Countstar® Rigel S3 Fluorescence Cell Analyzer

Countstar S3 System combines the three fluorescence channels plus a bright field digital microscope, an image cytometer, and a cell counter in a single bench-top instrument. This application-driven, compact, automated cell imaging system provides an all-in-one solution for cell counting, cell viability and T/NK cell mediated cytotoxicity through the use of preconfigured biological applications (BioApps). They are designed to simplify routine cell lab tasks,which leaves you time to focus on the research!

Excitation light: 375nm, 480nm, 525nm 
Emission filter:460nm, 535nm, 600LP


Count Star
Product feature

Up to 4 fluorescent channel and one bright field analysis at the same time

Up to 4 fluorescent channel and one bright field analysis in the same time

13 different fluorescent analysis combinations

13 different fluorescent analysis combinations

User Friendly Cell Cycle Analysis Protocols

User Friendly Cell Analysis Protocols 

Trypan blue ProtocolsTrypan blue Protocols: Obtain cell count, viability and concentration estimations based on trypan blue staining using a disposable consumable.
AO/PI Viability ProtocolAO/PI Viability Protocol: Run two fluorescence color assays in disposable consumable to determine the percentages of live, dead cells and concentration in the presents of debris and unwanted nonnucleated cell types including red blood cells.
Affinity of AntibodyAffinity of Antibody: This assay run as Green color assays in FITC binding antibody to determine the affinity of the biosimilar drug.
Surface Marker AssaySurface Marker Assay: Quantify specific cell populations based on surface marker expression (CD45+ CD4+, CD8 + MSC, CD56+ NK cells, etc.)
Cell CycleCell Analysis: Propidium iodide (PI) is a nuclear staining dye that is frequently applied in measuring cell cycles. This protocol determines cellular DNA content in cell cycle analysis.
Cell ApoptosisCell Apoptosis: Cell Apoptosis assay is a type used for determining the apoptosis percentage of cells by Annexin V-FITC/7-ADD staining method. 
GFP transfectionGFP transfection: The green fluorescent protein (GFP) exhibits bright green fluorescence when exposed to light in the blue to ultraviolet range. This protocol can analyze counting and percentage of GFP. 
Celling KillingCelling Killing: Run three fluorescence color assays in disposable consumable to determine the CAR T/NK-Mediated Cytotoxicity using Tracer and Viability Dyes

GMP and 21 CFR part 11 ready

Make a detailed record of any changes, edits, deletions, adjustments, etc. Electronic records cannot be deleted, including administrators. Electronic records include date, time, user name, machine serial number, and user’s actions

GMP and 21 CFR part 11 ready

FCS Express Software

The optional De NovoTM FCS Express software makes graphs touchable and customizable fluorescence channel boost your experiment reach. Countstar FL together with FCS Express is able to analyze for the cell apoptosis, cell cycle, transfection, affinity of antibody, CD marker and etc. 

FCS Express Software

Additional information

Weight13 kg
Dimensions43 × 37 × 61 cm
Diameter range

3μm ~ 180μm

Concentration range

1×104 ~ 3×107/mL

Objective magnification


Imaging element

1.4 megapixel, CCD camera

Excitation Light

480nm, 525nm, 375nm, 620nm

Emission Filter

460nm, 535nm, 580nm, 600LP, 665LP


1×USB 3.0 1×USB 2.0




10.4 inch touchscreen

Power supply

110–230 V/AC, 50/60Hz