For gas analysis, gas detection and gas concentration measurements an infrared (IR) light source is required. We offer two types
of IR light sources. The HSL Series is a low-cost IR source which can be used for all applications where the absorption wavelenghts
are shorter than 4.5 µm. For gases like CO or NO
x , a broad band IR source of the EMIRS Series should be used to generate
an appropriate signal level.