The EL-Piast company, together with the Bolarus company, has developed a control and maintenance system for constant storage conditions in laboratory cabinets and refrigerators for the storage of vaccines and drugs. Especially for the storage of the COVID-19 vaccine (for Pfizer and BioNTech.) Where the required storage temperature is in the range of -70 ° C ± 10 ° C (Source: Pfizer). The SLN laboratory cabinet / refrigerator works even in a wider temperature range from -56 ° to -86 ° C.