Refresh requests state of siren (on/off) and it shouldn't have a poll button.
It's part of the configuration capability and gets executed automatically after the device is added.
It should make a beep sound by turning the siren on and off quickly, but the siren is really unreliable so it doesn't work for all users.
On and off allow the device to be used like a switch in any app and they turn the siren on/off. Off should turn it off. Pushing the physical button on the bottom of the device will also turn it off.
Commands Siren, Strobe, and Both are part of the Alarm capability so they have to be there, but the device doesn't support just turning on the siren or strobe so all 3 commands turn on the siren and strobe.
Mute should prevent the siren from turning on and I believe it will also turn the siren off.
Unmute restores the normal state of the siren. I doubt the siren was muted immediately after joining it...
It should, but it isn't a hardware setting and this device is somewhat unreliable so there's no guarantee.
It seems like the weaker your mesh, the more unreliable the device is...
I'm not sure what you're asking.
FYI, the siren has 3 volume levels so you can always lower it so it's not blaring while testing it.