Top 8 Liquid Particle Counter Brands

Today, controlling and assessing the quality of solutions across various industries has become immensely crucial. Particularly, the enumeration and tracking of particulates in solutions are indispensable parts of both manufacturing and research processes. This has spurred the development and emergence of a range of reputable particle counting machine brands for solutions. In this article, we will learn about top liquid particle counter brands in this field; names that have risen to the top with high-quality products and solutions to meet the diverse needs of industries.

Introduction to liquid particle counter

What is a liquid particle counter?

Liquid particle counter is a device used to measure and count the number of particles of a specific size; or sort by size in a liquid sample. These particles can be dust particles, solid particles, microbial cells; or any particulates present in the solution. And they usually range in size from a few micrometers to hundreds of micrometers.

Liquid particle counters work by running a liquid sample through an optical detector or sensor; to detect and count particles based on their size and optical properties. Particle counting results can be used to test and ensure the quality of water, oil, petroleum, food, healthcare, etc., which require control and monitoring of particles of specific sizes.


Liquid particle counters can be classified according to their type and primary application. Below are two common classifications:

By Type

  • Ultrapure Water Particle Counters: This type of machine is specifically designed to measure and inspect particles within ultrapure water, commonly used in the semiconductor and electronics manufacturing industries where cleanliness and water quality are of utmost importance.
  • Chemical Particle Counters: This counter is used for quality inspection and particle control in chemical substances and other liquids, especially in the chemical industry and production process.

By Application

  • Electronics & Semiconductors: Particle counters are widely used in the semiconductor and electronics manufacturing industries to ensure the cleanliness and quality of the manufacturing environment and the final product.
  • Chemical: Liquid particle counters in the chemical industry help control and ensure product and process quality.
  • Pharmaceutical: Trong ngành dược phẩm, máy đếm hạt đóng một vai trò quan trọng trong việc kiểm tra và đảm bảo sự sạch sẽ và chất lượng của sản phẩm dược phẩm. In the pharmaceutical industry, particle counters play an vital role in testing and ensuring the cleanliness and quality of pharmaceutical products.
  • Others: In addition, liquid particle counters are also used in a variety of industries where quality control and ensuring the cleanliness of waste are important.

Top liquid particle counter brands

1. Particle Measuring Systems

Among top liquid particle counter brands, Particle Measuring Systems (PMS) is a pioneering name in the field of precision measurement, and a proud member of Spectris plc, a global leader in providing invaluable insights to various industries. With a rich legacy dating back to 1972, PMS has consistently led the way in contamination monitoring, earning its reputation as the largest particle counter manufacturer in the world. This remarkable achievement was made possible through the invention of laser particle counters, which revolutionized the way accurate data and results are obtained in clean room environments.


PMS’s commitment to innovation and excellence is unwavering, with more than 60 patents to their name and a dedication to staying at the forefront of technological advancements. Their mission is clear:

  • Leading Technology
  • Quality Service
  • Collaborative Solutions
  • Unmatched Expertise

With a global team of dedicated and creative individuals, PMS not only equips their customers with the tools to reduce time to market, improve processes, quality, and yield but also contributes to a cleaner, healthier, and more productive world. With a presence in over 50 countries and a network of over 35 distributors, PMS ensures that they are “local everywhere” to meet the needs of their customers and remain at the forefront of the industry.

Typical products in PMS’s liquid particale counters include: Liquilaz II E Series, Liquilaz II S Series, HSLIS-M65e, Ultrachem 100, APSS 2000.

Liquid Particle Counter: HSLIS-M65e

2. Rion

Rion, founded in 1944 as Kobayasi-riken Co., Ltd., emerged from the research efforts of the Kobayasi Institute of Physical Research, dedicated to physics and acoustics. Rion initially pioneered the manufacture of crystal elements for acoustic equipment in Japan. Over the years, they expanded into producing hearing instruments under the “Rionet” brand, which remains a top choice in Japan. In 1960, Kobayasi-riken rebranded as Rion, signifying “science” and “acoustics.”


One of Rion’s notable achievements is its expertise in producing cutting-edge particle counters. These counters are indispensable in industries requiring precise cleanliness management, such as semiconductors, pharmaceuticals, and precision equipment. Rion’s commitment to innovation, quality, and their role in promoting societal well-being are central to their mission.

 Liquid particle counter from the Rion brand: KL-30B, KL-30AX, KL-28BF, KL-28B, KS-16F, KS-16, KL-30A.

3. Lighthouse Worldwide Solutions

Founded in 1982, Lighthouse Worldwide Solutions has emerged as the world’s premier supplier of real-time contamination monitoring systems. Lighthouse offers a comprehensive suite of contamination monitoring solutions, including Airborne Particle Counters, Microbial Samplers, Liquid Particle Counters, and Temperature/Humidity sensors. These solutions are widely adopted in industries spanning semiconductors, pharmaceuticals, data storage, biotechnology, aerospace, and defense, across the globe.

Lighthouse Worldwide Solutions brand

Pioneering an Open Architecture system, the Lighthouse Monitoring Systems provide unparalleled flexibility, allowing customers to integrate various sensors into a single monitoring system.

Lighthouse’s award-winning line of particle counters comprises handheld, portable, and remote devices equipped with features like touch screen displays, detailed reporting functions, historical data review, rechargeable Li-ion batteries, and alpha-numeric location labels. Additionally, Lighthouse excels in designing, installing, and maintaining some of the most comprehensive contamination monitoring systems worldwide. The Vertex50 is an outstanding liquid particle counter from Lighthouse.

4. Beckman Coulter

Beckman Coulter’s commitment to innovation dates back to its origin in 1935 when Dr. Beckman sold the first commercial pH meter. Over the years, Beckman Coulter has introduced groundbreaking laboratory instruments like the DU spectrophotometer and helipot potentiometer. Through strategic acquisitions, it expanded its presence and offerings in the 1950s and 1960s, solidifying its position in science, industry, and medicine.

Beckman Coulter brand

Today, Beckman Coulter is a prominent name in clinical diagnostics and life sciences research. With a history dating back to 1935, it has made significant contributions to the field of particle counting and has dedicated itself to creating efficient laboratories that enhance patient health and reduce healthcare costs. Beckman Coulter continues to lead in biomedical testing and comprehensive product lifecycle management. HIAC particle counters from the Beckman Coulter brand provide accurate, consistent fluid monitoring.

5. Entegris (PSS)

Entegris is a leading global developer, manufacturer, and supplier of microcontamination control products, materials, and advanced process solutions for the semiconductor and other high-technology industries. The company was founded in 1966 and has its headquarters in Billerica, Massachusetts, USA. Entegris plays a crucial role in enabling the manufacturing of advanced semiconductor devices and other high-tech products by providing solutions to manage and control contamination at a micro-level.

Entegris brand

Entegris has a strong presence in the semiconductor industry, where even minute particles of contamination can result in defective chips. Their products and solutions are critical to ensuring the high quality and reliability of semiconductor devices. They also serve a range of other industries where contamination control is essential, including pharmaceuticals, biotechnology, data storage, and more. AccuSizer® A7000 SIS is a typical liquid particle counter from this brand.


Founded in 1992, PAMAS has established itself as a prominent player in the field of liquid particle counting systems. The company specializes in the development, manufacturing, distribution, and servicing of liquid particle counters, catering to various applications, including contamination control, filter testing, component testing, and general cleanliness assessment.

PAMAS brand

PAMAS is known for its highly advanced optical sensors, all meticulously crafted at its headquarters in Germany. With a dedicated research and development department, PAMAS has taken the lead as the market leader in the liquid particle counting industry. Their commitment to precision and innovation underscores their reputation for delivering top-quality solutions for contamination control and particle analysis.

Featured products: PAMAS 4132, PAMAS AS3, PAMAS S40, PAMAS S4031, PAMAS S50, PAMAS S50DP, PAMAS SBSS, PAMAS SVSS, …

7. Chemtrac

Founded in 1985, Chemtrac, Inc. has emerged as a prominent manufacturer of process monitoring and control instruments for applications in water treatment, wastewater management, and various industrial processes. What sets Chemtrac apart is its unwavering dedication to delivering tangible results for customers. This commitment to achieving customer satisfaction has been the driving force behind their success.

Chemtrac brand

Among the various instruments and solutions offered by Chemtrac, their expertise extends to the realm of particle counting and liquid analysis; with devices such as: PC3400, PC 4400, PC3,… The company’s high-quality monitoring and control systems for particle counting are integral to ensuring the quality and efficiency of water and wastewater treatment processes. Chemtrac’s dedication to providing accurate and reliable solutions for particle analysis underlines their reputation as a trusted partner in the field of water quality and process control.

8. Suzhou Sujing

Suzhou Sujing Automation Instrument Equipment Co., Ltd. is a leading player in the particle contamination measurement field in China, known for its comprehensive expertise in scientific research, development, and production. A subsidiary of the renowned Jiangsu Sujing Purification Group Co., Ltd.; stands as a national leader in technological innovation, manufacturing, and environmental protection solutions related to air and gas purification and energy conservation.

Suzhou Sujing brand

Sujing Instrument’s mission is to deliver application-driven products and services related to particle measurement and monitoring; aligned with the highest standards of quality and excellence. As an ISO9001 registered company; Suzhou Sujing combines a wealth of experience with cutting-edge technology to provide solutions for particle measurement; making it a trusted and reliable partner in the field.

Featured products: LE100, LE100 LE100S, FDA 21 CFR Part 11.

In this article, Techmaster has named the top liquid particle counter brands; is a leader in providing effective and quality solutions to a variety of industries. By reviewing and comparing these top brands; we can clearly see their important contribution towards ensuring cleanliness and quality in production and research.

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