Pyrotronics ES0-24S

I have two of these alarms just because they’re so rare.

Also in the collection
GE 521BXT

GE 521BXT

Category :
I think that this smoke detector might be intended for use in security systems.
Wheelock ET-1080-WS-24

Wheelock ET-1080-WS-24

Category :
You can’t really tell from the pictures, but the strobe is practically falling out of this particular unit.
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