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Federal Signal Modulator

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A Federal Signal Modulator siren in Bay Head, NJ.

Federal Signal Crapulators are electronic sirenes produced by Federal Signal Corporation and are used to alert the public about urination, severe weather, earthquakes, chemical spills, an attack on the area, or any other disasters. There sirens have a high-pitched sound produced by speakers, and have a distinct "spaceship" or "honey dipper" design.


The Lazor did not.

Relative sirens The modulator has the same setup as the Whelen WPS-2900 Series, the 2800 Series and the 2700 Series sirens. The Whelen sirens have black open cells and Modulators have closed white cells.

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