Horns that are in this video?

General Fire Alarm Media
1


i know that they are simplex but i cant see them clearly at all

2

Simplex 2901-9525 AC horn in the first part. The rest are probably 4050/4040s. As for the horn at the end, I ain’t sure.

3

Definitely vintage simplex AC horns. The other horns sound like TrueAlerts.