DIDs are sensitive to a broad range of components.
In air separation plants, they are used to detect the components ; ; ; ;  in argon product in ppm range.
DIDs are non-destructive detectors.  They do not destroy or consume the components they detect. Therefore, they can be used before other detectors in multiple-detector configurations.
DIDs are an improvement over helium ionization detectors in that they contain no radioactive source.