INDUSTRIAL SCIENTIFIC M40 Gas Detector LEL/H2S/CO/O2
INDUSTRIAL SCIENTIFIC M40 Diffusion type four-in-one Gas Detector can measure carbon monoxide, hydrogen sulfide, oxygen, combustible gas four kinds of gas concentration, using electrochemistry and catalytic combustion principle, M40 shell has impact resistance and anti-radio frequency interference.
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Features
The Insco M40 Gas Detector can measure 4 gases at the same time: carbon monoxide, hydrogen sulfide, oxygen, and flammability.
Extra-large LCD display screen
75 hours of data logging
50 feet remote sampling.
The M40 Gas Detector housing is made of high-strength impact-resistant composite materials, which can be used in all kinds of harsh environments, and the housing is subject to electromagnetic interference and radio frequency interference.
Intuitive event operation and calibration of the instrument
Five-second automatic shutdown function to prevent accidental shutdown
The compact form factor and affordable price make it the perfect choice for personal Testers
In addition to this, the instrument also has a vibration alarm, lithium-ion charging, battery peak reading, large LCD screen display, 75 hours of data recording, and an optional gas sampling pump can achieve long-distance sampling sampling distances of up to 50 feet.
Product Structure

INDUSTRIAL SCIENTIFIC M40(LEL/H2S/CO/O2) Gas DetectorSpecifications
| LIST | VALUE |
|---|---|
| Sensors principle | Electrochemistry, catalytic combustion |
| CO range | 0~999ppm |
| CO resolution | 1ppm |
| H2S range | 0~500ppm |
| H2S resolution | 1ppm |
| O2 range | 0~30%Vol |
| O2 resolution | 0.1% |
| EX range | 0~100%LEL |
| EX resolution | 1% |
| Shell material | High Strength, Impact Composite, Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) Resistant |
| Dimension | 109*62.2*34.8mm |
| Operating temperature | -20~50℃ |
| Relative Humidity | 15 to 95% RH (conventional), 0 to 99% RH (intermittent) (non-condensing) |
| Display | Backlit liquid crystal display (LCD) |
| Power Supply | lithium battery |
| Operating Time | 18h |
| Alarm mode | Vibration alarm, 90 dB audible alarm (30cm from sound source) and super bright indicator visual alarm. High/low concentration alarm, short exposure limit (STEL), time Weighted average (TWA) alarm and low battery level alarm. Flow rate alarm indicator is also available. |
| Weight | 244g |
| certification | China Measurement (CMC) and Explosion Proof Certification |
| Protection level | IP65 |
| Data Logging | Up to 75 hours of data can be recorded |
| Sampling method | diffusion |
INDUSTRIAL SCIENTIFIC M40(LEL/H2S/CO/O2) Gas Detector Packing list
Gas detector X1, manual X1, Encasement box X1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- Principle and Application Analysis of Composite Four-in-One Gas Detector
- Gas detection Common detection items/detection methods and testing standards
- What is a CO2 Gas Detector and how does it work?
- Principle of Catalytic Diffusion Sensors
- Which Gas Detector Sensors are suitable for use in mining?
- What is the difference between stationary and portable Gas Detectors?
- How to choose the right Gas detection solution?
- Where is a good place to place a carbon monoxide Detector?
- In what environment do you need to wear a hydrogen sulfide H2S gas monitor?
- How Long Can Electrochemistry Gas Sensors Last?


M40(LEL/H2S/CO/O2)





