VS521 Series are BOD Incubators intended to suit different tests and storage needs in laboratories at temperatures below ambient. Utilized for Biological Oxygen Demand tests, sensitive cultures, vaccines, culture of bacteria, Serum incubation, microorganism, seed germination etc. It works with CFC free refrigerant and hermetically fixed compressor. An auto tuneable microcontroller with PID logic gives accurate cooling and heating conditions inside the chamber. It has a clear view glass inner door. Motorized blower creates air re-flow system which ensures uniform temperature inside the chamber. Polyurethane is utilized for efficient insulation.