- Hall effect IC sensor.
- Transformer or current clamp meter, (suitable for AC current only).
- Fluxgate Transformer Type, (suitable for AC and/or DC current).
- Resistor, whose voltage is directly proportional to the current through it.
- Fiber optic current sensor, using an interferometer to measure the phase change in the light produced by a magnetic field.
- Rogowski coil, electrical device for measuring alternating current (AC) or high speed current pulses.