With the suitability to standards EN 14181, EN 13284 and EN 15267-3, as well as the TÜV certification according to 13., 17. and 27. BImSchV, the system QAL 991 can be used without exception in all existing applications in which dust emissions have to be measured. Due to the technology (electrodynamic) the QAL 991 is, in contrast to optical systems, less sensitive to contamination and can also be used in problematic applications. With our equipment selection you can configure the sensor precisely for your application.