Invitrogen™ Countess™ 3 Automated Cell Counter by Thermo Fisher Scientific

Manufacturer Thermo Fisher Scientific  |   Model: AMQAX2000  |  Available Worldwide
4.5
/
5.0
  |  17 reviews

The Countess 3 Automated Cell Counter uses advanced machine-learning image analysis algorithms to deliver accurate cell counts and viability in seconds with the convenience of fully automated lighting, focus, capturing, counting, and saving thereby reducing the time and variability associated with manual cell counting.


Invitrogen™ Countess™ 3 Automated Cell Counter by Thermo Fisher Scientific product image
Invitrogen™ Countess™ 3 Automated Cell Counter
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Average Rating: 4.5
17 Scientists have reviewed this product

5 out of 5
Ease of use
4 out of 5
After sales service
4 out of 5
Value for money


  • Status:

    Advanced Reviewer
  • Member since: 2017

  • Organization: Roche



  • Ease of use
    3 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
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Saves me a lot of time
Rating: 3.7

  • Application Area: Cell counting

"This is a very good instrument. It makes cell counting a simple routine. No more need to use the hemocytometer"

Review date: 25 Jun 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Advanced Reviewer

  • Member since: 2021

  • Organization: Beth Israel Deaconess Medical Center



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Great cell counter.
Rating: 5.0

  • Application Area:Counting cells

"Great product and it makes your life easier when is time to count cells. Fast and reliable."

Review date: 18 Jun 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2021

  • Organization: University of Pennsylvania



  • Ease of use
    5 out of 5
    After sales service
    3 out of 5
    Value for money
    5 out of 5
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Vital to our lab!
Rating: 4.3

  • Application Area:Flow cytometry

"It works great for us. We use it to count cells for calculations of plate seeding, flow cytometry and xenograft cell implants. "

Review date: 22 May 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2020

  • Organization: Stanford



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Love the automated cell counter.
Rating: 5.0

  • Application Area:Cell counting

"Cell counter makes cell count so much easier and it shows the percentage and amount of dead cells versus viable cells which is great. The sales reps were amazing and so helpful, allowing us to try the cell counter for almost a month before purchasing. "

Review date: 17 May 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2021

  • Organization: Rutgers



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    4 out of 5
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Works great with most of the cell types!
Rating: 4.7

  • Application Area:Viable cell count

"Accurate, convenient, fast."

Review date: 17 May 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Expert Reviewer

  • Member since: 2012

  • Organization: Management of Scientific centers, DPA Al Ain



  • Ease of use
    4 out of 5
    After sales service
    5 out of 5
    Value for money
    4 out of 5
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Easy to use compact cell counter.
Rating: 4.3

  • Application Area:Cell Counting

"A compact cell counter for easy cell count of mammalian cells. This is handy in your cell culture lab. The machine provides nearly accurate estimates of total cell count, viable cell count/ dead cell count and percentage viability of your sample. The cells after trypsinization can be loaded (10ul) on a Countess slide after mixing with the trypan blue dye provided. The machine distinguishes the viable and dead cells based on the dye exclusion. It is easy to use, does not require too much maintenance and works relatively trouble free."

Review date: 15 May 2021 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Expert Reviewer

  • Member since: 2013

  • Organization: GEM Tox Consultants & Labs, Inc.



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Good, durable, accurate & reliable product that I love.
Rating: 5.0

  • Application Area:Counting cells

"East to use, durable, accurate & moderately priced."

Review date: 15 May 2020 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2016

  • Organization: University of Colorado, Denver



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    5 out of 5
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Great equipment.
Rating: 4.7

  • Application Area:Automatic cell count

"The equipment is really handy and easy to use. It performs the task of counting live as well as dead cells in a fraction of a few seconds. It also provides images of the cells counted. Data can be stored on machine or transferred to a computer."

Review date: 16 Jan 2020 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2019

  • Organization: UCSF



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
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Good tiny machine. Work great with most of the cell types with some limitations.
Rating: 4.3

  • Application Area:count cell

"Countess II is very easy to use and it's a small machine for the bench top. It's as simple as adding a 1:1 ratio of typhon blue (5ul) and your sample (5ul). You mix and pipet onto the plastic slide, wait 30 sec, then insert the plastic slide into the machine. You get the result of adjusted concentration and viability % of the live and/or dead cell of the sample. However, the limitation is that the cell size has to be in certain range. If it's too small, the readings won't be accurate. Also, it won't be accurate if it contains more than one type of cell."

Review date: 06 Nov 2019 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2019

  • Organization: University of Surrey



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Definitely worth the money!
Rating: 5.0

  • Application Area:Tissue Culture

"This has made our life in a massive teaching lab so much easier. Not having to manually count cells using a haemocytometer several times a week makes having this worth the money. The task that took us a several minutes to do now takes merely a few seconds. The instrument is very easy to use and quite small as well so doesn't take up much space."

Review date: 30 Oct 2019 | Invitrogen™ Countess™ 3 Automated Cell Counter


  • Status:

    Reviewer

  • Member since: 2018

  • Organization: A*STAR



  • Ease of use
    4 out of 5
    After sales service
    4 out of 5
    Value for money
    4 out of 5
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Great results, cant live without this instrument.
Rating: 4.0

  • Application Area:Counting cells

"The instrument is very simple to use and user-friendly platform, mix your cells with trypan blue and load the samples to the slides and inserted. It will give the results like less than 30 sec and more accureate."

Review date: 06 Jun 2019 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2018

  • Organization: Diostems



  • Ease of use
    5 out of 5
    After sales service
    3 out of 5
    Value for money
    3 out of 5
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Good but it needs some improvement.
Rating: 3.7

  • Application Area:Cell Counting

"It is very easy to use. However, we would like more FACS alternatives."

Review date: 17 Jan 2019 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Expert Reviewer

  • Member since: 2015

  • Organization: Postdoctoral Associate in Cambridge MA



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Great cell counter!
Rating: 5.0

  • Application Area:Cell Culture

"Extremely easy to use cell counter that also check viability of cells."

Review date: 30 Mar 2018 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Advanced Reviewer

  • Member since: 2016

  • Organization: Venezuelan Institute for Scientific Research



  • Ease of use
    5 out of 5
    After sales service
    4 out of 5
    Value for money
    3 out of 5
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Very useful. You Save time with it.
Rating: 4.0

  • Application Area:cell culture

"It is very easy to use. You can save a lot of time when you work a lot with cell lines."

Review date: 27 Mar 2018 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Reviewer

  • Member since: 2018

  • Organization: HP Inc



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    5 out of 5
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Easy tool and great results
Rating: 5.0

  • Application Area:Cell counting

"This is a simple set up tool and very user friendly. Wide range of people and backgrounds that are able learn system easily."

Review date: 07 Feb 2018 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Advanced Reviewer

  • Member since: 2016

  • Organization: Venezuelan Institute for Scientific Research



  • Ease of use
    5 out of 5
    After sales service
    5 out of 5
    Value for money
    3 out of 5
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Very useful in cell culture and when you work with a lot of cell lines. I love it.
Rating: 4.3

  • Application Area:Determination of cell number in cell cultures.

"This equipment is very useful in the laboratory, especially when you work with many cell lines at the same time. You can count cells very fast and save time. Also, this machine is very accurate in the determination of the cell number in culture and results are very reproducible."

Review date: 07 Feb 2018 | Invitrogen™ Countess™ 3 Automated Cell Counter
  • Status:

    Advanced Reviewer

  • Member since: 2015

  • Organization: The Institute of Cancer Research



  • Ease of use
    5 out of 5
    After sales service
    3 out of 5
    Value for money
    3 out of 5
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Highly recommended
Rating: 3.7

  • Application Area:cell counting

"Easy to use, could provide consistent counting instead of manual."

Review date: 27 Jul 2017 | Invitrogen™ Countess™ 3 Automated Cell Counter

The Countess 3 Automated Cell Counter is a benchtop cell counting system equipped with an advanced machine-learning algorithm, ruggedized optics, fully-automated focus and lighting, and image analysis software for rapid assessment of primary and immortalized cell samples.

  • Accurate—eliminates the subjectivity of manual cell counting and user-to-user variability
  • Fast—counts live and dead cells, measures viability, and reports average cell size with a single touch in about 20 seconds
  • Convenient—requires no cleaning or routine maintenance; flush-mounted high-resolution capacitive touchscreen and simple user interface provide quick startup, require minimal training, and offer automatic saving of data to USB or cloud

The Countess 3 Automated Cell Counter works in two simple steps:

  1. Pipet sample into a slide – choose between the Countess Reusable Slide or the Countess Cell Counting Chamber Slide
  2. Insert the slide into the instrument. Rapid Capture and Auto-Save modes allow cell counting with a single touch. Focus, lighting, and file saving are executed automatically.

Get accurate cell counts

The Countess 3 Automated Cell Counter uses trypan blue staining combined with auto-focus and lighting driven by a machine-learning image analysis algorithm to obtain accurate cell and viability counts. The measurement range extends from 1 × 104 to 1 × 107 cells/mL (the optimal range is 1 × 105 to 4 × 106 cells/mL), which is broader than that of a hemocytometer.

Transfer data and images to your PC or cloud

Using the USB port on the Countess 3 Automated Cell Counter and any USB drive, you can save your cell count results and images and transfer them to your PC. Alternatively, use the Wi-Fi dongle and save results to the cloud for remote access and sharing.  

Product Overview

Invitrogen™ Countess™ 3 Automated Cell Counter by Thermo Fisher Scientific product image

Invitrogen™ Countess™ 3 Automated Cell Counter

Manufacturer Thermo Fisher Scientific  |  Available Worldwide

4.5 / 5.0 | 17 reviews