Counting chambers Helber 0.02 mm, dark line, CE

(system Thoma with special depth) with double net ruling, made of special optical glass, special depth 0.02 mm, with 2 cover glasses thickness 0.4 mm, without clamps, for applications according to EU registration 2017/746 on in vitro diagnostic medical devices (IVDR), with CE mark and batch number for comprehensive information and traceability, ​multipack: 10 pcs. more