Certified Energy Auditor Practice Exam 2025 – All-in-One Resource to Achieve Exam Success!

The power meter is a specialized instrument designed to measure the electrical consumption of appliances and systems by quantifying the amount of electricity used over a specific period. This tool provides vital information, such as the voltage, current, and power factor, allowing for an understanding of energy usage and efficiency. Power meters can be used for both residential and industrial applications, making them essential for energy audits and management.

In contrast, a thermometer measures temperature, and a hygrometer assesses humidity levels. These tools serve different aspects of environmental monitoring but do not provide insights into electrical consumption. A volt meter, while useful for measuring the voltage in an electrical system, does not directly measure total energy consumption; it only indicates the electrical potential difference. This distinction highlights why the power meter is the appropriate choice for assessing electrical consumption.