• GO FROM 4 INSTRUMENTS TO 1 SOURCE MEASURE UNIT Watch the video to see how a Keithley source measure unit (SMU) tightly integrates a power supply, digital multimeter (DMM), electronic load, and current source. Learn more about common DC measurements that require source and measure >   A SMU = DMM + Power Supply + Electronic Load + Current Source. DOWNLOAD YOUR MEASUREMENT KITS TO LEARN MORE ABOUT THESE COMMON DC MEASUREMENTS. And source and measure current a...