Thunderbolt

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The Thunderbolt siren was a supercharged electromechanical siren produced by Federal Electric, later Federal Sign & Signal and Federal Signal.

Thunderbolt 1000

The Thunderbolt 1000 is a Single-tone supercharged siren that is part of the Thunderbolt Siren series.

Thunderbolt 1000T

Thunderbolt 1003

The Thunderbolt 1003 uses two solenoids that are attached to the upper portion of the siren to create a third, high-low signal, which can be used as a fire signal.

Other models