Manual counting chamber

portablefor blood cells

Counting chambers made of special optical glass Assistent® counting chambers are precision measuring instruments. They are used to count the number of particles per volume unit of a liquid. The counting chambers are supplied with CE mark as per IVD directive 98/79/EC. Counting chambers without CE mark are available for use outside the European Union only. The lateral fields for inscription are separated by grooves from the three ground and polished supports. The central support is deeper than the outer ones and is referred to as "depth of chamber". The depth (tolerance ± 2 %) depends on the ruling. The rulings are engraved into the central support. Counting chambers with double ruling are common. The central support of those chambers is divided by an additional groove. Counting chambers bright-line: The central support is coated by a rhodium layer wherein the rulings are engraved. The coating provides a sharp contrast and the lines appear brightly illuminated. Special production: Other depths are available on request.