You are also missing the point that there is <i>no</i> indicator of communication failure, no log, etc.<p>In my fire alarm when the batteries are going dead there is a chirp that lets me know of a pending failure. The Xfinity alarm system could do that as well.<p>Instead the alarm system is worse than useless.<p>I can buy a box that always has a green light on it which is exactly what this &quot;alarm&quot; system is doing when there is an extreme failure.