A split core current sensor is a device used to measure the current flowing through a circuit. It is typically used in industrial and commercial applications to monitor the amount of current being used by an electrical system. The sensor works by splitting the circuit into two parts, with one part being the primary and the other being the secondary. The primary part is connected to the circuit, while the secondary part is connected to the current sensor. The current sensor then measures the current flowing through the circuit and sends the data to a monitoring system. Split core current sensors are an important tool for ensuring the safety of electrical systems, as they allow for quick and accurate monitoring of current levels. They are also useful for detecting any abnormalities in the current flow, which can indicate a potential problem with the system. Split core current sensors are easy to install and can be used in a variety of applications, making them a popular choice for many businesses.