Pressure is usually read in units of force per unit of surface area. There are many techniques used to get the correct measurements for pressure and vacuum, and the same can be said about the gauges. Devices used to measure and display pressure are normally referred to as pressure gauges, pressure meters and vacuum gauges and are known as test instruments
. A fine example of such instruments is the manometer which utilizes the surface area and weight of a liquid to measure the atmospheric pressure. The Bourdon is another good example as it measures and indicates the pressure. For everyday pressure measurements
, the pressure is measured and indicated relative to the ambient air pressure. There are other measurements that are made relative to vacuum or other references. Get the best selection off pressure and vacuum gauges at MRO Supply today. We stock gauges in all styles and sizes to suit any application.