For time-varying signals, the oscilloscope is the most important measuring instrument. In addition to the basic capability of reading time and voltage parameters—which, although with greater difficulty, was also possible with analog instruments—digital oscilloscopes perform more advanced data processing as well.

A climate or temperature chamber is a device designed to simulate controlled environmental conditions. It allows the temperature and, if necessary, the humidity to be precisely set and maintained over the long term.

Testing modern electronic systems today is much more than simply recording data. Engineers must reliably simulate real-world conditions, generate custom test signals, and simulate boundary situations.