Key specifications/special features
* Working voltage: DC 9V
* Standby current: ≤50uA
* Alarm current: ≤50mA
* Alarm density:
30ppm, alarms within 120 minutes
50ppm, alarms within 60-90 minutes
100ppm, alarms within 10-40 minutes
300ppm, alarms within 3 minutes

* Sensor: electrochemistry carbon monoxide sensor
* 3-year warranty for the CO-sensing unit
* LCD display sensor fault function yellow LED light
* Alarm sound: ﹥85dB (3m)
* Temperature: 0℃ to 50℃
* Humidity: 10%-90%RH
* Dimension: 124*35mm