Method for Operating a Material Investigation Device, and Material Investigation Device of this Type

A method for operating a hand-held material investigation device includes transmitting a measurement signal into an object under investigation, and acquiring a position of the material investigation device in relation to a surface of the object under investigation in order to determine a material property of a region, concealed behind the surface, of the object under investigation in a space-resolved and/or direction-resolved manner. The method further includes displaying the material property as at least one digital display object with a physical display unit, and displaying additional measurement information with the same at least one digital display object by way of color coding of the at least one digital display object.