Parameter

Measuring range

CO: ( 0~1000) ppm;
O2: （0~30.0）%vol、（0~100）%vol

Measurement error

CO: ( 0~20 )ppm: ±2ppm; ( 20~100 )ppm: ±4ppm
( 100~ 500)ppm: true value±5%; （500~1000ppm：true value±6%
O2: ( 0.0~5.0 ) %vol: ±0.5%vol; ( > 5.0 ) %vol: full range ±3%

Resolution ratio

CO:? 1ppm;
O2:? 0.1%vol

Display

Liquid crystal display（LCD）display

Response time

CO: ≤45s (T90);?
O2: ≤35s(T90)

Alarm sound intensity

≥75dB

Alarm light

≥20M visible

Alarm point

can be set ?in full proceed (factory setting 24ppm)

Alarm way

Sound, light

Continuous working time

＞3 months ( without backlight)

Sensor lifetime

≥2 year

Working current

< 1mA ( without backlight)

Battery model

PL123450

Charging time

4-5 hours

Protection degree

IP54