Unlike the Neubauer improved counting chambers, the counting area in the group squares is limited, by the outermost of the three border lines.

• Four large squares in the corners are divided into 16 squares each - Leucocyte counting
• Large middle square divided into 16 group squares
• Each large square further divided in 16 squares

Counting grid: 9

Large squares: 1 mm² each

Large squares: 1 mm² each