Dual temperature control: The matrix type IoT dual temperature control storage box is made of sprayed steel plate material, which is beautiful and wear-resistant. The temperature control of the refrigeration room is 2-8 ℃, and the temperature control of the freezing room is -20-26 ℃, meeting the needs of small capacity dual temperature control and improving space utilization. Intelligent defrosting ensures stable temperature and long-term safe storage of samples.