ZigBee Wireless Siren

It connect with other devices in smart home, when devices status change, it will generate 100dB alarm sound to warn the users, also threat the intruders. 1.Up to 100dB high sound pressure; 2.Sound pressure is adjustable; 3.Built-in rechargable lithium battery; 4. On-site alarm; 5.Low battery indication; 6.Timely status reports.