Questions about Sellafield's Alarms

[HudsonRiverSirens]

Quick update, I asked one last time about finding out the model of the alarms, and Sellafield replied saying
"Morning Sherwyn,
I will try and find out and come back to you."

With a bit of luck, we might be onto something.

If you scroll up I found videos of them. They’re Hormanns or something very, very similar.

Yeah, I saw about the Hormanns and researched them. They are definitely used for the criticality alarm. However, the ones I'm searching for are used for the Emergency alarm, that sound much more horn-esque. They can be heard at 1:05 in the below video:
https://youtu.be/olEy-_OHvfI?t=65

Thank you though!

Are you sure it isn't just a recording that they play over the speakers?