Ikea alpstuga air quality sensor

Apropos. My Alpstuge can be offline without me knowing.

I was warned because I saw on the device itselve that the clock was incorrect.

That is a real problem. Being offline, not responsive, while Smartthings app or Samsung Advanced” say online.

AWAY from 12:23 till 19:16

main fineDustHealthConcern fineDustHealthConcern good 6 Mar 2026 19:16
main fineDustHealthConcern supportedFineDustValues unhealthy 6 Mar 2026, 12:23

Then I unplugged it and brought to an other location. Much closer to the hub. And ,when unplugged, ST hub gave offline, which is ok, and now online.

Apropos. There is a Zwave plug there which never went offline, even behind a steel door.

So replacing my Zwaves, which I intend to do, may take some research. I will need hubs or plugs in between. No way for long distances.