ive got a little white 10 lb yorkie-poo alarm. if that doesnt scare an intruder away then my .357 stainless steel will! ive had an alarm system for many years but here in the villages i dont feel the need for one. there is nothing more frightening than an alarm system going off in the middle of the night because of a malfunction. and they all do at one time or another. no thanks.....the lack of crime is one of the many reasons we live here.