Of course ... for that price ... it should not dream ... this is not a Fluke !!! The functions of "base" doing their jobs (as a model at 15 euros) ... but "interesting" function: cable length measurement and research cutoff position: forget !!! the results are outliers and calibration system does not correct the error (200% error ... anyway !!!). Of course I could have back ... but I needed it urgently to its "basic functions" shame for the rest ... because it does not.