A retail unit comprising: a display module capable of accommodating one or more retail items; a housing structure for housing the display module, the housing structure defining an access opening configured to enable insertion and removal of the one or more retail items in the display module; a door module comprising a hinge mechanism positioned on a peripheral portion of the access opening so as to define a pivot axis on a door panel configured to pivot about the pivot axis of the door panel, away from the access opening of the display module; an imaging module coupled to the door module, the imaging module comprising a first and a second imaging sensor configured to acquire images of access opening of the display module; wherein the first and the second imaging sensors (41, 42) are positioned in a peripheral portion on the side of the door panel, opposite the pivot axis, and wherein the retail unit further comprises a processor module connected to the imaging sensors (41, 42), the processor module being configured to: - receive the images acquired by the imaging sensors (41, 42) - perform image processing to detect a change between two successive images received from a same imaging sensor of the first and second imaging sensor (41, 42) to detect opening and closing of the door module panel, characterized in that the processor module is further configured to: - stitch images received by different imaging sensors at the same instant to increase the field of view (411, 412) and allow reconstructing complete images of the access opening; and - communicate data associated with the processed images to a remote control center. a display module capable of accommodating one or more retail items; a housing structure for housing the display module, the housing structure defining an access opening configured to enable insertion and removal of the one or more retail items in the display module; a door module comprising a hinge mechanism positioned on a peripheral portion of the access opening so as to define a pivot axis on a door panel configured to pivot about the pivot axis of the door panel, away from the access opening of the display module; an imaging module coupled to the door module, the imaging module comprising a first and a second imaging sensor configured to acquire images of access opening of the display module; wherein the first and the second imaging sensors (41, 42) are positioned in a peripheral portion on the side of the door panel, opposite the pivot axis, and wherein the retail unit further comprises a processor module connected to the imaging sensors (41, 42), the processor module being configured to: - receive the images acquired by the imaging sensors (41, 42) - perform image processing to detect a change between two successive images received from a same imaging sensor of the first and second imaging sensor (41, 42) to detect opening and closing of the door module panel, characterized in that the processor module is further configured to: - stitch images received by different imaging sensors at the same instant to increase the field of view (411, 412) and allow reconstructing complete images of the access opening; and - communicate data associated with the processed images to a remote control center. - receive the images acquired by the imaging sensors (41, 42) - perform image processing to detect a change between two successive images received from a same imaging sensor of the first and second imaging sensor (41, 42) to detect opening and closing of the door module panel, characterized in that the processor module is further configured to: - stitch images received by different imaging sensors at the same instant to increase the field of view (411, 412) and allow reconstructing complete images of the access opening; and - communicate data associated with the processed images to a remote control center.