3 version of the Thermocycler compact. They ball have a colored touch screen and the graphical user interface that the Thermocycler is well known for. Temperature programs can be stored in directories that can optionally be protected by PASSWORDS up to 64 individual users. Programs can be copied between the Thermocycler compact and the bigger Thermocyclers Basic & gradient. There are temperature & time. Thermal cyclers may also be used in laboratories to facilitate other temperature-sensitive reactions, including but not limited to restriction enzyme digestion or rapid diagnostics.