I've had Alexa, (Studio and two echos) for over a year now. In that time, Guard has NEVER once detected my smoke alarm beep, doors closing, foot steps and glass breakage. I know because I've tested these sounds many times when I've turned guard on to see if it would detect them. I do know it cycles lights on/off when on but that is it.
I could almost understand if it detected these sounds 90% of the time but, for me, 100% of the time it has not.
Have any of you had Guard (without subscription) detect any of these sounds and alert you?