Temperature control: Adopt microcomputer control system, temperature digital display, to ensure accurate and stable operation of the excellent refrigeration layout, the temperature inside the box is stable within the range of -10 ℃ ~ -25 ℃ C precise electronic temperature control, accuracy of 0.1 ° C Refrigeration system: International famous brand compressor, environmentally friendly and efficient hydrocarbon refrigerant, refrigeration speed, high refrigeration efficiency, low power consumption evaporator adopts heat transfer efficient copper tubes, pre-buried in the wall of the inner box, to conduction refrigeration, saving the internal space Internationally renowned brand of condensing fan, energy saving and efficient, mute, reliable performance high-density heat preservation foam layer using environmentally friendly cyclopentane blowing agent, good heat preservation effect Safety System: Power failure protection: refrigerator delay start function, to avoid the power grid to restore power supply at the same time when multiple devices start resulting in circuit breaker protection with high and low temperature inside the box alarm, sensor failure alarm, power failure alarm (support for 8 hours), open and close the door abnormal alarm function thermostat measurement point failure safe operation mode (display sensor and control sensor for each other as a backup) Password protection function to prevent arbitrary adjustment of operating parameters With sound beeping and light flashing dual alarm mode.