Aerosol Spectrometer

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® mobile | portable, battery operated aerosol spectrometer with touch screen
• Promo® 1000 | based on the welas® digital 1000, model with touch screen
(see Promo® 2000)
• 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