Products & ReviewLife Sciences

Invitrogen™ Countess™ 3 Automated Cell Counter

Thermo Fisher ScientificAMQAX2000Available: Worldwide

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.

Thermo Fisher Scientific

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Average Rating 4.5

|22Scientists have reviewed this product

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Makes my day better

 

Average Rating 5.0

Application Area:

Immunotherapy

Countess 3 is very easy to use and very efficient. Counting cells has never been easier and faster. I really recommend it.

Review Date: 5 Jun 2024 | Thermo Fisher Scientific

The device helps me prepare the cell samples more efficiently

 

Average Rating 4.7

Application Area:

automated cell counter

The device is easy to use with high accuracy. It can be used with disposable or reused slides, which can be environmentally friendly. Since I need to isolate the primary cells and require counting with many samples, I could do it more efficiently and accurately with the automated cell counter, which benefits my experiments.

Review Date: 28 Mar 2023 | Thermo Fisher Scientific

Great results and easy to use!

 

Average Rating 5.0

Application Area:

Count cells

It is really easy to use!

Review Date: 30 Dec 2022 | Thermo Fisher Scientific

Simple and easy to use

 

Average Rating 5.0

Application Area:

Cell counting

Very easy and simple to use, would recommend as a tissue culture tool.

Review Date: 25 Sept 2022 | Thermo Fisher Scientific

Great device. I highly recommend it!

 

Average Rating 4.3

Application Area:

Cancer biology

The device makes my cell counting more effective and reproducible. It is user-friendly, and so far, our lab is very satisfied with it.

Review Date: 26 Jul 2022 | Thermo Fisher Scientific

Saves me a lot of time

 

Average 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 | Thermo Fisher Scientific

Great cell counter.

 

Average 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 | Thermo Fisher Scientific

Vital to our lab!

 

Average 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: 21 May 2021 | Thermo Fisher Scientific

Love the automated cell counter.

 

Average 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: 16 May 2021 | Thermo Fisher Scientific

Works great with most of the cell types!

 

Average Rating 4.7

Application Area:

Viable cell count

Accurate, convenient, fast.

Review Date: 16 May 2021 | Thermo Fisher Scientific

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:

Pipet sample into a slide – choose between the Countess Reusable Slide or the Countess Cell Counting Chamber Slide

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.

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