The Rosemount CT4400 is a purpose-built quantum cascade laser (QCL) and tunable diode laser (TDL) analyzer designed to help plants reduce ownership costs and report emissions accurately in environmental monitoring applications measuring standard components such as nitric oxide (NO), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), carbon monoxide (CO), carbon dioxide (CO₂) and oxygen (O₂). Optimized for cold and dry applications running at ambient pressure, the continuous gas analyzer offers the benefits of QCL/TDL technology, including high sensitivity, accuracy, improved stability and low-drift performance in a configuration that allows fast, easy integration into existing plant infrastructure. 

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