try a dei alarm with a paging system that way if you are inside a building and you alarm goes off it notifies you right away. dei owns viper, clifford, hornet, automate, etc. the newer alarms have a 1 mile range line of sight. so about 1/4 mile range if in buildings, depending on how many walls and other interference that may be around. my wife was in the bank when our alarm went off, she came out after the remote started beeping/vibrating and sure enough the lady parked next to us was in her car backing out trying to leave. so my wife stopped her and got her info. that saved us some money, we made the lady pay to fix the big dent and scratch she put in it. but that right there covered the cost of the alarm. so well worth it to get one. also the make alarms that work with iphone/android as well