Model 2
| Model 2 | |
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 | |
| Company | Federal Signal Corporation |
|---|---|
| Produced | 1917-present |
| Type | Electromechanical |
| Sound output | 102/100 |
| 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. There was also a version called the 2T which had a rating of 100 decibels at 100 feet.