4 gases in 1 detector CO O2 H2S LEL handheld multi gas detector Quality Choice

Operating & Storage Environment

Temperature: -20°C~55°C (-4F~122F)

Humidity: 5%-95% (Relative humidity non-condensing)

Pressure: 95~110kPa

Alarm Threshold (Two-stage)

There may be regional variations, users can set up the value based on the practical situation.

Detecting Range

CO: 0~999 PPM

H2S:0~100 PPM

O2: 0~30%vol

Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL

Sensor

O2 /H2S / CO: plug-in electrochemical sensor

Combustible gas (LEL): plug-in catalytic combustion sensor

Alarm Type

low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm

Acoustic Alarm

Variable-frequency pulse alarm which can reach volume of 95dB in a distance of 1 foot (0.3 meters)

Visual Alarm

Two red LBD omnibearing visible glitter alarm

Vibration Alarm

Pulsant signals alert the gas alarm or any other alarm status

Display

Alphanumeric large LCD displays the real time gas concentration and alarm stage

Backlight

Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.

Self-checking Function

Self-checking after start up.

Calibration Function

Automatic zero point calibration ;

Automatic measurement range calibration.

Power Supply

Rechargeable lithium battery

Weight

211g

Dimensions

126mm*66mm*33mm

Gas Type

H2S

CO

O2

Ex (LEL/CH4)

Detecting Range

0~100 PPM

0~999 PPM

0~30.0%VOL

0~100%LEL

Low Alarm Point

10 PPM

35 PPM

18.5%VOL

25%LEL

High Alarm Point

20 PPM

70 PPM

23.5%VOL

50%LEL