Power supply: DC2*1.5V LR6
CO Sensitivity: 50ppm: 60-90 mins; 100ppm:10-40 mins; 300ppm<30 mins.
Alarm Sensitivity:0.09-0.17db/m
Opertion Current: <45uA (standby);<50mA(Alarm)
Sound intensity;>85 dB at 3 meters
Wireless Type: 2.4GHz
WiFi distance: 45m