Abstract: A secure refrigerated storage unit is provided. The lockable refrigerated medical storage unit (e.g. refrigerator) is used for the storage of medicines, vaccines or other valuable products that must be stored in the cold. The unit is equipped with compartments with individual temperature and content (e.g. weight) sensors, and the unit is connected to a computerized controller so that the temperature, contents and status (e.g. locked or unlocked) can be continually monitored and tracked. The internal temperature of the compartments is kept constant due to ventilation provided by strategically placed perforations in the compartments and shelves on which they are placed.