I purchased the Scorpion Alarm and I also got the perimenter feature as well. I wanted to have both the perimeter and tilt alarm running the same time. It does not seem to work like that. Is there a reason for this? I would think that you can run both modes the same time. However, I do not see this or even from the manual. Any of you guys that have this alarm can run both modes at the same time? Is this working as designed?