2T22 and 3T22

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2T22 and 3T22
Company Federal Signal Corporation
Sound output 113 dBc at 100 feet


The 2T22 was an omnidirectional siren produced by Federal Signal Corporation. The design features a single motor in the middle with a twelve-port rotor/stator set on top and a 10-port set on bottom. A similar model featuring coding dampers was sold as the 3T22