Wireless z-WAVE Siren for IQ2?

I saw this in a facebook group Qolsys& Alarm.com installers

I’m wondering what’s the best wireless or Z-Wave OUTDOOR sirens that will work with the IQ2+?

The IQ Panel 2 plus would be Power G compatible and there is a Power G wireless outdoor rated siren which might do the trick, though I am not 100% certain if the IQ Panel supports it currently. We’ll check with Qolsys and report back.

I don’t know of any outdoor rated Z-wave siren. Indoor models should not be used outdoors. I see the post you are referring to by the way, and both siren model numbers directly referenced in the post are Indoor-only models and should not be used outdoors (always check in the manuals if there is any question).

Just to confirm, the PG9911 is indeed compatible.