Simplex 4904-9053 I accidentally bought this particular unit not realizing I already had one. Oh well, happens. Brand Simplex
STI SS-2000F Category : OtherCan’t remember where exactly I put the key for this unit. It can still open with an allen wrench, but...
Grinnell RMS-1T Category : GrinnellI’m almost certain that this unit has an actual “Grinnell” model number, not just the standard RSG one, but it’s...