Counting Chambers according to McMaster

With double ruling. Calibratable. Cell depth 0.1 mm. Same ruling as Improved Neubauer, but the large square in the centre is divided into 16 squares each with a side length of 0.25 mm. Unlike the more modern Improved Neubauer counting chambers, the counting area of each group square is limited by the outermost of the triple border lines.

Chamber depth 0.5 mm.

For counting thrombocytes or erythrocytes. For export outside EU only, chamber depth 0.1 mm.Ruling:9 large squares, surface area 1 mm² each = 9 mm²Each large square is divided into 16 groups of squares 0.2 x 0.2 mmAdditionally there are small squares of a surface area of 0.0025 mm² each

With double ruling. Without snap-on clips. Calibratable.Cell depth 0.2mm. Grid has 16 x large 1 mm² squares. Each square is divided into 16 smaller squares each with a side length of 0.25mm and an area of 0.0625mm². These counting chambers are commonly used to count cells in cerebrospinal fluid.