Hi,
I know that in the shelly smoke should not be tested by open fire (according to the manual), but just out of curiosity I tried with couple of matches, and alarm does not activates, also on web interface smoke entity was always off, there was plenty of smoke near the sensor so I dont think so that there was not enough smoke to trigger the alarm.
So where could be an issue here? Has anyone tried to test them in real life, not only by button? I know that maybe I did not manage to produce lot of heat near the sensor, but smoke alone should be enough. Whats the point of the alarm if already all house is on fire?