Keithley 2400 Graphical Series SMU instruments offer four-quadrant precision voltage and current source/load coupled with measurement now on an intuitive touchscreen user interface. These instruments can simultaneously source and measure current from 10 fA to 10 A pulse and/or voltage from 100 nV to 1100 V for 1000 W pulse and 100 W DC total power, allowing users to Touch, Test, Invent®.