sp7dpt

Other sensors in Home assistant have a battery attribute. For example, the Zigbee motion sensor  I have automation that polls all battery-powered sensors and sends notifications about low...

It seems to be a standard. See the integration that shows the battery status https://github.com/maxwroc/battery-state-card It is based on the battery attribute and my automation too.

OK, maybe that's a bad example. I just wanted to show you that the sensors have duplicate values. I do not know why. Another example of an Aqara sensor 

> Hi, I got a formentor and for me it is working. Remember to change the update interval to 600 Why we must change update interval to 600, default is...

ok, thanks for info

I also have this problem when launching Home Assistant. The sensor is not loading data. Typing async with async_timeout.timeout (30) for me solves this problem.