Liquid Particle Counters

Liquid particle counters are used to ensure the purity and quality of liquids in various high-precision industries, such as semiconductor, electronics, chemical and pharmaceutical. Liquid-borne particle counters are designed to detect and count particulate contaminants suspended in liquids, providing essential data for quality control and compliance with stringent regulatory standards.

Our range of fluid particle counters provides measurements and particle count data for a variety of sizes of particle contamination in DI / ultrapure water, chemicals, and parenteral, and are available for batch or online continuous operation, counting particles as small as 20 microns.

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DI Water Particle Counter: Ultra DI®

Ultra DI® counters deliver unmatched precision for semiconductor-grade ultrapure water systems, filtration performance verification, and advanced contamination monitoring. Helps to detect yield limiting contamination events early.

Available Models:

  • Ultra DI® 20 Plus – Detect particles down to 20 nm for cutting-edge UPW monitoring.
  • Ultra DI® 50 – Broader range for comprehensive contamination control.

DI Water Particle Counter: Ultra DI®

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20 nm Chemical Particle Counter: Chem 20™

Prevent process failures and poor device performance with the Chem 20™ chemical particle counter.

Ticked bullet point Respond quickly to chemical changes

Ticked bullet point Meet the International Roadmap for Devices and Systems (IRDS)

Ticked bullet point Reduce uncertainty with improved accuracy and reliability

20 nm Chemical Particle Counter: Chem 20™

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Liquid Particle Counter HSLIS
High-Sensitivity Liquid Particle Counter: HSLIS

The HSLIS series is engineered to safeguard your critical processes by delivering continuous, real-time contamination monitoring in DI water and process chemicals including corrosive liquids such as hydrogen fluoride (HF).

Ticked bullet point Several models available to meet a wide variety of applications

Ticked bullet point Cost-effective solution without compromise

Ticked bullet point High sensitivity: down to 0.05 µm in DI water and 0.065 µm in chemicals

The High-Sensitivity Liquid in Situ (HSLIS) Liquid Particle Counter provides continuous, real-time particle monitoring of contamination levels in DI water and corrosive liquids, including hydrogen fluoride (HF).

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Syringe Liquid Particle Samplers: SLS Family

Ensure product quality with SLS Family of instruments which offer small and exact sample measurements in a syringe that doesn’t contribute any contamination.

Ticked bullet point Reduce waste of expensive or hazardous chemicals

Ticked bullet point Use in a variety of environments

Syringe Liquid Particle Samplers: SLS Family

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Liquid Particle Counter for USP 788
Liquid Particle Counter for USP 788: APSS-2000

The APSS-2000 Liquid Particle Counter for USP 788 sizes and counts suspended particulate matter in a wide range of liquids, including parenterals, to meet all current U.S., European and Japanese Pharmacopoeia standards. Complete system includes:

Liquid Particle Counter for USP 788; sizes & counts suspended particles in a wide range of liquids, including parenterals.

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liquid particle counter liquilaz
Liquid Particle Counter: LiQuilaz® II Series

Ensure cleaner processes with the LiQuilaz ® II Series. Detect and reduce contaminations quickly and effectively to improve product quality.

Ticked bullet point Optimize sampling efficiency

Ticked bullet point Reduce downtime

Ticked bullet point Ensure compliance and quality control

Liquid Particle Counter: LiQuilaz® II Series

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Corrosive Liquid Particle Sampler
Corrosive Liquid Particle Sampler: CLS-700

Typical Applications

  • Wet process monitoring
  • Chemical process control
  • Bath monitoring
  • Particle level measurement in effervescent liquids

This Corrosive Liquid Particle Sampler combines a compression sampler with a LiQuilaz® II particle counter for effective measurement of particles in fluids contained in unpressurized vessels.

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Liquid Particle Counter Software: SamplerSight™

Delivers simple and reliable batch-based liquid particle measurement—controlling syringe samplers and capturing precise data from LiQuilaz® sensors. Gain a complete batch view with intuitive histograms, time plots, and tables, plus customizable reports that accelerate batch release and reduce costs.

Pharma version available: USP <788> calibration in just 20–30 minutes, full 21 CFR Part 11 compliance, and IQ/OQ/PQ documentation included. Optional installation, validation, and training services offered.

A user-friendly software program for operating batch-based liquid particle counting systems. Provides a comprehensive view of the collected data and easy-to-use reporting.

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