The present invention relates to a flush -, sterile isat and usat ion - or automatic washing machine, in particular, - a cleaning and disinfection apparatus for medical instruments, with a a treatment chamber (3) - flushing providing, sterile isat and usat ion - or washing tank (2), the means of a door (6) in a fluid-tight manner closable loading opening (5), and having a detection system (8) for the automatic detection of in the treatment chamber (3) when the material to be treated (4), wherein the detection system (8) a in the treatment chamber (3) which can be arranged, which can be read out in a contactless electronic identifier (9) as well as a reading unit (10), wherein said reading unit (10) to be movable relative to the treatment chamber (3) is arranged.
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