An analyser device for analysing chemical, biological or pharmaceutical work probes, the analyser device comprising - a reader module integrated in the analyser device, the reader module configured to reading RFID data in combination with an optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) on a reagent container carrier structure (20, 20'), the reagent container carrier structure (20, 20') comprising an orientation identification label attached thereon, the orientation identification label having a front surface and a back surface, with an RFID assembly positioned on the back surface and the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) on the front surface defining an orientation of the reagent container carrier structure (20, 20'), wherein the optically detectable definition pattern consists of geometrical configuration in contrastive colours allowing identification of an orientation suitable to minimize the risks for false reading by an optical detection device and ensure proper identification by a human operator, the reader module comprising at least one RFID reader which is configured to detect the RFID data from the RFID assembly and at least one optical element which is configured to detect the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5), wherein the reader module is configured to read the RFID data and the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) of the label substantially simultaneously; - a conveyor system for conveying at least one reagent container carrier structure holding at least one reagent container; - a computing device for evaluating optical detection data received from the optical detection device and determining whether the orientation of the at least one carrier structure in the conveyor system is correct, wherein a reagent container carrier structure with a defective or faulty RFID chip or a not correctly inserted reagent container carrier structure is ejected automatically from the analyser device. - a reader module integrated in the analyser device, the reader module configured to reading RFID data in combination with an optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) on a reagent container carrier structure (20, 20'), the reagent container carrier structure (20, 20') comprising an orientation identification label attached thereon, the orientation identification label having a front surface and a back surface, with an RFID assembly positioned on the back surface and the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) on the front surface defining an orientation of the reagent container carrier structure (20, 20'), wherein the optically detectable definition pattern consists of geometrical configuration in contrastive colours allowing identification of an orientation suitable to minimize the risks for false reading by an optical detection device and ensure proper identification by a human operator, the reader module comprising at least one RFID reader which is configured to detect the RFID data from the RFID assembly and at least one optical element which is configured to detect the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5), wherein the reader module is configured to read the RFID data and the optically detectable definition pattern (12.1, 12.2; 12.3, 12.4, 12.5) of the label substantially simultaneously; - a conveyor system for conveying at least one reagent container carrier structure holding at least one reagent container; - a computing device for evaluating optical detection data received from the optical detection device and determining whether the orientation of the at least one carrier structure in the conveyor system is correct,