It very much depends on the guts of the meter what it will indicate. &quot;Something&quot; is not a very scientific measure :)<p>The biggest factor are the ways in which the sample is taken and what kind of algorithm (if any...) is used to determine RMS. Simple meters simply rectify the AC current, add a small capacitor and a resistor to drain it and measure the DC voltage across the resistor. More advanced meters will use an isolation stage with a pre-amp driven from the auto ranger that will present the wave-form in one piece and suitably scaled to a DA stage where the sampling will take place. This allows for pretty good determination of the actual voltage (which in the case of AC has been agreed upon as root-mean-square, whereas, if the circuitry is bunk could easily become &#x27;peak&#x27; or even &#x27;nonsense&#x27;).<p>Anyway, we&#x27;re all in violent agreement that this measurement is bogus and since that is all the quantitative info there is I&#x27;ll let it go here.