CR Magnetics Inc. manufactures a line of precision analog and digital transducers that includes: split core current transducers, various AC current transducers (loop-powered, true RMS), DC Hall effect current transducers, DC voltage transducers, AC/DC Hall effect current transducers, AC power transducers, power factor transducers, frequency transducers, digital current transducers, digital voltage transducers, and multi-function digital transducers.

Yokogawa Corp of America manufactures plastic case miniature transducers, current transformers with 5 amp secondaries, 0.5 class transducer for power application, AC voltage and current transducers, combination watt/VAR 0.5 transducers, AC combined watt/VAR transducers, VAR transducers, AC watt transducers, power factor transducers, phase angle transducers, and frequency transducers.

Flex-Core manufactures various current transducers, voltage transducers, watt transducers, watt hour transducers, VAR transducers, frequency transducers, phase angle transducers, and power factor transducers.

Ohio Semitronics manufactures a line of transducer types including: current, voltage, watt and watt-hours, frequency, phase angle, power factor, signal conditioners, VAR, multi-function power measurement, and process signal conditioner.

American Aerospace Controls Inc. manufactures bi-directional current transducers, DC current transducers, AC current transducers, AC voltage transducers, DC voltage transducers, AC power transducers, and frequency transducers.