Modular processing system can process up to 20 slides simultaneously Slides are placed in the slide rack for easy transfer between modules High-capacity, flat-block cycler with twin thermal cycling blocks can be used for simple incubations or more complex thermal cycling reactions Unit minimizes intra- and inter-slide temperature variability to ensure assay reproducibility Integral, removable humidity chamber preserves sample integrity Two temperature control modes provide accurate temperature control Simulated Slide Control constantly calculates the sample temperature and adjusts the block temperature as necessary Block Control monitors the actual block temperature