2001SRNB
| 2001SRNB | |
| |
| Company | Federal Signal Corporation |
|---|---|
| Produced | 2002-2006 |
| Type | Electromechanical |
| Sound output | 128 dBc at 100 feet |
| Preceded by | 2001SRN |
| Succeeded by | 2001-130 |
The 2001SRNB was the second generation of Federal Signal's 2001 series. The design is similar to its predecessor, the 2001SRN, with the most important change being a refined stator design, increasing the sound output to 128 dBc at 100 feet. Secondly, a new gear-driven rotator replaced the belt-driven rotator originally inherited from the Thunderbolt.