Pressure gauges

thumb|An analog barometer

A sphygmomanometer ( ), also known as a blood pressure monitor, blood pressure machine, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure the pressure. Manual sphygmomanometers are used with a stethoscope when using the auscultatory technique.

gauge that indicates the depth underwater, primarily used by divers and on submarines

technique to measure pressure

thermal conductivity gauge

Type of measuring device

device for measuring stagnation pressure or stagnation temperature in fluid dynamics

thumb|Tower of the Winds, Athens 2nd century BCE. A bronze Triton once served as a weather-vane but has vanished.