Technical specification

 Parameter

Detecting gas

CH4/LEL, CO, O2, H2S

CH4

Measurement range

(0.00—5.00)%Vol

Measurement error

( 0.00~1.00 ) %CH4:±0.10% CH4 ( 1.00~3.00 ) %CH4:true value ±10%

( 3.00~4.00 ) %CH4:±0.30%CH4

Respond time

≤20S ( T90 )

Resolution

0.01%vol

Alarm point

1.00%vol(can be adjusted in whole range)

LEL

Measurement range

( 0 ~ 100 ) %LEL

Measurement error

( 1 ~ 20 )LEL:±2%LEL

( 60 ~ 100 ) %LEL:±6%LEL

( 20 ~ 60 ) %LEL:true value±2%

Respond time

≤20S ( T90 )

Resolution

1%LEL

Alarm point

20%LEL(can be adjusted in whole range)

CO

Measurement range

( 0~1000 )ppm

Measurement error

( 0~20 ) ppm:±2ppm ( >20~100 )ppm:±4ppm

(> 100~500 )ppm:true value±5% ( >500~1000) %ppm:true value±6%

Respond time

≤45S ( T90 )

Resolution

1ppm

Alarm point

24ppm (can be adjusted in whole range)

O2

Measurement range

(0.0 ~ 30.0)%vol

Measurement error

( 0.0~5.0 ) %vol:±0.5%vol ( >5.0~30.0 )%vol:0.9%vol

Respond time

≤35S ( T90 )

Resolution

0.1%vol

Low Alarm point

18.0%vol(can be adjusted in whole range)

High alarm point

25.0%vol(can be adjusted in whole range)

H2S

Measurement range

( 0 ~ 100 )ppm

Measurement error

( 0~50 ) ppm:±3ppm (> 50~100 )ppm:True value±10%

Respond time

≤45S ( T90 )

Resolution

1ppm

Alarm point

10ppm(can be adjusted in whole range)

Alarm sound intensity

80dB

Alarm way

Sound, light alarm

Alarm indicator light

Can be visible in the distance of not less 20m

Sensor life

≥2year( CO, O2, H2S ) ≥1year( LEL,CH4 )

Working current

95mA

Continuous operating hours

≥12hours

Battery item

PL123450 3.7V/1500mA

Battery short circuit current

2A

Charging time

4-5hours

Protection level

IP54

Working temperature

-25°C~55°C;  short time for -40°C~55°C

Size

130×66×30 (mm)