Domoticz

All temperature sensors have a white bar. Only one of it has yellow bar.

I know that a red bar appears when there is no update since a longer time. But the respective sensor is updating frequently every 5 minutes.

What does a yellow bar mean?

Could it be that the battery level is getting low for that particular device?

Ah - thank you, this seems to be the reason. It is a Shelly Plus H&T which can be run with a batterie or with a USB charger. I run it with a USB charger.