change the old grotty looking PIR sensor for a new one. Can anyone help advise what mode or procedure I have to put the alarm box in to swap out the PIR please? Box is the same as this one; https://www.picclickimg.com/d/l400/pict/233496060845_/Logic-4-key-operated-home-alarm-system-intruder.jpg Any help would be much appreciated. Cheers Ben