This vacuum degree module serves as the core front-end acquisition unit of the Refrigerator Vacuum Detection and Quality Monitoring System (RVQMS). Equipped with built-in high-precision pressure and temperature sensors, it uploads data in real-time via LoRa wireless technology. Its compact and robust design allows direct placement inside refrigerator drawers, enabling continuous monitoring during the evacuation and pressure holding stages of production, thus providing an accurate and reliable data foundation for quality assessment and traceability.