The siren will warn everybody in the building by a loud sound and a flashing light about an alarm. This product is especially suited for security applications in combination with other Z-Wave devices such as door or windows sensors or motion detectors. The siren gives a loud sound and a flashing warning light, so that everybody in the building will know immediately that an alarm has occurred. The device can be configured to either use the strobe flash or the acoustic siren or both. A tamper switch protects the device from removal or manipulation if used in security applications. The device is battery powered by 4 AA standard batteries.