Model 2
| Model 2 | |
 | |
| Company | Federal Signal Corporation |
|---|---|
| Produced | 1917-present |
| Type | Electromechanical |
| Sound output | 102 (Single Tone) 100 (Dual Tone)[1] dBc at 100 feet |
| Frequency | 533 (Single Tone) 533/427 (Dual Tone) [1] Hz |
| Horsepower | 2 |
| Documentation | Manual Product sheet |
The Model 2 is an omnidirectional siren produced by Federal Signal Corporation. It holds the record for the longest production run of any siren. This siren has a rating of 102 decibels at 100 feet. There was also a coded version produced in limited quantities. Although the Fedelcode name was used on many examples, most did not actually contain a coding mechanism.
Model 2T
During the Cold War Era, Federal Signal Corporation released a version of the Model 2 that was duel tone. The 2T had a rating of 100 decibels at 100 feet.
- ↑ 1.0 1.1 (PDF) Service Manual, Outdoor Warning Sirens, Models 2, 5, SD10, STH10, STL10. Federal Signal Corporation. Retrieved October 23, 2017.