CEMS is short for Continuous Emission Monitoring System
Continuously measures the emission of pollutants coming out of furnace or boiler stacks into the air.
Analyzers, sample handling system and controller designed to detailed US EPA specifications to measure CO, NOx, and O2 in the combustion gas coming out of a furnace or boiler.
Sometimes: SO2, CO2 , HCl, HF ,Mercury and THC.