Sigma pressure gauge is a tool for measuring the condition of a fluid (liquid or gas), as it is specified by the force that the fluid would apply, when at rest, on a unit area. The high-pressure gauges are color-coded red.

 50mm dial plate, double scale for bar/psi measurement. Clear number markings for convenient and easy readings. Metal outer case, well protect the inner accessories. Mini size, convenient to carry. Connection: 1/4″ brass thread side mount.