The Laser Aerosol Spectrometer (LAS) is an in situ airborne spectrometer manufactured by TSI, Inc. LAS provides measurements of particle size based on the light scattering of the sampled particles. It operates at 633 nm wavelength and has a particle size range of 0.09 to 7.5 μm. LAS can provide complete particle size distributions at a rate of 10 Hz. LAS is typically used as part of aerosol instrument suites such as NASA’s Langley Aerosol Research Group Experiment (LARGE) and NOAA’s Aerosol Microphysical Properties (AMP).

Instrument Details
- Spectrometer/Radiometer
- Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size DistributionEarth Science > Atmosphere > Aerosols > Aerosol Particle PropertiesEarth Science > Atmosphere > Aerosols
- Troposphere
- 10 Hz
- Point
- 473 THz
- https://tsi.com/getmedia/96903dad-66bf-4a09-afe1-13360edf15fd/3340_5001237_REV-A_US-WEB?ext=.pdf
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TSI Inc
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