The circuit diagram of this meter shows a clear and complex circuit connection. The blue and red colors indicate the connection path of the circuit, helping people understand the direction and path of current flow. By observing the circuit diagram, we can visually see the internal structure of the meter, including components such as resistors, capacitors, and current coils. This design allows people to better understand the working principle and internal structure of electric meters, providing convenience for maintenance and repair. The overall circuit diagram design is concise and clear, providing intuitive information display and guidance for the use and management of electricity meters.