The Beauregard A. Brady Elementary School, which fits 800 students is set up like this.
The hallway alarms in the school are Space Age Electronics VA4 horn/strobes set to continuous. All of them sound slightly different in some way.
There is one Faraday 6120 with the strobe on the front in the computer lab.
The Media Center has one Honeywell SC807A1029 on continuous also.
The playroom on the other hand has a Simplex 9833 behind a 2903 light plate with the light at the top on continuous but the light blinks.
The ELL classroom has a Wheelock MT4 on Code-3 horn.
The gym hall was all Integrities also on Code-3.