CASY Vivo Impedance-Based Cell Counter & Analyzer

Accurate Cell Counting: Fast, Reproducible, and Efficient

CASY transforms cell counting with unmatched precision and reproducibility. Made in Germany, CASY is designed for researchers who prioritize precision, innovation, and simplicity

Your Challenges in Cell Counting

• Innacurate cell counts and inconsistent results.
• Time-consuming manual processes.
• High costs for consumables.

Solved by Cell Counter and Analyzer

• Great reproducibility from large stem cell aggregates to small yeast or even bacteria
• Automated, dye-free counting for maximum accuracy
• Faster analysis without complex sample preparation 
• Low running costs

CASY - the  Perfect Partner for Your Research

Elevating Cell Counting with Innovation, Accuracy, and Simplicity

Unmatched Precision and Reproducibility

CASY sets the standard in cell counting, delivering accurate, reproducible results—even with aggregates or tiny particles like bacteria.

No Sample Preparation

CASY eliminates tedious prep—dye-free, non-invasive counting saves time and preserves sample integrity.

Compatible with Various Cell Types

From stem cells and primary cells to bacteria and yeast, CASY adapts to your needs—ideal for toxicology, viability analysis, and more.

Save Costs and Time

CASY saves time and costs with minimal consumables and hands-on steps—its compact design fits any lab setup.

Regulatory Compliant

CASY supports GMP/GLP compliance with optional 21 CFR Part 11 compatibility—ideal for regulated research and QC labs.

User-Friendly Software  

CASY’s intuitive software simplifies analysis and tracks cell growth, viability, and aggregation—with robust reporting for clear, reliable results. 

Trusted by Experts

"We have successfully been using CASY for 10 years now. With CASY we are able to carry out reproducible cell culture experiments even when working with highly aggregated cells. CASY allows us to consider cell concentration and aggregation when seeding and harvesting cells, as both are measured by CASY. Measuring accurately cell number, the aggregation factor and the cell volume, gives us the opportunity to express analytical data as concentration per cell. Additionally, the molar amount of a substance within a cell can be calculated (used for example for metal uptake in μΜ)."

 Prof. Dr. Julia Bornhorst • Professor for Food Chemistry with focus on Toxicology • University of Wuppertal

"We have been using CASY for the fast and reliable determination of cell concentrations and cell diameters of our cell cultures for 20 years now. We are still  impressed by the high reproducibility of the measurements and the simple, intuitive operation of the device. The associated software offers great options for  managing and displaying the measurement results graphically."

 Dr. Heike Schwarz • Head of Cell Biology Department • DIARECT AG

"The CASY counter has been a key piece of equipment for the Oxford COVID-19 vaccine trial. We needed a reliable way to count cells from hundreds of blood samples on a daily basis. The CASY counter is a fast and accurate way of counting PBMCs. It is easy to use as it requires no sample preparation or staining, just add your sample to the CASYton buffer solution and it is ready to go! It is the gold standard of cell counting and we felt confident using it in our clinical trial due to its high reproducibility and accuracy."

Helen Sanders - Jenner Institute, COVID-19 Vaccine Trials

Applications

"With CASY, we achieved more efficient and precise analysis of cell cultures." 

- Prof. Dr. Julia Bornhorst, University of Wuppertal

• CASY Technology
• PBMCs  
• Cytotoxicity
• Algae Feeding-Daphnia
• Track T-Cell Activation
• iPSCs
• Algea and Protozoa
• Bacteria
• Erythrocytes & Platelets
• Primary Cells
• Fungi Spores
• Pollen Counting
• Trypanosoma & Leishmania
• Saccharomyces Cerevisiae

Scientists count  on CASY for decades

CASY Cell Counter through the years.