Profile: Rocoil specializes in providing rigid and flexible coils. We offer Rogowski coil current transducers, that can measure alternating currents in a frequency range from less than 0.1Hz to about 1MHz. We also provide active & passive integrators, practical & three-channel integrators and OEM integrator. Our practical integrators can be supplied in various forms, on a PCB for OEM use, as simple one-channel battery powered units, as three-channel mains-powered units or as multiple rack-mounted units.