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Company American Signal Corporation
Produced ?-present
Type Electromechanical
Sound output 129 dBc at 100 feet
Frequency 500 Hz
Preceded by P-10 & P-15
Product sheet

The T-128 is an electromechanical siren produced by American Signal Corporation. It is one of four sirens in Tempest Siren Series line. This siren is wildly famous for it's low penetrating tone by the 8 port rotor. The design is super efficient and is known to be heard miles away, even though it's not rated to do so.