Specialized system penetrant inspection, serving for processing of indicator fluid and process solutions inaccessible zones and hidden machine cavities mechanisms, followed by visual detection of defects through the endoscope, used in industry and the economy, together with endoscopic equipment at the control: cast and machined machinery parts, units in the collection, in order to detect invisible to the naked eye or slabovidimyh material defects such as discontinuities, onto the test surface