Federal Signal’s Model 2 outdoor warning siren is an omni-directional siren capable of producing intense warning signals over a large area. The siren can be installed on a roof or utility pole.

Federal Signal’s Model 2 is a single tone siren capable of producing 102 dBc @ 100' while making only moderate power source demands. The Model 2 has a universal motor which operates from either 120VAC/DC or 240VAC/DC.  A Federal Signal Model RC2W motor starter (purchased separately) is required to operate this siren.

Federal Signal’s Model 2 can serve as an outdoor plant-wide warning system where volume is needed to contrast with high ambient industrial sounds. It is ideal for use in the large, wide open areas found in industrial facilities such as refineries, steel mills and manufacturing plants. The Model 2 can be used for start/stop work signaling, plant evacuation or other emergency situations.


Voltage 120VAC/VDC
Decibel Output 102dBc at 100 Feet
Output Frequency 533Hz
Beam Width 360º
Mount Roof (standard)
Pole (model PMS required)
Recommended Mounting Height 35.000 in
Tones 1 Standard
Effective Range @ 70dBc 1,000 ft
Power Rating 2 HP
Power Requirements 120VAC/VDC (24A, single phase)
240VAC/VDC (12A, single phase)
Height 25.000 in
Diameter 19.630 in
Net Weight 59 lb
Shipping Weight 85 lb


Product Literature

Ordering Information

Model Types
Model Description UPC
2-120 Siren, 120VAC 78297925510
2-240 Siren, 240VAC 78297925520
Replacement Parts
Description Part Number
HOLDER,BRUSH VDR # 840-0 Q8247A021