I have a home kegerator system, and one of the biggest pains about it is even though it is relatively high-end, the thermostat sucks. CO2 dispensed beer is very temperature sensitive and even a variation of a few degrees off target can cause you to get a pour of 90% foam.
I wasted nearly an entire 200 dollar keg making little adjustments to the crap analog dial thermostat only to have it make unpredictable vast swings in one direction or another. There are of course bulky upgrade systems you can retro fit, but they require drilling into your 1,200 dollar + kegerator, and are overly complicated.
I wonder if a combination of the temperature sensor, and the smart outlet could be a solution to this problem. The outlet could cut and restore power based off the readings of the temperature sensor. It could also send alerts if the temperature gets off target and it is unable to bring it back.
This would require the temperature sensor to be accurate though, within a degree or two, and it may need some kind of “learning” logic on when it should turn the system back on to maintain the temperature it’s currently at.