SD-10

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SD-10
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SD-10 in Mechanicsburg, Pennsylvania.
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Company Federal Signal Corporation
Type Electromechanical
Sound output 109[1]
Documentation Manual

The SD-10 was an outdoor warning siren produced by the Federal Signal Corporation. The model number stood for Special Dual Tone, 10 Horsepower.[citation needed] The siren itself is essentially identical to a Model 5T except for the housing.

References

  1. (PDF) Service Manual, Outdoor Warning Sirens, Models 2, 5, SD10, STH10, STL10. Federal Signal Corporation. Retrieved June 2, 2014.