As an important resource for medical research, more and more hospitals, universities, and research institutes are very interested in biological sample banks and invest a lot of money to build sample banks.However, due to the difficulty of sample storage and the uncertainty of network, many people are concerned about the safety of samples.

In terms of storage requirements, biological samples must maintain the activity of biological molecules and cells during long-term storage,and reduce the biochemical reaction in the sample by keeping the temperature as low as possible, and improve the stability of various components in the sample.At the same time, biological samples are sensitive to temperature fluctuations, so the biological medical cryogenic storage equipment should not only meet the requirements of low temperature, but also achieve accurate control of the storage temperature, so that the temperature is uniform and constant when running steadily for a long time.In view of the technical difficulties of biological sample storage, Meling third-generation ULT freezers are equipped with two independent refrigeration systems. When one system fails, the other system can still run stably and maintain the temperature inside at -80℃, fully guaranteeing the safety of samples. The world's original independent embedded monitoring and intelligent cloud IoT realize the integration of freezers, mobile terminals and PC , monitor samples in real time and further ensure the safety .