> I am looking for an instrument to accurately measure a resistance of 100
> uOhms. This instrument will be used in a setup to trim large current
> shunts from 100uOhms -5% to 100 uOhms - 0.25%. Budget is < 2k USD. I have
> seen several options (Agilent, Keithley), but most are too expensive or too
> versatile (I only need to measure low Ohmic values).

If 1 mOhm meter can be any good, then you may want to visit:
<http://www.mwinstruments.com/MW1008/MW1008_f.html>

or in US:
<http://www.m3electronix.com/lcr.html>

They are the same item, I got mine as kits.  The AS4002 is quite 
interesting too.

PS:no relationship with either of them, just a happy customer

Cheers, Ling SM
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