Cell counter Countess II

The Countess II Automated Cell Counter uses trypan blue staining combined with an auto-focus mechanism and sophisticated image analysis algorithm to obtain accurate cell and viability counts. The measurement range extends from 1 x 10e4 to 1 x 10e7 cells/mL (the optimal range is 1 x 10e5 to 4 x 10e6 cells/mL), which is broader than that of a hemocytometer. The optimal cell size for accurate viability assessment is 7–60 µm, while particles as small as 4 µm can be successfully counted.

Using the USB port on the Countess II Automated Cell Counter, you can save your cell count results and images, and then transfer them to your PC.

The Countess II Automated Cell Counter works in 3 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.
3. Press the 'Count' button.

Specifications:

Capacity: One 2-chamber disposable slide
Cell Size: 4-60 µm (detection), 7-60 µm (viability)
Concentration: 1x10⁴-1x10⁷ cells / mL
Detection Method: Brightfield
Dimensions: 9" W x 5.5" D x 9" H (22.86 x 13.97 x 22.86 cm)
Display: 7" Capacitive touch screen
Field: 2.15 mm x 1.62 mm (3.48 mm2)
Voltage: 100-240 VAC
Weight: 8 lbs