Reliability Lockable lid is optional to prevent unauthorized open. Five years vacuum warranty. Safety It can be equipped with liquid level monitor to monitor the liquid level height in real time and send out low level sound and light alarm. Key Features Durable aluminum structure. Large capacity and low liquid nitrogen consumption. Designed for long-term storage, it is easy to take and place samples. Application 01 / VERSION.2023 Matching freezing shelves and freezing boxes, quickly and effectively finding the required samples. Optional transport vehicle. It is used in hospitals, cell laboratories, stem cell banks, etc. that require long-term storage of biological samples and frequent sample extraction