this post was submitted on 29 Jul 2023
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Learned my lesson after a trip last week... I have sensors for nearly everything, but somehow totally forgot about the Fridge / Freezer.

A power outage made my fridge lose it's mind and turn off cooling, even after it powered back up. Unplug / replug seems to have fixed it, but all the food was spoiled when we got home. Simple $10 temperature sensor could have saved everything!

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[–] xtremeownage@lemmyonline.com 4 points 1 year ago

https://xtremeownage.com/2022/06/29/433mhz-fridge-freezer-monitoring/

433 mhz sensors work nicely. If, my fridge/freezer / other freezer gets too hot, I get push messages.

Backup wan connection and a LOT of battery runtime ensures I will know.