Hi all, Please bear with me on this, it's my first post and I've limited knowledge on alarm systems. I self installed a 9948+ some years ago, it has door/window contacts and PIRs feeding into it - all works well and has a autodialler too. The street lighting in my estate has been changed to LED and it's left all the houses in the shadows. I want to improve my security particularly when the alarm isn't set; It dawned on me that the alarm has a chime function that can be set to ding anytime. So, is a IR beam detector (or 2) the way to go to 'protect' my drive and back garden during unset alarm condition (with a chime) and what happens when the alarm is full/part set ? Does triggering the IR beam then set of a full alarm (not really what I want). For example, at night I have a part set program that leaves out the hall PIR only. Ideally I'd like that to continue but the IR beams to just chime if activated. Any pointers will be gladly accepted!! James