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What's a frequency counter? It is an electronic test instrument especially made for signal frequency measuring and is mainly composed of a time base circuit, input circuit, frequency display circuit and control circuit.

Digital multimeters are electronic test instruments with versatile usage, forms and types which may be more than other kinds of instruments.

Times changing make many systems also have big changes accordingly, while it needs more and more advanced techniques to support.

A digital multimeter (DMM) is an electronic instrument used for electrical measurement. It can have many special functions like math function and temperature, but the main function is to measure electrical parameters such as voltage, current, resistance and continuity.

?For the quick check and analysis of Spectral Characteristic ?EMC pretest ?Analysis and test of characteristics various signals ?Test systems that requires a very compact instrument ?Measure the frequency response of cable, attenuator, filter and amplifier

Crest factor (CF) is defined as the ratio of the peak amplitude of a waveform to its RMS value.