OS-350 Siren

The OS-350 is an outdoor non-backup siren combining a loud acoustic siren with a flashing light. The flashing light helps to locate the active siren. Optional piezo-electric siren (ACM-OS360).


OS-350 Siren

The siren’s housing is made of mechanical, weather and UV resistant plastic. The electronic circuit board is protected against air humidity by double-layer varnish. The device is protected by two magnetic tamper switches. If higher security is demanded, we recommend using the OS-360 or the OS-365 backup outdoor siren.


Power supply 10 to 17 V DC
Consumption 250 mA / 12 V
Siren piezo-electric, 112 dB /1 m
With second piezo-electic siren (ACM-OS360) 116 dB /1 m
Enclosure IP 34D
Security grade 2 EN 50131-1, EN 50131-4
Environmental class IV -25 to +60°C
Dimensions 230 x 158 x 75 mm
EMC EN 50130-4, EN 55022
Safety EN 60950-1