Multimeters are one of the necessary instruments for hardware engineers, they can measure voltage, current, resistance, capacitance, diode, etc.

Nowadays many brands of rf signal generator are existing in the market, it will make double results with half work by selecting a suitable product in your test and measuring work.

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.