CEMS-2000 B FT system uses direct thermal wet extraction method based on FTIR gas analysis technology, the system mainly has three major components: sampling pre-process-ing system, FTIR gas analyzer,and data acquisition and processing unit. The system can simultaneously monitor multiple groups of components in flue gas such as SO, NO, NO2, NOx, NH3, HCL, HF, O2, CO, CO2, CH4, H2O,etc. It is especially suitable for waste incineration.