Based on tunable diode laser absorption spectroscopy (TDLAS) technology principle, Online Extractive NH3 Laser Gas Analyzer eLAS-100 scans and analyzes NH3 absorption lines of 1512 nm, and then the concentration of NH3 can be obtained. It adopts extractive and In-situ measurement method, getting an rapid and accurate measurement of injecting ammonia or escape ammonia detection in the applications of SCR/SNCR denitration process control. Features Reliable heated optical path with maximum 3 meters Resolution of 0.1ppm Single spectra scan, no interference from dust, tar and background gases Maintenance-free design Applications SCR/SNCR denitration process control Engine emissions control Atmosphere monitoring Chemical process control