My school’s hallways, larger classrooms, and I think bathrooms (tend not to use them much) have 4903-9219s (with the occasional 30cd or synchronized variant, TrueAlert retro-fit, or synchronized remote strobe), whereas the smaller classrooms have Simplex 4904-9137’s or the synchronized variant.
That is odd, but one of my elementary schools that had an old Simplex fire alarm system with mechanical horns on an incandescent light plates also had audibles in the restrooms.
As I said, my school is the same.
We have large bathrooms, so an H/S in it (especially a modern one) makes sense. In normal-sized classrooms, there are only remote strobes.
I hate when female teachers used to walk into the boys’ restroom. That shouldn’t be allowed. So where is the toilet paper at? Are the other restrooms at your school the same way?