A Differential Pressure Gauge measures the pressure difference between two points in a unit. The gauge has an analog display with a pointer to indicate the pressure difference. When pressure is applied to both sides of the gauge, the mechanism inside responds to the difference in pressure. This movement is translated into a reading on the dial, providing the user with the pressure variance between the two points.Attributes:• Provided with a range of up to 12 kPa [50 inches water (H2O)], as well as either 12 kPa (1.74 PSI) pressure or vacuum• Provided with an operating temperature range of -60 degrees Celsius to 60 degrees CelsiusApplications:A Differential Pressure Gauge provides accurate measurement of small pressure differentials, for maintaining safe operating conditions and proper functioning.