Short Description: Countess 3 Automated Brightfield Cell Counter is a compact benchtop device for fast, accurate cell counting and viability assessment using brightfield imaging. It is used in cell culture, immunology, and biotechnology labs to monitor cell growth, density, and health.
Produser: Thermofisher
Equipment Information:
Functions:
- Measures total cell concentration (cells/mL) in suspension samples.
- Determines cell viability using Trypan Blue dye exclusion method.
- Distinguishes live and dead cells automatically via image analysis.
- Stores images and data internally with export options (USB).
- Suitable for mammalian cell lines, primary cells, and some insect cells.
- Uses disposable Countess chamber slides to minimise contamination.
- Reduces operator variability compared to manual counting.
- Applicable in immunology, biotechnology, cell biology, and bioprocess labs.
- Enables consistent viability assessment before transfection, passaging, or cryopreservation.
Operating Principle:
- Digital brightfield microscopy combined with image-processing algorithms to identify, count, and classify cells based on contrast and dye uptake
Technical Specification: Countess 3 QRC 2020 Quick Reference
VU ID: 8151252
Location: BVI 121
Core Facility: Eukaryotic Cell Engineering
Equipment is operated by Personnel only: No
It is allowed to work with the equipment independently after familiarization with the work process on site: Yes
Only those with the appropriate certificate/certificate are allowed to work with the equipment: No
There is an opportunity to participate in equipment usage training: No
Contact Scientist (Leading Scientist):Indrė Dalgėdienė
Contact email address:
Information for the User: