can someone recommend a really TRUE RMS meter?

I have a very noisy square pulse wave that I'm trying to measure the
RMS current and RMS votlage of... my pulses can have up to 24 volt
peaks.  and a frequency of 1kHz.... I was wondering if anyone could
reccomend a Multi-Meter for doing these measurements, or do I need to
use a Scope?

From what I've gathered in trying to find a meter is that meters are
made for Sinusoids, and True RMS isn't always very true... this
article was interesting http://www.enginova.com/true_rms_volts.htm
.
And since there is noise on my signal, I'd have different spikes and
things happening that would be beyond my fundamental frequency of
1kHz, and I don't know what a multi-meter does with that.

I've heard some meters assume that your signal is centerd around the
zero-axis and therefore return bad results, I've heard other meters do
internal calculations assuming a sinusoid, and give erroneous
results.... anyone have any suggestions?



Much thanks to all who participate in this forum, great source of
information
appreciate the help