S K Y M I C O M P U T E R Hello there! Here, we have a Simple-but-Very-Exhausting-To-Be-Made product. It is an oscilloscope DID YOU KNOW? An oscilloscope, previously called an oscillograph, and informally known as a scope or o-scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that graphically displays varying signal voltages. this oscilloscope displays the loudness of the surrounding of this area.