Technical Parameters:
Power: 3* AA batteries;
Monitor current: <35uA (can work for more than one year);
Alarm current: 20mA or so;
Alarm concentration: 50 (± 30%) ppm Carbon monoxide gas
Low Voltage Warning Threshold Voltage: 3V ± 0.3 V;
Use of the environment: Temperature: 0 ℃ ~ 45 ℃, relative humidity: 20% to 95% without condensation;
Alarm sound: 3 meters ahead is greater than 85 dB