This invention refers to a measurement device for a vacuum regulator. A vacuum regulator is a device of the type comprising an entry of a vacuum source, an outlet to a vacuum circuit generally on the patients side and means for regulating the pressure supplied to the vacuum circuit. The measurement device comprises an external vessel (15), an elastic element (16) situated internally to the external vessel (15) and which may be displaced in a linear manner along the same, an impermeable elastic membrane (17) which is displaced solid to the elastic element (16) and which separates the vacuum source to measured from the atmosphere. The invention is characterised by the fact that the elastic element (16) is embedded in the interior of the impermeable elastic membrane (17) in such a way that one of the faces of the elastic membrane (17) is in contact with the vacuum source.
