A Voltage Meter is an electronic instrument designed to measure AC or DC voltage in electrical circuits accurately. It provides real-time readings, high precision, and electrical isolation to ensure safe and reliable measurement. Voltage meters are widely used in industrial automation, power distribution, energy monitoring, laboratories, and electronic testing. They can display voltage directly or transmit data to control systems such as PLCs or SCADA for monitoring and analysis. Compact, robust, and easy to integrate, voltage meters play a critical role in fault detection, system optimization, and safe operation, making them essential tools for modern electrical and industrial applications.