Z-200 nitrogen oxide analyzer is a gas analyzer product developed for ambient air quality monitoring and dilution method measurement in continuous emission monitoring system (CEMS). It is based on the technical principle of chemiluminescence method and combined with advanced microprocessing. Technology, equipped with built-in reformer and ozone generation module, provides accurate and reliable measurement and analysis of nmol/mol~μmol/mol (ppb~ppm) level NO/NO2/NOx.