The spray gun pressure regulator is used at the air inlet joint of the air gun, making it easy to install and remove. The inlet pressure is monitored in real time, and the data can be adjusted and read. Use it for better spray painting results. The spray gun pressure gauge is easy to install and maintain, and very convenient. The air pressure can be adjusted as needed using the valve knob. Saves electricity. The pressure regulator's adjustment range is 0-10 BAR (0-150 PSI). With higher sensitivity and good selectivity, it is less prone to malfunctions. The spray gun pressure gauge is compact, flexible, and lightweight. Due to its robust housing and excellent performance, it is not subject to wear or deformation. This tool is an extremely necessary component for measuring airflow. The G1/4" threaded port of the air compressor can be used with the spray gun for displaying, adjusting, and controlling pressure. Using this spray gun pressure gauge can greatly simplify your work.