The seocnd one didn't work for me. It triggers alarm on Ewelink when smoke is gone... It doesn't trigger when there is a smoke... Can anybody have any idea ?! Itead team dont care, i asked them many times...
I am looking forward to installing my Sonoff RF bridge. But I'm still looking for a combustible natural gas (methane, butane etc) detector/alarm that would be compatible with the Sonoff.
Any confirmed recommendations would be warmly welcomed.