A Seeed Studio Electricity Sensor is a highly integrated sensing device for measuring electrical parameters such as voltage, current, power, power factor, frequency, and reactive power. It is suitable for monitoring the power of industrial equipment, solar-wind energy generation systems, battery management systems, and process control systems. The sensor utilizes a single-chip STM32F030 processor. It also has an isolated high-resolution ADC converter, which ensures excellent accuracy and high-speed real-time sampling. Additionally, the sensor has several communication protocols such as RS232, RS485, and CAN bus, allowing it to be connected to and communicate with other systems in an easy manner.