Adding HA to an existing house

If you put multiple motions and crosszone them (an "anding" circuit) you could minimize the false tripping of the lights. It might be easier and cheaper to install.


I found I have to do that with some pet immune detectors in the house. They occasionally pick up a Cat. The burn in time for my system before I go to a Central Station was worht it especially since the local Police just put a system in place to fine people that have false alarms.
 
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