The gold standard in nanoparticle counting for many decades is now updated with newly extended size and concentration range.

TSI Condensation Particle Counters (CPCs) are the most referenced, backed up by 40+ years of experience. The 4th generation makes the best CPCs even better: Providing easier use for everyone with an intuitive direct-touch user-interface, new software and secure internal data storage for months of data. Improved performance, new features and diagnostics make it the best condensation particle counter in the market.

Our water-based 3783 Environmental Particle Counter operates 24/7 for up to four weeks on one liter of water, making it ideal for low interaction settings such a remote monitoring stations. For customers who must meet stringent requirements for data comparability, use model 3750-CEN, a butanol-based CPC that complies with European specification CEN/TS 16976.



The Standard CPC model 3750 fits seamlessly into the family of four Butanol-based CPCs including the High Concentration, the Ultrafine Particle Counter, and the 1-nm model, and is fully integrated into the SMPS™ family model series 3938.

*SMPS stands for Scanning Mobility Sizer, another reference system by TSI to measure nanoparticle size distributions.


  • Basic aerosol research
  • Filter testing
  • Combustion
  • Health and atmospheric studies


  • Extended concentration range up to 100,000 particles/cm³
  • Extended size range down to 7 nm (D50) – Improved counting efficiency for SMPS™ spectrometer
  • Data rate up to 50 Hz – Capture highly dynamic processes
  • Reliable internal memory storing weeks of data for continuous monitoring
  • Water-removal system – Compatible to high-humidity environments
  • Improved Diagnostics with Pulse Height Monitoring
  • Fast response to rapid changes in aerosol concentration (T10-90 < 1 sec)
  • Automatically shuts off of flow when inlet is blocked
  • Upgradeable with CEN/TS 16976 calibration for continuous ambient monitoring
  • Upgradeable to 1-nm-CPC with compatible Nano Enhancer

Brošure i tehničke specifikacije

Particle Instruments Catalog US

Condensation Particle Counter Model 3750 Spec Sheet A4


Posteri i radovi

2017 AAAR Poster: Design Criteria and Developments of Butanol CPCs 375x

WHITE PAPER – Understanding Particulate Pollution – Why Air Quality Matters

WHITE PAPER – Understanding Particulate Pollution-How Air Quality is Measured A4