I have one of the Aeon Labs doorway sensors and it went through 3 batteries in a few months. For this reason, it sits in a box of other junk. 
Oh, and all of the issues the original poster has, I had too. I was really not impressed.
In my case, I was trying to use it in an application where the door was open more than closed, so perhaps that is why I also had a battery life issue. Maybe it doesn't go to sleep properly if the contact is open. Does anyone know for sure?

Oh, and all of the issues the original poster has, I had too. I was really not impressed.
In my case, I was trying to use it in an application where the door was open more than closed, so perhaps that is why I also had a battery life issue. Maybe it doesn't go to sleep properly if the contact is open. Does anyone know for sure?
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