... their effectiveness when stored above the maximum temperature recommended for the medicine. Some medicines can change their form ... This product has many ways to supply power: 220V AC power for household, automotive 12V power supply, 7.4V battery, ... (interchangeable between Celsius °Cand°FFahrenheit) , antifreeze function. Suitable for storage of medicines: 1 Biological drugs-Albumin, HBIG, vaccine Etc ...