H308 methane sensor adopts self-developed laser and photodetector core devices, combined with stable temperature control algorithms, concentration inversion algorithms and temperature compensation algorithms to achieve accurate measurement of methane concentration; the product is based on Tunable Diode Laser Absorption Spectroscopy
(TD-LAS) technology, the internal structure of the light path is simple and reliable, and it can be used as the core device of the combustible gas detector products, which is mainly used in home kitchen scenes.
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Product Features |
 Strong anti-interference. Methane "fingerprint spectrum" absorption detection technology, resistant to interference such as water vapor and poisoning.
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 High detection accuracy. Designed with direct wavelength modulation technology, the resolution can reach 0.01% VOL.
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 Low cost of use. Factory calibration free, with a service life of over 10 years.
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Product Performance Technical Indicators |
| Category | Parameter | Technical Specification | |
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Measurement Parameters |
Measuring Gas |
Methane |
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Detection Principle |
TD-LAS |
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Detection Method |
Diffusion |
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Measuring Range |
0-100%LEL |
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Measurement Error |
±3%LEL |
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Response Time |
T₉₀<20s |
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Operation Parameters |
Working Voltage |
3.0VDC~3.6VDC |
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Power Consumption |
Normal Temperature<300 mW，High and Low Temperature<550mW |
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Output Mode |
Standard TTL Serial Port |
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Work Temperature |
-10℃~+55℃ |
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Working Humidity |
0~95%RH(Non Condensing) |
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Weight&Dimension |
Weight |
20g |
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Dimension |
79mm×20.4mm×13.6mm |
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Product Application Scenarios |
As the core component of gas leak detection, this product is mainly used for gas leak detectors in household scenarios.
