Easy setting program temperature for everyone > User interface that provides a quick view of temperature changes (heating, stability, and cooling) and fan speed. > Set various test conditions using 10 programs and 10 steps, which can be repeated up to 99 times. > Start temperature, temperature and time for each step, and Opti-flowTM are all adjustable as desired. Structural and functional features for improved user convenience > Opti-flow™, a function to flexibly adjust the fan speed according to the specimen type and test conditions. > Stacking Kit (optional) ensures the safe fitting of one unit to another, thus doubling the amount of work done in a given area for improved space efficiency. > Hands-free door system allows users to easily open the door while carrying samples with both hands