With over 20 years of accumulated laser sensing technology, Sifang Instrument has established a series of product layouts in methane leak monitoring products. At present, the methane leak detector of Sifang Instrument is being widely deployed in practical projects. The Gasboard-5302 has advantages such as high precision, low energy consumption, and strong environmental adaptability, and has explosion-proof and high protection levels. The product is equipped with an advanced optical sensing platform that can simultaneously measure multiple gases such as CH4, CO2, H2S, and CO. The independently developed laser can effectively avoid interference from other gases, water vapor, and dust. The system is equipped with high-performance probes and specially processed chambers, with a service life of up to 10 years and the ability to operate continuously and stably.