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Rare old fire alarm pics from my college! - General Fire Alarm Media - The Fire Panel Forums
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Rare old fire alarm pics from my college! - General Fire Alarm Media - The Fire Panel Forums
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Got another old one for ya. This one is just smoke I think. : r/firealarms
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Simplex Heat Detector | Picture taken in Ottawa, Canada. | Flickr
Smoke detector - Wikipedia
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Simplex 4098-9776 Ssd Black Sensor Base
