Countess™ 3 Automated Cell Counter (Invitrogen™)

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. Mix 10 μL of sample with 10 μL of trypan blue and pipet into a disposable Countess 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. For your convenience, a USB drive is supplied with the Countess 3 instrument and a WiFi dongle is available.