The Keysight 34470A 7½ digit, Performance Truevolt DMMs offer higher levels of accuracy, speed and resolution. Truevolt DMM's graphical capabilities such as trend and histogram charts offer more insights quickly. Both models also provide a data logging mode for easier trend analysis and a digitizing mode for capturing transients. The ability to measure very low current, 1 µA range with pA resolution, allows you to make measurements on very low power devices. Auto calibration allows you to compensate for temperature drift so you can maintain measurement accuracy throughout your workday.