A measuring system according to the present invention includes a biosensor 29, a measuring device 54 for assaying a specified component in a biological sample applied to the sensor 29, an optional equipment 56 which is removable from the measuring device 54 and announces a measurement result by the measuring device 54 or the like by voice, and a guide 50 for guiding a target to be measured to the sensor 29.According to the so-constructed measuring system, it is possible to remove difficulty of locating operations when a blind person or a person having a weak eyesight attaches/detached the sensor 29 to/from a connector 13 of the measuring device 54 or applies body fluid such as blood of a fingertip to the end of the sensor 29, thereby improving the handling property of the measuring system.
