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.
OS-365A Outdoor siren
The OS-365A is a hard-wired outdoor backed-up siren combining a loud acoustic sirenn with a flashing light. The high-powered flashing light helps to locate the active siren.