Online and downloadable materials for Countess 3 Automated Cell Counters

The manuals, brochures, application notes, downloads, demos, videos, and other resources in this section will help you get the most out of your Countess 3 Automated Cell Counter.


Documentation and literature


Customer stories

“Great device. Broad range of cell densities that it can handle. Good at distinguishing clumps and counting cells within clumps.”

Joanne Rzepka, Veterinary Medical Research & Development

“A very accurate cell counter and you can use it to count fluorescent cells as well. Excellent product. I’m very happy with it. I highly recommend it.”

Massimo Ammirante, University of California, San Diego


Demos and videos

Interactive 3D Virtual Tour

Tour the features and capabilities of Countess 3 Automated Cell Counters with our hands-on interactive demo.

Countess 3 FL instrument with icon of 3D rotational ability

Software updates

To download the latest software for Countess 3 Automated Cell Counters, including the 21 CFR Part 11 compliance option, see our Software Download page.


Educational resources

Educational resources for Countess 3 Automated Cell Counters include an abundance of online materials on cell imaging, cell counting, and cell culture.

Cell Analysis Learning Center

The learning center contains resources for cell analysis techniques and basic principles. Subtopics relevant to Countess 3 products include Cell counting information and the Molecular Probes School of Fluorescence.

Cell Analysis Learning Center s002380

Gibco Cell Culture Basics

Our free introduction to cell culture, covering topics such as laboratory setup, safety, and aseptic technique. You’ll also find basic cell culture techniques and methods for passaging, freezing, and thawing cultured cells.

A single cell depicted in blue

Verified cell lines

Cell lines verified on the Countess 3 Automated Cell Counters


Register your instrument

Register your instrument to receive notifications of software and firmware updates.


Resources for Countess II Automated Cell Counters

Find manuals, brochures, application notes, downloads, demos, videos, and other resources to help you get the most out of your Countess II Automated Cell Counter.


For Research Use Only. Not for use in diagnostic procedures.