A new family of Rohde & Schwarz power analyzers is now available in three models to meet all requirements for measuring voltage, current, power and total harmonic distortion on both DC and AC sources. The R&S NPA101 power meter provides all basic measurements, the R&S NPA501 power analyzer adds enhanced measurement functions and graphical analysis, and the R&S NPA701 compliance tester includes evaluation functions in line with IEC 62301 and EN 50564 for power consumption and EN 61000-3-2 for EMC harmonic emission testing.