Milliohm meters are capable of measuring very small resistances. Devices that use a four-wire Kelvin probe system pass a test current through the probe so that the voltage is sensed by the center pin.

Milliohm Meter PCE-MO 2002. (Milliohm Meter with ruggedized and waterproof carrying case. With highly accurate measurement range) This Milliohm Meter comes with a ...

User [mircemk] presents his “MiliOhm Meter” project which you can build with an Arduino, a handful of common parts from your lab, and a cigar box. It doesn’t get much simpler than this, folks.