For continuous analysis of Sulfur Dioxide (SO₂) in process gas streams using an infrared detector. Percent and PPM levels available as Models 460 & 460L respectively.

For continuous monitoring of any combination of heat treat atmosphere gases such as Oxygen (O₂), Methane (CH₄), Carbon Dioxide (CO₂), Carbon Monoxide (CO), Hydrogen (H₂), Ammonia (NH₃), and Dew Point (standard and low ranges). Also available for other industrial process gases.