All dust emission monitoring, which need to show an official suitability according to EN 15859 (TA Luft), can be carried out with the LEAK ALERT 75/ 80 system. The systems differ in principle from optional internal (LA 75) or external (LA 80) operation. All further equipment features like automatic zero- and contamination check, insulated rods, measured data output in mg/m3 etc. can be individually selected depending on the requirements of the process.