I have one of those little Xiaomi LCD temperature meters in the room as well. I actually have more than one LED on my device. It's in the opposite corner and p

I have one of those little Xiaomi LCD temperature meters in the room as well. I actually have more than one LED on my device. It's in the opposite corner and points to the air-conditioning unit that is fixed. In this scenario I can't ever recall it not working 100%. My automation is in nodered and I heat or cool the bedroom to 18C and turn the the unit off.