Domoticz

I am in a country where getting zwave stuff is hard, this is what is available for me Devolo 9677 Wireless siren Indoor is it compatible with domotics ( i did not see it in the wiki compatiblity list ).

Not sure if that one is compatible, but you could possibly use a normal wired siren, and a zwave relay to turn it on and off.

Yes that is an amazing idea, but i wanted multiple sounds, one for small events and alarm siren for big problems still neat idea.