Key benefits - Measures AC voltage and energy consumption to help you monitor usage, identify waste, and manage costs. - Durable construction provides reliable protection for the unit and supports stable, long-term operation. - Easy installation enables quick setup and convenient use without complex wiring. - Versatile across multiple settings, suitable for home, school, market, and industrial environments. A few practical use scenarios - Home energy monitoring: track the power draw of appliances such as refrigerators, air conditioners, and entertainment systems to optimize electricity use. - Education and demonstrations: show real-time AC voltage and energy measurements in classroom experiments or lab exercises. - Small business or shop efficiency: monitor lighting, POS terminals, and miscellaneous equipment to improve energy efficiency and cost control. This device focuses on accurate voltage and energy usage measurement, reliable protection, simple setup, and broad applicability, aligning with everyday needs in residential, educational, commercial, and industrial contexts.