A device (10) for determining an analyte concentration of a fluid sample using a test sensor, the device comprising: a presentation device (12) adapted to present information to a user； a body part (14) that includes at least one opening (16) formed therein, at least said opening (16) being of sufficient size to receive the test sensor； a detector (24) near at least said opening (16), the detector (24) being adapted to detect if at least said opening (16) includes a test sensor； a memory (19) adapted to store a plurality of stored analyte concentrations； at least one user interface mechanism (18) positioned on the body part (14), at least said user interface mechanism (18) including at least one of a button, a scroll wheel, or a touch screen , the user interface mechanism being configured to allow the user to interact with the device (10) to present information relating to an assay procedure and at least one of the plurality of analyte concentrations stored in the display device (12) ； and a processor (26), characterized in that the processor (26) includes a processing feature configured to prevent stored analyte concentrations from being presented in the display device (12) during the test procedure by deactivating at least said mechanism ( 18) of user interface and presenting only analyte concentration information associated with a current analyte concentration during the test procedure, wherein the processing characteristic is selectively activated, wherein the processing characteristic is configured to be activated when the minus said opening (16) includes a test sensor.Un dispositivo (10) para determinar una concentración de analito de una muestra de fluido utilizando un sensor de ensayo, comprendiendo el dispositivo: un dispositivo de presentación (12) adaptado para presentar información a un usuario； una parte (14) de cuerpo que incluye al menos una abertura (16) formada en él, siendo al menos dicha abertura (16) de tamaño suficiente para recibir el sensor de
