This type of precision pressure gauge is equipped with a zero-adjustment function, allowing users to adjust the zero point before calibration or use. It is mainly used for calibrating general industrial pressure gauges and can also be used for accurate on-site measurement of the pressure of non-crystallizing, non-solidifying media that are non-corrosive to copper alloys, structural copper alloys, and other compatible materials. The gauge features a mirror ring beneath the scale markings, allowing clearer and more accurate readings. Its elastic pressure-sensing element undergoes special processing to ensure stable and reliable performance. Combined with a high-precision transmission mechanism and careful calibration, it ensures accurate pressure indication.