Nox Stack Gas Analyzer is known as the best practical analytical method for NO detection at parts per x billion level and with little or no interference from other pollutant gases. Its measurement is based on Chemiluminescence technique. Also, this analyzer is having an auto / remote calibration with calibration gas cylinder. Offered Nox Stack Gas Analyzer is accessible in diverse specifications according to the needs of customers. The amount of light produced is proportional to the amount of nitric oxide in the sample.