With the automatic cell counter Countstar Cell, cell concentration and viability can be quickly and accurately measured through easy operations, reducing the complexity and time required by hemocytometers while increasing precision.

Product Overview
Countstar Automated Cell Counter is a cell counting and analyzing instrument developed on the basis of classic trypan blue staining. Integrating advanced optical imaging technology and intelligent image recognition technology.
 
Countstar Cell can complete accurate cell counting in less than 20 seconds and provide：
cell concentration
cell viability
average diameter
average circularity
diameter range and aggregation of cells in histograms
 
All the data are saved automatically and can be output in JPEG, EXCEL, PDF. In addition, the Countstar software system also provides cultivation time chart (CTC), overlay analysis and other statistical and analytical functions.
 
Easy and convenient:
- Within 20 seconds through three steps with one button

Wide range compatibility:
 - Countstar is applicable to cells with diameter between 5-180um, like blood cell, mammalian cell, insect cell, algae and some planktons.

Product performance:
 - Measure cell properties in an all-round way   

Product Performance

Simple and quick 
- Fill 20ul of the sample, click start and the test of a single sample will be completed in 5-20 seconds.
 
Wide range compatibility
- Countstar is applicable to cells with diameter between 5-180um, like blood cell, mammalian cell, insect cell, algae and some planktons.
 
Accurate and clear results
- 5-megapixel color imaging and a wide sample collection range ensures clear and accurate visualization. The unique fixed-focus design guarantees cross comparisons and time-sequential comparisons.
 
Comprehensive parameter analysis
- Cell concentration, viability, diameter, circularity and aggregation rate and automatically generating the cell growth curve and statistical charts.
 
Strong and sustainable management
- The database supports the sustainable management of test data. The multi-user access controls can ensure the quality control and data security of industrial users to the maximum extent.
 
Environment-friendly and cost-efficient consumables
- The one-piece multi-slot design minimizes the wasting of resources and cuts down your test costs. The consumables are reusable.
 
Accuracy and reliability guaranteed by multiple technologies
The perfect balance achieved by Countstar between HD imaging and a large sampling range in combination with intelligent image recognition and calibration technology contributes to a clear presentation of measurements. Unique cell and particle measurement modes, a flexible and convenient parameter debugging and correction optimizing system and other features ensure high statistical consistency between the measurements of Countstar and those obtained through manual counting, and greatly reduce errors in parallel measurement with the latter. For these reasons, Countstar Cell is the most trusted upgrade and substitute for manual counting.

Based on trypan blue staining, Countstar Cell has a measurement range of 1×104-3×107 cells/mL, with the optimal measurement range being 1×105-5×106 cells/mL. In addition to good similarity between its measurements and those of a hemocytometer (see Fig. 1 and Fig. 2), Countstar can avoid errors caused by manual counting, thus making it much more reliable than manual counting (see Fig. 3, Fig. 4 and Fig. 5).

Established in 2009 by Alit International Trade Co., Ltd., Shanghai Ruiyu Biotech Co., Ltd. is a hightech company committed to the development of modern cell analysis technology and the manufacture of relevant instruments.

Our mission is to “change the future through innovation and boost the technological progress ”. We attach great importance to the R&D of new products and product quality, and consider innovation as the driving force for company growth, and quality as life. In just a few years after establishment, Ruiyu Biotech has obtained several national invention patents and owns the patented core technology of the products.

We have developed and launched a series of products including: Countstar Automated Cell Counter , Countstar Automated Yeast Counter, Countstar Automated Medical Counter and Countstar Automated Algae Counter.

Featuring ease of use, efficiency, accuracy and reliability, these products have been widely used in major research and medical institutions in various fields including biopharmaceuticals, beer and beverages.