The CS 675 Series current sensors monitor line current for electrical loads such as pumps, conveyors, machine tools, or fans and output an analog signal to represent the load current. The CS675 is loop-powered and requires a 15 to 30 Vdc to power the device The CS-675 Series features true RMS current measurement and are suitable to measure complex waveforms such as those found in VFD controlled loads. They are also suitable for accurate measurement of phase angled controlled or time proportional SCR controlled load current. The CS-675 Series contain a precision RMS-to-DC converter circuit which will measure load current accurately for complex, distorted or noisy waveforms as opposed to “average reading” devices that will only measure pure sine waveforms accurately.