Arrangement for inspecting an object, in particular a structure, comprising a mobile measuring unit for determining a measured value assigned to the object by a user on site, the measuring unit having an interface for exchanging data with further units (12, 14-17) of the arrangement, in particular a base unit (3; 12), a, in particular mobile, base unit (3; 12) in which data records transmitted by the measuring unit can be stored and preferably visually displayed and which has an interface for data exchange with further units of the arrangement, in particular at least the mobile measuring unit, and a proprietary or public network, a detection means for detecting a measurement position at which the measured value is determined, wherein a measured value determined by the measuring unit at least together with a measuring position detected by the detection means can be transmitted, preferably automatically, as a data record to the base unit (3; 12), and wherein the mobile measuring unit is designed for the non-destructive determination of measured values relating to an internal structure and/or an internal state of, in particular inaccessible, elements of the object, in particular structural elements of the structure, wherein the interface of the base unit is designed for connection to a public or proprietary external network and the arrangement comprises a server, to which the base unit is connected or can be connected for data exchange via the public or proprietary network, wherein the server is accessible to an authorised user via a, preferably public, network, wherein the server comprises at least one stored data structure which is assigned to the object to be inspected, wherein the server is designed to supplement the data structure with data transmitted by the base unit and to make it available to the user on site, wherein the server is designed to provide the user on site with a virtually accessible three-dimensional model of the object to be inspected, in particular in real time, wherein the data structure as well as the virtual model based thereon can be continuously enriched by the server with the data transmitted by the base unit on internal structures and/or an internal state of the components of the measuring unit of the object, wherein an interaction of the user on site with the virtual model is achievable, wherein the internal structures are visibly represented in the virtual model through semi-transparent walls, characterised in that the measurement positions in the virtual model can be marked and formed as a reference, so that the desired information on an internal state and/or an internal structure can be retrieved upon corresponding action of the user. a mobile measuring unit for determining a measured value assigned to the object by a user on site, the measuring unit having an interface for exchanging data with further units (12, 14-17) of the arrangement, in particular a base unit (3; 12), a, in particular mobile, base unit (3; 12) in which data records transmitted by the measuring unit can be stored and preferably visually displayed and which has an interface for data exchange with further units of the arrangement, in particular at least the mobile measuring unit, and a proprietary or public network, a detection means for detecting a measurement position at which the measured value is determined, wherein a measured value determined by the measuring unit at least together with a measuring position detected by the detection means can be transmitted, preferably automatically, as a data record to the base unit (3; 12), and wherein the mobile measuring unit is designed for the non-destructive determination of measured values relating to an internal structure and/or an internal state of, in particular inaccessible, elements of the object, in particular structural elements of the structure, wherein the interface of the base unit is designed for connection to a public or proprietary external network and the arrangement comprises a server, to which the base unit is connected or can be connected for data exchange via the public or proprietary network, wherein the server is accessible to an authorised user via a, preferably public, network, wherein the server comprises at least one stored data structure which is assigned to the object to be inspected, wherein the server is designed to supplement the data structure with data transmitted by the base unit and to make it available to the user on site, wherein the server is designed to provide the user on site with a virtually accessible three-dimensional model of the object to be inspected, in particular in real time, wherein the data structure as well as the virtual model based thereon can be continuously enriched by the server with the data transmitted by the base unit on internal structures and/or an internal state of the components of the measuring unit of the object, wherein an interaction of the user on site with the virtual model is achievable, wherein the internal structures are visibly represented in the virtual model through semi-transparent walls, characterised in that the measurement positions in the virtual model can be marked and formed as a reference, so that the desired information on an internal state and/or an internal structure can be retrieved upon corresponding action of the user.