Simplex 2904-9103

This unit is a light, not a strobe. I’m pretty sure that 2904-9103 is the correct model number.

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Notifier BNG-1R

Notifier BNG-1R

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This is the oldest Notifier pull that I own which opens with the modern Notifier key.
Simplex 4903-9219H

Simplex 4903-9219H

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This alarm is specially made for high-humidity situations such as swimming pools. That’s what the “H” in the model number...
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