Fenwal PSD-7155

This particular unit is lacking a base.

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Aames SP-I

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This alarm is essentially a poorly designed Simplex tbar, such as the Simplex 2099-9754. It is also the only T-Bar...
Faraday 5940

Faraday 5940

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You can see straight through the grille on this horn to the metal plate on the mechanism.
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