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!
I have a Sonoff S31 on my fridge for about 3 years now for power monitoing and have had no issues. I’m sure the fact I don’t switch it on and off and it’s locked to stay on on power up helps prolong it’s life. If you never switch the load I don’t see how it’s life could be impacted. But I do have a temp sensor on the fridge so any failures I would be alerted to.