The only system comparable with Xfinity Home is the Vista 20P by Ademco aka Honeywell as long as you don't have a zone expander comcast can take over your system as is if you have a zone expander above the normal 8 zone they will zone double putting your windows on one zone motion on one zone and doors on one zon. Also make sure they schedule a premise survey to have a certified tech to come check the compatability of your system with the touch screen.
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