Particle Counter Experts

Expert in contamination monitoring solutions since 1972 with a worldwide presence

Higher Knowledge

Particle Measuring Systems (PMS) is the inventory of laser based-particle counting, and we continue to lead the field with our dedication to hiring and training industry professionals. Our experts are recognized as thought leaders, evidenced through our speaking requests, webinars , authored papers and high education levels.

Particle Measuring Systems (PMS) is the inventor of the laser-based particle counter, and we remain the leader in this field today thanks to our dedication to recruiting and training professionals from the industrial sector. Our experts are now recognized as opinion leaders, as evidenced by our numerous on-demand seminars, webinars , publications  and the high level of training.

Our technical experts continually engage with customers and industry standards committees to understand the evolving needs and new challenges facing our broad customer base. Our renowned Particle College® program includes a two-day series of lectures and hands-on labs covering basic particle measurement concepts through to advanced contamination monitoring and control applications.

Superior Particle Counting Technology

Dedicated investment in research, engineering and equipment production has resulted in over 60 patents related to our products and applications. We create the technology that allows you to make fact-based decisions, improve process efficiency and constantly keep pace with evolving regulations.
Our technology can measure particles as small as 20nm in water , chemicals as small as 10nm in air and molecular contamination concentrations in the parts per trillion.
We are also leaders in microbial detection , developing traditional techniques that reduce false positives and rapid techniques to improve detection speed and accuracy.

Superior quality of our Particle Counters

Particle Measuring Systems sets the standard for contamination monitoring by first developing reliable, industry-leading products and then supporting the technology with an unparalleled quality management system.

Superior Service

Our service technicians are fully trained to calibrate your instruments to the most critical standards, and our software-controlled approach automates critical operations leading to consistency for every calibration. This ensures identical calibration results and performance, in line with factory calibrations, regardless of where the calibration was performed—anywhere in the world.

All calibrations are performed strictly according to ISO guidelines. PMS provides an unsurpassed counting efficiency test for first channel sensitivity. For pharmaceutical applications, particle counters must be calibrated according to ISO 21501-4:2007 , which includes measurements to verify and establish flow rate, counting efficiency, particle size, resolution, signal ratio, and zero count. Each calibration is also performed using the NIST traceable standard, and a certificate is provided for each calibration.