I purchased several 2Gig Thin Door/Window Contacts last November, and I think one of them has gone faulty. I noticed that the announcement didn’t work when the door was opened, so I replaced the batteries. About two weeks after replacing the batteries, the announcement stopped again, which I replaced with new batteries again.
After replacing with new batteries, the announcements would resume and then become intermittent and finally not announcing all day. This is one of the main doors that we use.
I was thinking that cold weather could possibly affect the sensor? But it’s inside the house and we also have the same contacts in the garage which is colder.
Any suggestions on what to do would be greatly appreciated.