According to the dictionary the measuring device has a different word in German. (There are a few different ones, depending on the type.)
It will not allow me to send a report (maybe cause I have already reported one thing already in the section I am doing) but its making me wrong for giving the answer "One metre" . I see someone else complained about this 2 years ago and it has not been fixed. Australians use "metre" and not "meter"