The Keithley 2401 is a 20W Low Voltage SourceMeter.
1μV–20V and 10pA–1A precision voltage and current sourcing and measurement capabilities
Five instruments in one (IV Source, IVR Measure)
Source and sink (4-quadrant) operation
0.012% basic measure accuracy with 5½-digit resolution
2-, 4-, and 6-wire remote V-source and measure sensing... Read more...