[legion]

I installed a DIY security system a few months ago. I've turned it on a few times when we were out of the house for a few hours and it worked fine.

I put the motion sensor in the 2-story foyer about 9' off the ground floor. It is in the corner of the room facing the stairs/upper floor at a 45º angle. My reasoning is that this would detect people on the first or second floors.

This past week we were out of town for a week. At least once a day (and usually 3-4 times a day) the motion sensor would set off the alarm, I assume from the 10 lb. cat changing floors or going from one side of the 2nd floor to the other.

Any advice on where I can position the motion sensor so the cat does not set it off?