The SAN-U Laser Methane Sensing Module is developed using Tunable Diode Laser Absorption Spectroscopy(TDLAS)technology,ensuring stable,reliable performance and an extended service life.Utilizing a 1653.7nm laser for precise methane gas detection,the module is resistant to interference from water vapor and other gases.Its folded optical path design ensures long absorption   paths.The module features strong corrosion resistance,high precision,fast response,and low power consumption,making it suitable for use in various complex environments.It is widely  applied  in methane leak detection and alarm systems across coal mines,urban pipelines,and industrial chemical facilities.