What is the main advantage of a digital voltmeter over an analog meter?

The main advantage of a digital voltmeter over an analog meter lies in its ability to provide more accuracy in measurements. Digital voltmeters display readings in a numerical format, which minimizes the chances of human error when interpreting the results. This precise readout allows for finer resolution and less uncertainty in measurements, making digital meters more effective for applications where accuracy is critical.

For example, digital voltmeters can often measure to several decimal places, which is essential when working with small voltage levels or when high precision is required. In contrast, analog meters use a needle and scale, which can introduce parallax errors when determining the exact measurement, especially if the viewing angle is not optimal.

While other considerations such as fragility, input impedance, and battery consumption are relevant in choosing measurement tools, accuracy stands out as the primary advantage that digital voltmeters offer, enabling technicians to work with greater confidence in their measurements.