• 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