Emerson's Rosemount CT4000 uses built-in Quantum Cascade Laser (QCL) technology to monitor gases such as NO, NO₂, SO₂, CH₄, H₂O, CO, and CO₂ levels in ambient environments of up to 70°C (158°F) and gas temperatures of 190°C (374°F).
Applications for this system include marine emissions monitoring, power plant emissions monitoring, engine management, engine combustion tools, engine health management and carbon trading.
