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AethLabs microAeth

Specialty Air Analyzers

AethLabs microAeth MA-series aethalometers (the wearable MA200, portable MA350, and rack-mount MA600) measure black carbon optically on a filter tape at five wavelengths (UV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nm), with DualSpot loading compensation. The 880 nm channel reports black carbon (BC) and the 375 nm channel reports UVPM, a biomass and woodsmoke marker. Together the five wavelengths support source apportionment between biomass burning and fossil fuel (BCc WB, BCc FF, Delta-C, and BB %). Also logs sample flow, temperature, and RH.

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Measures

What the AethLabs microAeth Measures

5 parameters, each linked to its page: the sensors, units, and standards behind it.

Black Carbonng/m³ / %UV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nmSample FlowmL/minAir Temperature°CRelative Humidity%Dew Point°C
Connects via Thiamis
Wired interfaceUSBASCII

Models

AethLabs microAeth Models

4 models, each with what it measures and the ranges its datasheet gives.

ModelDescriptionMeasures & specs
MA200Wearable 5-wavelength (UV–IR) black-carbon aethalometer; 17-position filter tape (MAFT-L17), DualSpot loading compensation, internal pump (50–170 mL/min), onboard GPS, accelerometer, RH/temperature, and barometer.
Black CarbonUV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nmSample FlowAir TemperatureRelative HumidityDew Point
MA3005-wavelength black-carbon aethalometer; 85-position PTFE filter tape cartridge (MAFT-L85), DualSpot. Superseded: no longer in the current AethLabs lineup (the MA350 carries its 85-position tape forward).
Black CarbonUV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nmSample FlowAir TemperatureRelative HumidityDew Point
MA350Flagship portable 5-wavelength black-carbon aethalometer; 85-position PTFE filter tape, DualSpot, higher flow (to 170 mL/min) for lower noise. Developed for the US EPA RFP.
Black CarbonUV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nmSample FlowAir TemperatureRelative HumidityDew Point
MA600Rack-mount 5-wavelength (UV–VIS–IR) black-carbon aethalometer for fixed sites, mobile vehicles, and labs; 85-position filter tape (continuous sampling up to ~1 year), DualSpot source apportionment, the same measurement engine and data record as the MA200/MA350.
Black CarbonUV 375 nm, Blue 470 nm, Green 528 nm, Red 625 nm, IR 880 nmSample FlowAir TemperatureRelative HumidityDew Point

Solutions

Where the AethLabs microAeth Is Used

Solutions whose recommended configuration uses this instrument or whose standards it is built to, followed by solutions whose core panel it partly measures.

Wildfire Air Monitoring

Smoke plumes, black carbon, and community exposure

On the platform

What the AethLabs microAeth Gets From Aethair

Connected through Thiamis, its readings arrive in the same Environet account as Aethair's own monitors.

Live data and alerts

Environet shows the instrument live and alerts the people you choose by email, SMS, and webhook, at the thresholds you set. Noesis sets up a dashboard, a report, or an alert from a plain-text request.

Compliance reports

Aethair Reports produces scheduled or on-demand reports from the instrument's readings, as a PDF or secure link. Templates cover Aethair Blue, WELL v2, cabin air (ISO 23875), and the CMS-2567 healthcare codebook (ASHRAE 170), or you can report against custom limits such as OSHA PELs, NAAQS, EPA guidance, or your own program limits.

Dashboards and the app

Environet dashboards and the Aethair App show the instrument's readings just like any Aethair device. The occupant-facing Aethair Dashboards status display is built around Aethair IAQ and Aethair PRO.

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Questions

AethLabs microAeth FAQ

What do the five wavelengths measure?

The MA-series records optical absorption at 375 nm (UV), 470 nm (Blue), 528 nm (Green), 625 nm (Red), and 880 nm (IR). The 880 nm channel is reported as Black Carbon (BC); the 375 nm UV channel (UVPM) is sensitive to biomass and woodsmoke aerosol. Comparing the wavelengths (the Absorption Ångström Exponent) lets the instrument split black carbon into fossil-fuel and biomass-burning components. Each wavelength's compensated concentration is carried as a channel of the Black Carbon parameter.

What is DualSpot and what does the compensated 'BCc' value mean?

DualSpot collects aerosol on two spots at different accumulation rates at the same time. Comparing the two corrects the non-linear filter-loading artifact in real time. The integration ingests the loading-compensated value (BCc) at each wavelength rather than the raw, uncompensated BC1/BC2 spot values.

What source-apportionment outputs does it produce?

From the multi-wavelength spectrum the instrument derives biomass-burning black carbon (BCc WB), fossil-fuel black carbon (BCc FF), Delta-C (the UV-minus-IR difference, a woodsmoke marker), and the biomass-burning percentage (BB %). These all report against the Black Carbon parameter; BB % is the percentage figure.

Which environmental sensors are recorded, and is dew point measured?

The driver ingests the sample flow (total pump flow in mL/min), the sample temperature, and the sample relative humidity. The instrument also computes sample dew point onboard. That output is supported but not currently in the integration's poll list; it can be enabled on request or derived from sample temperature and RH. The internal barometric pressure and the tape/pump diagnostics are not ingested.

How do the models differ?

All MA-series models share the same five-wavelength measurement engine and data record. The MA200 is a wearable unit with a 17-position filter tape. The MA300 (superseded) and MA350 use an 85-position PTFE tape, and the MA350 runs a higher flow for lower noise. The MA600 is a rack-mount version for fixed sites, vehicles, and labs. AethLabs' AL30/AL80 low-cost monitors and the older single-wavelength AE51 are separate products, not read by this driver.

How does the integration read the instrument?

Over a USB-to-serial link at 115200 baud, the driver polls the instrument's data record each interval and parses the comma-separated fields. It auto-detects the model from the instrument's 'MA<model>-<serial>' identifier, so one driver serves the MA200, MA300, MA350, and MA600.

Sources: aethlabs.com · aethlabs.com

Bring the AethLabs microAeth Into Environet

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