The uLAS series laser gas analyzer is a high-performance laser gas analyzer developed based on the needs of on-site industrial online analysis and environmental monitoring at home and abroad. The analyzer adopts tunable semiconductor laser absorption spectroscopy (TDLAS) detection technology, with an ultra-low monitoring lower limit and a detection limit of ppb level. TDLAS technology has higher spectral resolution compared to other gas measurement principles, thus possessing excellent resistance to background gas cross interference, improving the accuracy and reliability of process gas analysis. The analyzer can customize gases (O2, CO, NH3, H2S, CO2, CH4, HCN) according to operating conditions