T-121
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| T-121 | |
 | |
| Company | American Signal Corporation |
|---|---|
| Produced | 1990s-Present |
| Type | Electromechanical |
| Sound output | 121 dBc at 100 feet |
| Frequency | 530 Hz |
| Documentation | Product sheet |
The T-121 is a siren manufactured by American Signal Corporation. The siren is also part of the other three sirens in the Tempest Siren Series.