Precision temperature stability ensures reproducibility of results Custom block modules provide flexibility for heating different size tubes Built-in temperature sensing probe for outstanding temperature accuracy and control Timer function allows the user to accurately monitor the heating time These heaters have dynamic temperature stability providing outstanding temperature uniformity and stability. For a complete system order both a standard or advanced digital controlled heater and the desired heating block modules. Standard Digital Dry Block Heaters feature a proportional integrative derivative (PID) controller. PID control allows you to select a particular temperature with ease, enables rapid heat-up for samples, and provides excellent stability to maintain results. Temperatures can be set in 0.1°C increments. Other features include built-in temperature sensing probe, temperature offset function and timer.