RSH-10

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RSH-10
Company Federal Signal Corporation
Type Electromechanical
Sound output 128 dBc at 100 feet
Succeeded by 2001SRN


The RSH-10, also known as the Thunderbeam, was a rotating electromechanical siren produced by Federal Signal. Its unusual design consists of a hornless STH-10 mounted at the top with a slanted disc in a cage below. The housing directs sound downward from the rotor and stator, onto the disc. The disc is rotated using a gear reduction off of the rotor shaft, directing the sound in different directions.

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