In order to easily identify a specimen to be extracted because, for example, an item remains uninspected, from a rack 31 collected in a storage part 13 or the rack 31 taken out from the storage part, a camera of a smart device takes an image of the rack; and a calculation unit included in the smart device provides a mark, by AR technology, at the position of a specimen to be extracted. For example, the item that remains uninspected is identified on the basis of information about a combination of a rack ID and an identifier and information, which is received from an operation unit about specimens at respective positions. Thus, irrespective of a place or whether the specimen to be extracted is inside or outside of the device, the specimen to be extracted can be reliably specified from a plurality of specimen containers provided on a holder.