These powerful tools measure time-varying signals, which you will be able to see by the wave shape. They have the capacity to measure the frequency of the signal, as well as the peak value of the signal. Whenever you have a signal that varies, this tool is the one that you are going to want to use to measure it. The basic use of this type of scope is relatively simple. After plugging in the machine, you will turn it on, attach your input terminals, apply the signal, and make sure that the settings are going to match.
It seems easy, but it will still take some actual training on the device to understand how to use it and measure properly.