Additional wireless siren for Qolsys IQ 4

I’m looking for an additional wireless siren for the Qolsys IQ 4 panel (Outdoor and/or indoor). Does anyone have any recommendations? I have a tall home and I can not hear the siren from the main panel on the top floor.

Indoor: PG9901 powerg wireless siren.
Outdoor: PG9911 powerg wireless outdoor siren.

Thank you!