Wheelock MT4-24-LSM Category : Wheelock I believe that this is an early version of the MT series since it doesn’t have covers over the screw holes like later MT’s have. Brand WheelockModel MT4-24-LSMManufacturer WheelockType Alarm (Horn/Strobe)
Simplex 4903-9459 Category : SimplexThis unit is an addressable horn strobe. It’s what my elementary school had installed in the classrooms.
Silent Knight PS-SATK Category : Silent KnightThis pull station is just rebranded by Silent Knight. I also have the Simplex and Wheelock versions of this pull.
