A low-pressure manometer for CO2 and a pressure regulator for Ar/Mix is a must-have device for welding systems that require precise monitoring and regulation of gas pressure. This pressure gauge provides accurate measurement of low pressure in gas systems feeding welders, which is crucial for maintaining optimal working conditions during welding. The built-in pressure regulator makes it easy to adjust the gas pressure to meet the requirements of a specific welding process. This allows users to maintain a stable gas flow, which affects weld quality and productivity.