27/07/2025, 16:20 MH-Z9041A TDLAS Laser Methane(CH4) Sensor

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 MH-Z9041A TDLAS LASER METHANE(CH4) SENSOR

MH-Z9041A TDLAS Laser

Methane(CH4) Sensor

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27/07/2025, 16:20 MH-Z9041A TDLAS Laser Methane(CH4) Sensor

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Target: Methane CH4

Model: MH-Z9041A

Detection range: 3-100%LEL (can be customized)

Detection principle: TDLAS

Resistance to water vapor, no poisoning,

Characteristics: Response to CH4 gas only, no response to
other gases

Size: 76.5mmX21mmX14.1mm

Output signal: Serial port (UART) (TTL level 3.0V)

Response time: T90< 15s

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Description
MH-Z9041A laser CH4 gas sensor (hereinafter referred to as the sensor) is
a domestic methane sensor, based on tunable laser gas absorption
technology (TDLAS) technology to detect methane gas, internal use of
cross-beam light path structure, with excellent gas selectivity, no oxygen
dependence, water vapor resistance. Anti-poisoning, long life, etc. Built-in
temperature control algorithm, temperature compensation algorithm, to
achieve accurate measurement of methane gas; With serial port output
interface, easy to use. The sensor is a high performance sensor which
combines mature laser gas absorption detection technology with stable
optical path design and circuit design.

Application
Methane gas alarm for home use

Features
Resistance to water vapor, no poisoning
Response to CH4 gas only, no response to other gases
No need calibration, long lifespan
High accuracy, resolution can reach 0.1%LEL
UART output way

Specifications

Model No. MH-Z9041A

Detection Gas Methane CH4

Power supply DC (3.2-3.6) V

Working current <300mA

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27/07/2025, 16:20 MH-Z9041A TDLAS Laser Methane(CH4) Sensor

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Interface level 3.0V
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Detection Range 3-100%LEL (can be customized)

Detection Accuracy ±3%LEL @25℃

Output signal Serial port (UART) (TTL level 3.0V)

Warm-up time 15s

Response time T90< 15s

-13~58℃① 0-95%RH(no
Working conditions
condensation) 80kpa~116kpa

Storage temperature -20~60℃

Size 76.5mmX21mmX14.1mm

Weight < 20g

Life > 10 years

Detection range and accuracy

Gas chemical Detection

Resolution Accuracy
Name formula Range

3-50.00%LEL: ±
3- (3%LEL)@25℃
Methane CH4 0.1%LEL
50.00%LEL >50.00%LEL:±
(5%LEL)@25℃

3-
Methane CH4 0.1%LEL ±(3%LEL)@25℃
100.00%LEL

* The description and specifications might be changed without notice.

Please contact us for the latest information before placing orders.

Technical Support:
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27/07/2025, 16:20 MH-Z9041A TDLAS Laser Methane(CH4) Sensor

1- Do you accept Customized Products? Shop Online  +

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2- Is there Sleeping Mode for the sensors？ +

3- How do you guarantee the products quality before outgoing?? +

4- Are the sensors calibrated before outgoing? +

5- What’s the influence of temperature and humidity on sensor

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performance and life？

6- What are the certificates that Winsen sensors have been

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7- What's wrong with the sensor failing to respond? +

Winsen provides professional consultation and service before and after

sales. We will recommend the best fitting sensor for your demand. If you
have any problem, don’t hesitate to email us to sales@winsensor.com

Due to high volume of daily incoming emails and time zone difference,
we may not be able to reply your emails immediately. But we will reply to
your inquiry in 24 business hours.

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