Designed for cold chain storage scenarios of biological samples such as liquid nitrogen tanks and ultra-low temperature freezers, the super low-temperature sensor continuously collects temperature data within a wide temperature range of -200℃ to 40℃. It accurately monitors the environmental conditions of cryo-preserved assets including biological samples, reagents and stem cells, and transmits temperature information to the monitoring platform in real time. Alarms will be automatically triggered upon temperature anomalies to safeguard precious biological samples. It is widely deployed in hospital clinical laboratories, biobanks, pharmaceutical R&D laboratories and other settings.