What type of gauge is most widely used in modern instrumentation?

Digital gauges are the most widely used in modern instrumentation due to their accuracy, ease of reading, and capability to display measurements in various formats. They utilize digital displays, which eliminate the ambiguity that can come with analog gauges that require interpretation of a needle's position on a dial. Furthermore, digital gauges often include features such as data logging, programmable alarms, and statistical analysis, making them suitable for a range of applications in monitoring and controlling water distribution systems.

Analog gauges, while still in use, do not offer the same level of precision and functional capabilities as digital gauges. Pressure gauges and hydraulic gauges, though common in specific contexts, refer to particular functions rather than being a general type of gauge used across various applications, further highlighting the broader applicability of digital gauges in contemporary settings.