Looking for an outdoor siren

I’ve been looking to extend my home alarm with an outdoor siren that works on batteries for some time now. However, I can’t seem to find a proper one with good reviews. The solar one from Popp is pretty expensive and I also ready some bad reviews about it.

Do you have any suggestions for a decent outdoor siren which works on batteries?

Have the same need, but understood that in the current version of Zigbee implementation alarm devices are not working with Homey. The rewrite of zigbee (homey V5) should make these devices available (e.g. aqara water leak detector/alarm).
I resolved it in the mean time indoors with a mp3 alarm and Sonos speakers. Found no workaround for outdoors…

I’m currently using the same solution. A siren would be nice since it also shows possible thieves that our house has some kind of security.