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Carbon dioxide
Power Supply: AC adapter 9V 200mA
Sensitivity Setting:±50ppm
Responding time: =30S
Warm up time:3minutes
Alarm Current: <100mA
Operation Ambient Condition: 0~60, 0~90%R.H.
Storage temperature: -20~60
Working life: 5years
Alarm sound : =85DB at 10cm
Hush function can be settled

Working indicate: 0~800PPM Green LED light
running
800~1200PPM Yellow LED light running
alarm beep every 3minutes
1200PPM over Red LED light runnin
alarm beep,beep every 3minutes