Industrial M519C Air Pressure Gauge

The M519C air pressure gauge is a 2-1/2 in, liquid-filled gauge rated from 0 to 200 PSI for reliable pressure monitoring in industrial pneumatic systems. It mounts in back mount configuration with a 1/4 in NPT male connection and a male pipe thread (MPT) process connection, and uses a glycerin or silicone liquid fill to dampen vibration in high‑vibration environments such as compressors. The case is typically stainless steel or steel construction, with a lens of polycarbonate or glass, and it offers ±1.5% to ±2.5% full-scale accuracy for compressed air and non-corrosive gases. Its primary function is pressure monitoring and indication, and it is commonly installed in air compressors, pneumatic control panels, process equipment, HVAC systems, and air distribution networks to support maintenance teams, facility operators, and system integrators in monitoring, troubleshooting, and component replacement.