Ultra Low Temperature Cryogenic Freezer in response to a growing demand for cryopreservation solutions following medical and scientific advances, such as the increased use of cryopreserved oocytes in IVF and stem cells in transplants. the freezer is suitable for storage of a varieties of biological samples such as viruses, erythrocytes, leukocytes, cutis, skeleton, sperms, oceanic products, special test materials and even electronic products for testing. It can be installed in institutions including blood banks, hospitals, epidemic prevention services, research institutes, and research laboratories.