This is a hand held scope meter by Protek and Unisource Corporation. The most frequent uses of osciloscopes is troubleshooting malfunctioning electronic equipment. One of the advantages of a oscilloscope is that it can graphically show signals: where a voltmeter may show a totally unexpected voltage, a scope may reveal that the circuit is oscillating. An oscilloscope allows signal voltages to be viewed, usually as a two-dimensional graph of one or more electrical potential differences (vertical axis) plotted as a function of time or of some other voltage (horizontal axis).
Extech MS400 Digital Oscilloscope 20MHz has an Auto-set function that optimizes the position, range, timebase, and triggering to assure a stable display of virtually any waveform. The digital oscilloscope provides Five Automatic Measurements: Frequency, Cycle, Average, Peak to Peak, RMS.
Protek 820F 20 MHz Hand Held Digital Oscilloscope with Flash Port is a Protek 20MHz Hand-Held DSO-DMM. This Protek oscilloscope has USB Flash Memory as well as self test and self calibration.
