ZIGBEE USB Siren Alarm Sensor

● Trigger alarm; Make sound and light;Remote on/off via APP
● Automatically restore the previous settings with memory function when network or power off reconnecting
● Battery: CR123A*2-3V（Delivered without batteries）
● USB Power supply: 5V/1A
● Volume: 90db
● Working Temperature: 0℃～ 40℃ (32°F～104°F)
● Working humidity: 20% ～ 85%
● Wireless frequency: 2.4GHz
● Network range: 40M
● Wireless protocol : Zigbee 3.0 IEEE 802.15.4
● Size: 68mm x 68mm x 33mm