The regulation with portable units is used in applications where the need for regulating the heaters at different positions in the process occurs (e.g. regulation of the spray nozzles on the tools). The regulating unit can contain several regulating areas (1-12 areas or according to the customer's wishes). The connection between the elements (heaters and temperature sensors) is carried out via dedicated connectors. In this case, the customer only takes care of the connection to the power grid via the appropriate plug (schuko, CEE, etc.).