The PG-350 is a compact and lightweight stack gas analyzer that can simultaneously and precisely measure up to five separate gas components CO, CO2, O2, SO2 as well as NO or NOX with reference methods. It uses the principle of infrared radiation absorption, chemiluminescence and paramagnetic susceptibility. This analyzer is used for continuous emission measurements. It is used after an efficient treatment system (gas dryer). TÜV QAL1 certified DIN EN 15267 - 3 / EN 14181 / EN 15058 (CO) / EN 14789 (O2) / EN 14792 (NOx). The PG-350E achieves measurement performance equal to laboratory equipment in a highly portable package. The Cross-Flow Modulation type analyzers improve reliability. These analyzers suitable for: stack emission testing, US EPA RATA testing, QAL2, GHG emission research and reporting.