Aerosol Spectrometers
welas® digital System 
Particle size / particle number determination from 120 nm - 100 µm and up to 106 P/cm3
- welas® digital 1000 | Light-scattering spectrometer for particle-sizing down to 120 nm
- welas® digital 2000 | Light-scattering spectrometer with fiber technology and one sensor
- welas® digital 3000 | Light-scattering spectrometer with fibre technology and two sensors for filter-testing
- welas® sensors for welas® digital and Promo® system
Promo® System
Particle size / particle number determination from 200 nm - 100 µm and from 106 P/cm3 for process measurement technology and stand-alone operation
- Promo® 2000 | Light-scattering spectrometer for process monitoring and as stand-alone device
- Promo® 3000 | Light-scattering spectrometer for quasi-simultaneous measurements for process monitoring and as stand-alone device
- welas® sensors for the welas® digital and Promo® system
Inas®
Inas® is the only measuring device worldwide that can determine particle sizes and particle numbers with a counting measurement method in concentrations up to 107 P/cm3. The temporal resolution for instationary processes, e.g. a spray burst, is up to 10 ms.
- Inas® | Light-scattering spectrometer for aerosol measurement of pharmaceutical inhalers within a few seconds