Potter OSYSU-A2

I honestly have no idea what this thing is, but it says Potter on it, so that means it goes on the website.

Also in the collection
Grinnell RMS-1T

Grinnell RMS-1T

Category :
I’m almost certain that this unit has an actual “Grinnell” model number, not just the standard RSG one, but it’s...
GE 521BXT

GE 521BXT

Category :
I think that this smoke detector might be intended for use in security systems.
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