The Vintage Market Mercantile (Trenton)
A couple of First Alert SA67D and SA125C smoke detectors can be found, along with at least one or two other modern smoke detectors.
St. Justin Catholic Church (Hazel Park) - According to a cornerstone brick from Google Street View, the church and attached school opened in the late 1950s.
Panel/detectors:
Unknown, presumably National Time
Pull stations:
National Time 541-series single-action pull stations, some of which are mounted at non-ADA levels, presumably replacing the original pull stations.
Notification appliances:
The original devices consisted of National Time 411 horns, which are still mounted on the wall despite a modern system being in place.
The current devices consist of National Time C3/C4-series horn/strobes throughout.
National Time P806 and P810 bells (the latter of which are behind protective metal casings) are used for class change bells.
There is one red Faraday 4434 bell mounted on the ceiling in an academic hallway, presumably used as a trouble bell.
There is one unknown 2" bell with a transformer attached to it outside a classroom entrance. It is far distance from the P806 bells, but I don’t know if it’s used as a class change bell also or if it is used for something such as a door bell.