Aeotec Siren Gen5, Z-Wave Plus, 105dB Siren with Strobe alerts, Plug-in, Backup Battery Z-Wave emergency siren powerfully loud at 105dB with 210 lumen strobe light alerts. Siren has to immediately alert you to emergencies and safety problems. So that you always hear it, it has a high-intensity, 105dB speaker built right in. Tamper and power out protection with inbuilt, self-recharging, 430 mAh backup battery. Compatible with certified Z-Wave gateways and software including Fibaro, HomeSeer, Indigo, openHAB, Piper, Samsung SmartThings, Vera, and Wink. Z-Wave Plus certified. Certification number: ZC10-14090012.