I have no idea how well the alarm works because I cannot get the salesman, Russ, to call me back for a quote. I have called Sievers twice now, about two weeks apart, and each time the person answering the phone has taken my number and tells me that Russ will call me back and each time I hear nothing from Russ. All I can say is that I tried. So it is now time to move on. Hello ADT or Alarm Force.