A walk-in vaccine cold room maintains a temperature range of -5℃ to 8℃ and is used to store various vaccines that cannot be preserved at ambient temperatures. Low-temperature conditions help maintain vaccine potency and extend shelf life. The refrigeration control system is designed with an automatic microcomputer-based electrical control system, featuring an intelligent temperature controller, high-precision temperature sensors, automatic alarms, and a digital temperature display. Equipped with a temperature and humidity recorder, and requiring no manual operation, Jindal vaccine cold rooms ensure maximum safety for vaccine storage.