*Alarm mode: voice alarm
*Alarm content: CO concentration is extremely high alarm
*Alarm memory: CO concentration peak memory storage
*Networking mode:zigbee, wifi
*Concentration display:0~100%PPM
*Alarm sound:more than the
*Working voltage: DC3V, 1*CR123Alithium battery
*Working current: ≤ 10 µA monitoring, ≤ 100mA alarm
*working environment:- 10℃ ～ 50℃，< 95%RH
*Dimensions：φ 65*29mm