In terms of pressure, the integrated temperature and pressure sensor series is packaged by pressure chips from internationally renowned manufacturers. The external pressure is transmitted to the sensitive components through 316L stainless steel diaphragm and internal filling silicone oil, which can be used to measure all pressure media compatible with 316L stainless steel. In terms of temperature, we have buried a high-precision PT100 platinum resistance in the stainless steel pedestal, and potting the thermal adhesive at the gap between the platinum resistance and the stainless steel casing, greatly reducing the temperature conduction hysteresis when the platinum resistance is not in direct contact with the medium.