A digital current sensor is a device that measures the amount of electric current in a circuit. It is typically used to monitor and control the current in a system. The digital current sensor works by measuring the voltage drop across a resistor in the circuit. This voltage drop is then converted into a digital signal that can be read by a computer or other device. The digital current sensor can be used to measure both AC and DC currents. It is an important tool for monitoring and controlling the current in a system, as it can provide a reliable and accurate reading of the current. The digital current sensor is also used in a variety of applications, such as in automotive, industrial, and medical systems. It is a versatile and reliable device that can be used to measure and control the current in a system.