The instrument is one of the twelve CPCs manufactured by TSI Inc. that University of Manchester owns. The instrument is a continuous-flow particle counter that can detect and count particles by laser scattering in a very similar way to a standard optical particle counter after they are grown by condensation for easier detection. The instrument was formerly owned by UMIST and is currently operated by the University of Manchester/Universities' Facility for Atmospheric Measurement (UFAM). The instrument is occasionally combined with TSI 3010 to produce data currently stored in CEDA.