The dry block heating systems combines digital temperature control for precision and uniformity. The versatile dry block heater series are ideal for general sample heating, research or chemistry applications. Accurate, reproducible, rapid and safe heating of samples. Avanced temperature control combined with high quality, precision-engineered blocks provide superior thermal contact.rVersatile range of interchangeable heating blocks to fit any sample tube or plate.rOvertemperature cut-out.rRange of convenient features including alarms, single and dual point calibration, programmed start/stop (up to 72 hours), 'offset' for known sample temperature variation and choice of external or internal probes. Timer with buzzer from 1 to 999 minutes.rExternal probe available for accurate in-sample or in-block temperature control.rIncludes block removal tool for easy and safe removal of blocks.rOptions include blocks for 0.2 ml tubes, strips and 96-well microtiter plates used in molecular biology and biotechnology applications (QBD2 & QBH2 only).rThree programmable temperature/time segments plus end-of program segments (QBH2 only).