Lutron MO-2014 Micro-Ohm Meter

LUTRON MILLIOHM METER
4 terminal devices for accurate measurement of very low resistance.
Ideal for measuring the resistance of components precisely.
Ideal for testing protective conductors, lightning conductors, and welded points.
The maximum test current is 10A ( 60000uΩ range only ).
Wide measuring range, 1 uΩ - 6K Ω, 6 ranges.
Operating Temp. 0 to 50℃ ( 32 to 122℉ )
Operating Humidity Less than 80 % R.H
Power Supply DC 1.5 V, AA (UM-3)Battery X 8 PC
AC to DC 9V Power adapter
Two working modes: Resistive and Inductive.
Good / Fail set-function for input quality control.
Built-in in buzzer sound (GOOD STATUS) to assist with Q.C. testing.
"CALCULATE" function to measure cable/wire length.
Built-in over input protection.
4 wires with 2 Kelvin clips included. 
RS232/USB interface
DCV Power Supply: via AC/DC adapter, 90-260 ACV/DC