Rogowski Coil Current Sensor is a type of differential current sensor that, through integration, can reconstruct the input current. The Rogowski Coil current sensor exhibits no magnetic hysteresis, nearly zero phase error, and no saturation effects. It can measure currents ranging from a few amps to over a thousand amps. Its response frequency bandwidth extends from 0.1Hz to 1MHz. Additionally, the Rogowski Coil current sensor is lightweight and user-friendly.