PROBLEM TO BE SOLVED: To secure convenience of a user and allow the user to wipe off contamination of an entire sensor unit without touching the sensor unit in a body moisture meter for measuring a moisture content in a subjects body.SOLUTION: A body moisture meter includes: a body that measures data relating to a moisture content in a living body by bringing a sensor unit into contact with a body surface of a subject, and calculates a body moisture content of the subject on the basis of data measured by the sensor unit and a cover member mounted on the body to cover the sensor unit. The cover member has a wiping member that, when being mounted on the body, comes into contact with a surface of the sensor unit that is brought into contact with the body surface of the subject, and is movable to slide on the surface of the sensor unit, and an operating device, when the cover member is mounted thereon, slides the wiping member by an operation from the outside of the cover member.COPYRIGHT: (C)2013,JPO&INPIT【課題】 被検者の体内水分量を測定する体内水分計において、ユーザの利便性を確保しつつ、ユーザがセンサ部に触れることなく、センサ部全体の汚れを拭き取ること。【解決手段】 体内水分計であって、センサ部を被検者の体表面に接触させることで生体中の水分に関するデータを測定し、前記センサ部により測定されたデータに基づいて、前記被検者の体内水分量を算出する本体と、前記センサ部を覆うように前記本体に装着されるカバー部材と、を備え、前記カバー部材は、前記装着した場合に前記センサ部の前記被検者の体表面に接触させる面と当接し、前記センサ部の該面上を摺動するように動作可能な拭き取り部材と、前記カバー部材が装着されているとき、前記カバー部材の外側からの操作により前記拭き取り部材を前記摺動させる動作装置と、を有することを特徴とする。【選択図】 図2