Scilogex 18900224 heating block, used for 0.2ml, 0.5ml and 1.5/2ml tubes, 18 holes each size this heating block is for used with scilogex hb120-s led digital dry bath, that is ideal for molecular biology, histology, clinical, environmental and industrial laboratories, including melting and boiling point determination, enzyme reactions, incubation and activation of cultures, immunoassays, dna denaturation, culture media tests, coagulation tests, blood-urea-nitrogen determinations and in-situ hybridizations. With a low profile and space saving design, control of temperature and time is displayed in real-time with clear independent displays. Various high grade aluminum blocks are available for common tube sizes providing excellent temperature uniformity from ambient +5 to 120c. this heating block has 18 holes for each size of 0.2ml, 0.5ml and 1.5/2ml tubes.