The Fidas® series of environmental dust monitors are certified, research-grade instruments designed for precise and reliable measurement of airborne particulate matter (PM₁, PM₂.₅, PM₁₀, and TSP) in ambient air. These monitors utilize the officially approved method of optical light scattering on single particles, ensuring highly accurate results even at elevated concentrations. Equipped with a polychromatic light source, the system offers excellent light stability and a long service life. The patented T-aperture technology, combined with advanced digital signal processing, enables real-time data acquisition with high temporal resolution and outstanding precision.

In addition to standard PM values, the Fidas® monitors provide particle count and detailed particle size distribution across 64 size channels—organized as 32 size classes per decade—within a size range of 0.18 to 18 µm. This fine resolution supports in-depth particle behavior and source analysis. The instruments are easy to calibrate on-site, require minimal maintenance, and are known for their low operational costs. Backed by internationally recognized certifications including MCERTS and TÜV , the Fidas® series is trusted by regulatory agencies and researchers worldwide for accurate environmental dust monitoring.