DFRobot Gravity Laser Quantitative Methane Sensor
DFRobot Gravity Laser Quantitative Methane Sensor is a factory-calibrated laser lab-grade quantitative CH4 detector for academic research. This sensor offers advanced TDLAS technology for interference-proof methane (CH4) detection, with precise data output in %LEL (Lower Explosive Limit). The Gravity laser quantitative methane sensor supports zero cross-gas interference, ensuring trustworthy data from complex environments where gases such as CO2 will not compromise methane readings. This sensor features 2% LEL accuracy and 1-click data export to analysis-ready files for Excel or MATLAB, eliminating the need for coding or soldering. Typical applications include environmental engineering, chemistry and chemical engineering, environmental science, and materials science.
The Gravity Laser Quantitative Methane Sensor is designed for plug-and-play compatibility with Arduino and Raspberry Pi. This setup can be deployed in under 10 minutes without soldering or debugging UART codes, freeing researchers to focus on their core work. The methane sensor features timed data-logging that reliably supports long-duration experiments by automatically saving data even if the connected computer enters sleep mode.
Features
- High measurement accuracy with pre-delivery factory calibration
- Low cross-sensitivity and exclusively sensitive to methane
- >10 years extended service life
- 2% LEL accuracy
- 1-click Excel or MATLAB export
- TDLAS technology
Applications
- Environmental engineering:
- Continuously track real-time methane (CH4) production from anaerobic digesters, biogas upgraders, and landfill sites, with high accuracy even in the presence of interfering gases like CO2 and H2S
- Chemistry and chemical engineering:
- Precisely evaluate catalyst performance and reaction kinetics by selectively measuring methane conversion without interference from other process gases
- Environmental Science:
- Measure methane fluxes from natural and agricultural sources (wetlands, rice paddies, soil, and permafrost), ideal for long-term and unattended fieldwork thanks to its high stability and automated data logging
- Materials Science:
- Gas adsorption and separation research: precisely quantify gas uptake and determine breakthrough curves for novel adsorbent materials (MOFs, zeolites, or activated carbons)
Specifications
- Methane (CH4) detection gas
- 3% to 100% LEL detection range
- 15s warm-up time
- T90 <15s response time
- 0.1% LEL resolution
- 80kPa to 115kPa operating pressure
- Accuracy:
- ±2% LEL at 5% to 20% LEL range at 25°C
- ±3% LEL at 20% to 75% LEL range at 25°C
- ±5% LEL at 75% to 100% LEL range at 25°C
- -13°C to 58°C operating temperature range
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