The Linear WA105DBZ-1 is a Z-Wave enabled combination Sounder/Strobe warning device, designed to alert intruders of a security system presence. Once paired with a compatible Z-Wave controller such as Nexia Home Intelligence, the sounder can be turned on and off remotely via the Z-Wave network. When on, the sounder emits a very loud 105 dB alert tone and the integrated strobe flashes brightly. The WA05DBZ-1 Sounder/Strobe is designed to be all-mounted, and comes with a UL-approved AC plug-in power supply and offers an integrated battery backup, in case of AC power interruption.