Palas AQ Guard Indoor
AQ Guard Indoor has the ability to measure the smallest airborne particles in a room, using highly advanced particle measurement technology. It can also assesses
the number of people present in the room by measuring the levels of CO2. This combination provides a unique aerosol monitoring platform (patent pending) to guarantee an environment with clean and healthy air.
This high-tech device provides a complete aerosol room surveillance system. It helps to keep a healthy room atmosphere and to reduce infection risks.
Palas AQ Guard Ambient
This product is only available in Australia, NZ and Nordic countries – please get in contact with us to find out more.
The Palas AQ Guard Ambient utilises the same advanced technology and sophisticated design as the AQ Guard System. A protective cover and heated aerosol inlet turns the AQ Guard System into the AQ Guard Ambient and comes with a compressed Aerosol Drying system that has the ability to eradicate fog droplets, cloud and compensate humidity influence on PM data even at 100% rH.
Features & Specifications
- Technology based on the Fidas® 200 series; simultaneous measurement of CN, PM1, PM2.5, PM4 and PM10 and TSP
- Computation of air quality index based on measurements of particulates, CO2 and TVOC
- High accuracy due to advanced algorithms
- Long-term stability due to self calibration for measurement of flow rate, particulates, and gaseous pollutants
- Up to 2 years of operation without calibration; user can recalibrate on site with NIST traced test powder
Fidas 200 Continuous Ambient Air Quality Monitoring System

The Certa 1000/Fidas® 200 is a fine dust measurement system for regulatory ambient air quality measurements. This model is typically installed in an existing monitoring station.
The Certa 1000/Fidas® 200 continuous ambient air quality monitoring systems provide continuous and simultaneous measurements of PM1, PM2.5, PM4, PM10, TSP (PMtot) and the particle number concentration.
Fidas 200S Continuous Ambient Air Quality Monitoring System

The Fidas 200S is a fine dust monitoring and emission measurement system for the measurement of PM1, PM2.5 as per EN 14907 and PM10 as per EN 12341.
The Fidas 200S consists of a Fidas 200, which is integrated in an IP65 weather‐proof housing that can be used as a stand‐alone device for outdoor measurements, e.g. on the Zugspitze (Germany´s highest mountain) or at the North Sea Coast.
The Fidas 200/200S continuous ambient air quality monitoring systems provide continuous and simultaneous measurements of PM1, PM2.5, PM4, PM10, TSP (PMtot) and the particle number concentration.
Fidas Mobile Portable real-time dust monitor with battery operation

The Fidas mobile is designed as a portable handheld device with battery or mains operation. It simultaneously measures the environmental mass fractions PM1, PM2.5, PM4, PM10, TSP or the indoor mass fractions respirable, thoracic, and inhalable according to DIN EN 481. In addition, it reports the particle number and – if desired – the particle size distribution in up to 64 size classes in the particle size range of 0.18 – 18 μm or 0.4 – 40 μm. For continuous measurements, a time resolution from one second to hourly or daily mean values can be set.
Palas Fidas 200E Dust Aerosol Spectrometer

The FIDAS 200E is an EN 16450 approved fine dust aerosol spectrometer for simultaneous measurement of PM2.5 and PM10. At the same time PM1, PM4, PMtot, the particle number concentration and the particle size distribution are calculated and recorded. It features a separate sensor module to allow for flexible installations in stations with existing ceiling glands.
Features & Specifications
- Type-approved and certified according to latest EN requirements (EN 15267)
- High flexibility for installation due to separation of sensor unit and control unit
- Continuous and simultaneous real-time measurement of multiple PM values
- Additional information on particle number concentration and particle size distribution
- Adjustable time resolution starting at 1 minute
- Light source: LED with high stability and long lifetime
Additional Information
- Regulatory pollution control in monitoring networks
- Ambient air monitoring campaigns
- Long-term studies
- Emission source attribution
- Emission dispersion studies (e.g. fires, volcanoes)