Hi David Thanks for ur reply. Infact we 've got anew blood bank with capacity of 336 blood bags of 500ml. the room tem is arround 30-35 C in summers. whwn the dsoor is opened for 2min the temp display shows >8C and at 3min of door opened thetemp display shows >10C . alarm sounds at temp >8*C. Due to the higher room temp the temp of the Blood bank cabinet is expected to rise. but the core temp of the blood bags would probably not be affected. what are the recommendations, the temp display should show the temp of the cabinet or simulated blood bag core temperature. When shold the alrm sound when te core temp goes beyond limit or whenthe cabinet temp goes beyond limit. what are the recommendations for room temp for blood bank refrigerator.