GRIMM offers scanning mobility particle sizers with condensation particle counters (SMPS+C) and with Faraday cup electrometers (SMPS+E) as detectors. In addition, the GRIMM PSMPS is a mobility particle size spectrometer that combines a Grimm SMPS+C system with the Airmodus Particle Size Magnifier (PSM). All nanoparticle sizer systems feature the "Vienna-type" DMA design1, which is known for its highest size resolution and lowest particle diffusion losses. Thanks to the flexible design of the DMAs with three electrodes of different lengths (S-M-L), a wide range of experimental requirements can be met.
1) Winklmayr et al. (1991), J. Aerosol Sci., 22, 289
Reischl, G.P., Maekelae, J.M. and Necid, J. (1997). Aerosol Sci. Technol., 27, 651-672