+A vacuum gauge measures the absolute [Pressure](/wiki/pressure) in a [Vacuum](/wiki/vacuum), quantifying the emptiness of a contained space. These instruments employ various principles, from mechanical deformation to ionization, to sense pressures across a wide spectrum.
+## See also
+- [Manometer](/wiki/manometer)
+- [Sensor](/wiki/sensor)
+- [Vacuum Pump](/wiki/vacuum_pump)
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