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by kevinschumacher 2343 days ago
Could that be coming from the smart home device manufacturer noticing the device was abruptly disconnected?
2 comments

The device itself is a Nest Protect fire alarm connected to 120VAC. It has a built in battery back up.
It could be, but it is probably just they have enough backup power to send the signal.
It's more likely that the device sends a heartbeat every minute or so, either for notifications or just for this "device is offline" feature.
In this case, no.