Continuous automatic monitoring of the alpha- and beta- radioactive aerosol concentration in the working air and in the air in ventilation ducts and stacks.
• Radon, toron progenies and gamma background compensation
• On line alpha spectrometry
• Audible and visual alarm signals of the excess of preset thresholds
• Control of electromagnetic valves when operating with the external air sampling line
• Control of pump unit
• Periodic calibration by means of standard beta- and alpha-sources
