Rogowski coils are air core flexible current transducers that draw no power from the circuit carrying the current to be measured. The absence of a magnetic core allows a wide frequency response allowing for the measurement of harmonic content and transients. Due to its design the Rogowski coil is flexible making it ideal to install in areas that are difficult to reach or in panels where it is not practical to bulkhead-mount a traditional current sensor. Available in standard lengths of 24, 36, 48 and 72 inches. Single and multi-channel signal integrators are also available for the MFC150 Series coils.