Knowledge
Welcome to the SJ Gauge Knowledge Center, featuring technical articles and application insights on pressure gauges, thermometers, diaphragm seals, smart transmitters, and industrial measurement instruments.
From selection guides and installation tips to real-world application experiences, we help improve measurement stability, equipment reliability, and overall process efficiency.
Simple Steps to Distinguish Gauge Pressure and Absolute Pressure
Do you know the difference between absolute pressure and gauge pressure? What do positive and negative pressures mean?