- Power requirement: 9V battery
- Static current: Less than 50uA
- Alarm concentration:
- concentration 30ppm: make alarm in 120 minutes
- concentration 50ppm: make alarm between 60 to 90minutes
- Concentration 100ppm: alarm between 10 to 40minutes
- concentration 300ppm: alarm within 3 minutes
- Alarm current: less than 50mA
- High brightness light emitting diode
- Standy: flash per 50s;
- Alarm: fast flash
- Loud high-volume buzzer output: 85dB within 3m