| abstract |
A breath component measuring device has: a guide hole in which breath of a subject flows; a sensor which measures an alcohol concentration contained in the breath; an attachment portion to which a mouthpiece which allows the breath of the subject to flow in the guide hole is detachably attached; an owner information reading unit which, when the mouthpiece is attached to the attachment portion, reads owner information which indicates an owner of the mouthpiece, from the mouthpiece; and a processing unit which associates information about the alcohol concentration measured by the sensor and subject information which is the owner information or subject information which corresponds to the owner information, and stores or outputs the information about the alcohol concentration and the subject information. A mouthpiece has a memory device which can store owner information which indicates an owner. |