A reeling box is a tool for measuring, controlling and recording the electrical current of a circuit. It is a valuable asset for preventive maintenance, control and fault finding. Chauvin Arnoux reeling boxes are designed and manufactured to meet the highest industry standards, ensuring durability and accuracy. The features of a Chauvin Arnoux reeling box include: overload protection, true RMS measurements, temperature display, frequency and power analysis, time current curves, automatic recording, and holding facilities. They are both portable and robust, and are used in many industries and applications.