Qolsys IQ Siren
Wireless Z-Wave siren with a rechargeable backup battery.
The IQ Siren is the perfect way to make your home even LOUDER when the alarm goes off. Completely wireless it plus into any standard outlet and even includes 3 LED lights that strobe during alarm events. Acting as a Z-Wave repeater, it strengthens and improves your smarthome network improving the performance of all your devices.