Countess® Cell Counting Chamber Slides are designed for use with the Countess® Automated Cell Counter. Countess® slides are disposable. Each slide contains two cell counting chambers. This package comes with 1 box containing 50 slides and 2 x 1 mL vials of trypan blue (0.4%).

Ready to Use For Your Convenience
Each Countess® Cell Counting Chamber Slide comes presterilized and ready to use in an individual package. The Countess® slides are plastic and disposable. Cell counting occurs in a central location of the counting chamber. The volume counted is 0.4 µL, the same as counting four 1-mm² squares in a standard hemocytometer. Each slide has two separate, enclosed chambers that can be used to count one sample in duplicate or to count two different samples.

Use the Countess® Automated Cell Counter in 3 simple steps:
1. Mix 10 µL of sample with 10 µL of trypan blue, and pipet into one of the chambers of the Countess® slide.
2. Insert the slide into the instrument.
3. Press the "Count cells" button.

That’s it: get the total cell count, percent viable cells, and average cell size in as little as 30 seconds.

Countess® slides can be disposed of with your regular biohazard waste. Unlike a hemocytometer, there is no need to clean Countess® slides before or after use.

Learn more about the Countess® Automated Cell Counter at www.invitrogen.com⁄countess.

Read the Frequently Asked Questions (FAQs) for the Countess® Automated Cell Counter.