EOWS

EOWS series
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Company	Federal Signal Corporation
Produced	1983?-1995, 612 available on special order until at least 2005
Type	Electronic
Sound output	115-132
Succeeded by	Modulator

The EOWS series (Electronic Outdoor Warning Siren) was a line of electronic sirens produced by Federal Signal Corporation.

Models

There were a total of 6 models in the series.

Model	Image	Output	Drivers	Notes
EOWS*115		119 dBc	12 (1 per horn)	The earliest model in the series. Uncommon. Sound output is likely inaccurate regardless of documented rating. Output is likely 115 dBc.
EOWS*408		128 dBc	8 (2 per horn)	The smallest rotating siren in the series. Quite rare. Sound output rating is inaccurate in documentation. Actual output rating is unknown.
EOWS*612		124 dBc	12 (2 per horn)	The most popular model. Many active examples can still be found today.
EOWS*812		132 dBc	12 (2 per horn for bottom 4 horns and 1 per horn for top 4 horns)	The largest siren in the series. Rather uncommon. Sound output is likely inaccurate regardless of documented rating.
EOWS*1212		115 dBc	12 (one for each horn)	The successor to the 115.
EOWS*M12		123 dBc	?	Vehicular model. Decibel rating was measured at ten feet.

EOWS*115

The EOWS*115 was the earliest model produced. It is unique in the series in that it uses fiberglass re-entrant horns.

EOWS*M12

The EOWS*M12, or Mobile SiraTone, is a vehicle mounted model.