Power loss and avoiding a cascade of alerts?

Devices & Integrations
1

I have a v2 hub on a UPS. We have a whole-house generator. It takes about 40 seconds between loss of utility power to the generator coming online. This leaves no power to a number of places where a sensor might be connected. I’m wondering is there any part of the framework that would allow for having a “power lost” mode?

My goal, of course, is to have as much as possible configured with it’s own batteries or be in some way connected to a UPS. But barring that, what’s the best plan?

2

No idea what the best plan is, but the first thing that occurred to me was to have something that is not on backup, which, when power is interrupted causes a sensor that IS on backup power/battery to trip, and have that sensor trigger a power lost mode.

Maybe a small electromagnet and an open/close sensor?

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