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Oscilloscope Current Probes

Keysight provides three different types of current probes.

Clamp-on current probes
Keysight’s clamp-on current probes sense current flowing through a conductor and convert it to a voltage that can then be viewed and measured on an oscilloscope. These probes use a hybrid technology that includes a Hall effect sensor (which senses the DC current) and a current transformer (which senses the AC current). Using split core construction, the current probes easily clip on and off a conductor, making it unnecessary to make an electrical connection to the circuit. Measurement bandwidths from DC to 150 MHz are available.

High sensitivity current probes
The Keysight N2820A/21A high-sensitivity AC/DC probe is engineered to make high-dynamic-range, high-sensitivity current measurements to meet your challenging high current measurement needs. The N2820A current probe can support measurements from 50 µA to 5 A with the supplied accessories. The N2820A 2-channel current probe connects to two oscilloscope channels to provide simultaneous low- and high-gain views for wider dynamic range measurement, while the N2821A 1-channel current probe provides one user-selectable view at a time.

Rogowski coil current probes
The Keysight N7040A Series Rogowski current probe is ideal for measuring AC current (up to 3,000A) in the presence of large DC current and can be used to design, debug, and troubleshoot power semiconductor circuits, power supplies, inverters, and motor drives. The probe is easy to use because it has a thin, lightweight, and flexible clip-around Rogowski coil that lets you make current measurements in the most difficult to reach and confined spaces of your circuit under test. It can also measure large AC current without having to increase the transducer size.

AC/DC Current Probe

Compare All Current Probes (13)

Find an Oscilloscope Probe

  • 1146B 100 kHz/100 A Current Probe 1146B 100 kHz/100 A Current Probe (1) 

    1146B 100 kHz/100 A Current Probe

    • Frequency range: DC to 100 kHz (-3dB with current de-rating)
    • Current range: 100 mV/A: 100 mA to 10 A peak, 10 mV/A: 1 to 100 A peak
    • Working voltage: 600 V max
       

  • N2893A 100 MHz/15A AC/DC Current Probe N2893A 100 MHz/15A AC/DC Current Probe (1) 

    N2893A 100 MHz/15A AC/DC Current Probe

    The Keysight N2893A is a 100 MHz/15 A, AC/DC current probe with AutoProbe interface for Infiniium and InfiniiVision Series oscilloscopes (except 6000 Series 100 MHz).

  • N7026A AC/DC high sensitivity clamp-on current probe, 150MHz N7026A AC/DC high sensitivity clamp-on current probe, 150MHz (1) 

    N7026A AC/DC high sensitivity clamp-on current probe, 150MHz

    • Clamp-on style
    • DC to 150 MHz
    • High sensitivity: down to 1 mA/div
    • 40 Apeak

  • N7040A Rogowski AC current probe, 23 MHz, 3000 A N7040A Rogowski AC current probe, 23 MHz, 3000 A (1) 

    N7040A Rogowski AC current probe, 23 MHz, 3000 A

    • Peak current: 3,000 Apeak
    • Easy to use, flexible probe tip loop
    • Bandwidth: 3 Hz to 24 MHz

  • N7041A Rogowski AC current probe, 30 MHz, 600 A N7041A Rogowski AC current probe, 30 MHz, 600 A (1) 

    N7041A Rogowski AC current probe, 30 MHz, 600 A

    • Peak current: 600 Apeak
    • Easy to use, flexible probe tip loop
    • Bandwidth: 12 Hz to 30 MHz
       

  • N7042A Rogowski AC current probe, 30 MHz, 300 A N7042A Rogowski AC current probe, 30 MHz, 300 A (1) 

    N7042A Rogowski AC current probe, 30 MHz, 300 A

    • Peak current: 300 Apeak
    • Easy to use, flexible probe tip loop
    • Bandwidth: 9.2 Hz to 30 MHz
       

  • 1147B 50 MHz/15A AC/DC Current Probe 1147B 50 MHz/15A AC/DC Current Probe (1) 

    1147B 50 MHz/15A AC/DC Current Probe

    • Flat bandwidth (DC-50MHz)
    • Low noise (<2.5 mA rms)
    • Low circuit insertion loss
       

  • N2780B 2 MHz/500 Arms AC/DC Current Probe N2780B 2 MHz/500 Arms AC/DC Current Probe (1) 

    N2780B 2 MHz/500 Arms AC/DC Current Probe

    Compatible with any oscilloscope with high impedance BNC input, the new N2780B current probe offers accurate and reliable solution for measuring ac and dc currents.

  • N2781B 10 MHz/150 Arms AC/DC Current Probe N2781B 10 MHz/150 Arms AC/DC Current Probe (1) 

    N2781B 10 MHz/150 Arms AC/DC Current Probe

    Compatible with any oscilloscope with high impedance BNC input, the new N2781B current probe offers accurate and reliable solution for measuring ac and dc currents.

  • N2782B 50 MHz/30 Arms AC/DC Current Probe N2782B 50 MHz/30 Arms AC/DC Current Probe (1) 

    N2782B 50 MHz/30 Arms AC/DC Current Probe

    Compatible with any oscilloscope with high impedance BNC input, the new N2782B current probe offers accurate and reliable solution for measuring ac and dc currents.

Oscilloscope Current Probes [Discontinued]
Product support information for your discontinued and obsolete oscilloscope current probes.