This unit was designed to be a portable warning device mounted on top of a vehicle so warning signals and PA announcements could be made from multiple locations.

That is the only photo of the siren out there because it's from the catalog.
I want to know more about this siren, as the EOWS series is one of my favorite siren series.
Obviously since there is no footage, or actual photos of this unit and it just may have bit the dust just like the Alertronic 5000. But I want to know if there is any of them out there. Maybe in a dusty old shed or in a remote junkyard.
The reason this siren is so rare is most likely because it was just unnecessary and not needed for a lot of people so it wasn't a top seller. But that doesn't mean at least one or two weren't purchased.
If any of you know way more than me or even have evidence of this siren's existence please let me know.