Both these ranges use metal diaphragms to register pressure. In standard Diaphragm Gauges the metal diaphragm deflects under pressure to provide an analogue reading on the dial.

With Differential Gauges, the difference between two pressures either side of the diaphragm is recorded on an analogue gauge face.

Both ranges are manufactured to extremely close tolerances and fully factory tested before delivery.

DIAPHRAGM PRESSURE GAUGES

DIFFERENTIAL PRESSURE GAUGES