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I replaced the battery in nest detect sensor in one room after I
received an alert that the battery was low. Three weeks later, on the
same sensor, I received the same message.
Maybe I am not describing this correctly because I already received a
reply that the batteries you mention are for the Nest Protect, not
Detect. I don't know what they are called but I am talking about the
small device on the door that detects motion...
