Palas Fidas® 200 & 200 S

Fine dust aerosol spectrometers

The Palas Fidas® 200/200 S continuous ambient air quality monitoring systems provide continuous and simultaneous measurements of PM1, PM2.5, PM4, PM10, TSP (PMtot) and the particle number concentration. The Fidas® 200 is a fine dust measurement system for regulatory ambient air quality measurements and is typically installed in an existing monitoring station, while the 200 S is integrated into an IP65 EN 16450 approved weatherproof housing. In this way, the Fidas® 200 S can be used as a stand‐alone device for outdoor measurements.

Acoem Australasia (Ecotech Pty Ltd) is the official distributor of Palas in Australia and New Zealand.


Continuous real‐time measurement of PM values (simultaneously)
Additional information through particle number concentration
Time resolution adjustable from 1 minute
Light source: LED with high stability and long lifetime
Low maintenance
Long durability, calibration checks possible on site
Reliable and easy handling
No radioactive material or consumables with low operating costs. Connects to PLC / SCADA system
Drying system
Intelligent Aerosol Drying System (IADS) prevents erroneous classification of particles due to moisture
Network capabilities
Results and data are only available to authorised users and can be downloaded or viewed anytime at work, home or on the road.Remote operation and data storage on the world wide web.

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Palas® has developed the certified devices in the Fidas® 200 series for environmental monitoring in networks, immission measurements, long-term studies, emission source allocation or propagation studies, for example at volcanic eruptions or large-scale fires. The system is used just as successfully in public measuring networks and conurbations as it is along coasts, in mountains, in the Arctic and in desert regions.

Fine Dust Monitoring systems

Fidas® 200, Fidas® 200 S and Fidas® 200 E are currently the world’s only optical fine dust measurement systems with single particle analysis for the fine dust fractions PM10 and PM2.5 that have passed this test in accordance with DIN EN 12341 and DIN EN 14907 and have been certified in accordance with DIN EN 15267-1 & -2. The Fidas® 200 series has also been approved for regulatory measurements in the UK (MCERTS) and France (Homologation).

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