Order Model

CD4

Measured Gases

Methane (CH₄), Carbon Monoxide (CO)

Oxygen (O₂), Hydrogen Sulfide (H2S)

Measurement Principle

Catalytic combustion sensor (CH₄)

Electrochemical sensor (CO, O₂, H2S)

Measurement Method

Diffusion measurement method

Measurement Range

CH₄: 0~4.00%CH₄

O₂: 0~25.0%VOL

CO: 0~1000ppm

H2S: 0~100ppm

Measurement Accuracy

CH₄: ±10%, O₂: ±0.7%VOL

CO: ±5%, H2S: ±5%

Alarm Point Setting

Adjustable over full range

Battery Level Display Function

Real-time battery level display

Display and Sound/Light Alarm

Bright digital display, alarm sound level 80dB

Resolution

CH4: 0.01%CH4, O2: 0.1%VOL

CO: 1ppm, H2S: 1ppm

Continuous Operation Time on Full Charge

More than 12 hours

Power Supply

3.6V rechargeable lithium battery

Temperature /Humidity

0~40℃/≤98%

Dimensions /Weight

105(L)×56(W)×28(H)mm/250g

Explosion-Proof Type

ibdI(150℃) Shock-resistant anti-static ABS casing

Standard Configuration

Main unit, charger, leather case, instruction manual, certificate of conformity, warranty card

Automatic zeroing and calibration

Backlight display