HIOKI Current Sensors – precision measurement for your application

Zero-flux current sensors for high-precision measurement

Since 1971, HIOKI pioneered precision current sensing and has expanded this expertise across a wide range of measurement applications. Today, HIOKI offers a broad range of current sensors that are indispensable across numerous industries for efficiency analysis, inverter testing, observing current waveforms, and measuring high currents.

Choose the right HIOKI current sensor from three main groups:

Precision current clamps – for non-intrusive AC/DC current measurement up to 2000 A with a clamp-on design
Wideband current probes – for high-speed waveform analysis with bandwidths up to 120 MHz and direct oscilloscope connection
Current transducers – for high-accuracy current measurement up to 2000 A in power analysis applications

Precision Current Clamps

Wideband Current Probes

Current Transducers

37 Products

CT6843A

HIOKI CT6843A - AC/DC High-accuracy Current Clamp, 200 A / 700 kHz

AC/DC current clamp using advanced fluxgate technology, 200A rated current, basic accuracy ±0.2% rdg., wide temperature range of -40 °C to 85 °C, wide bandwidth from DC to 700 kHz, maximum conductor diameter 20 mm, cable length 3 m

€2,018.00

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CT6847A

HIOKI CT6847A - AC/DC High-accuracy Current Clamp, 2000 A / 70 kHz

AC/DC current clamp using advanced fluxgate technology, 2000 A rated current, basic accuracy ±0.15% rdg., wide temperature range of -40 °C to 85 °C, bandwidth from DC to 70 kHz, maximum conductor diameter 50 mm, cable length 3 m

€2,868.00

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CT6834

HIOKI CT6834 - Super-slim AC/DC high-accuracy Current Clamp, 500 A / 50 kHz

Ultra-slim AC/DC current clamp using advanced fluxgate technology, 500 A rated current, DC to 50 kHz frequency bandwidth, high accuracy ±0.07% rdg., wide temperature range of -40°C to +85°C, maximum conductor diameter 20 mm, cable length 5 m

€2,368.00

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CT6705

CT6705 HIOKI AC/DC Fluxgate Current Probe, 500 A / 15 MHz

AC/DC current probe with fluxgate sensing, 500 A rated current, ±800 A peak, DC to 15 MHz bandwidth, 10 mV/A output, BNC connector, 23.3 ns rise time, ±0.5 % rdg. ±1 mV accuracy, overload indication

€4,398.00

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CT6711

HIOKI CT6711 - AC/DC multi-range Current Probe, 30 A / 120 MHz

Hall sensor based zero-flux current probe suitable for capturing micro to high-speed currents, wide bandwidth from DC to 120 MHz, measurable current from 200 µA to 30 A in 3 ranges (500 mA, 5 A, 30 A), high signal-to-noise ratio, standard BNC oscilloscope connectivity, builtin overload protection

€5,598.00

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CT6701

HIOKI CT6701 - AC/DC Current Probe, 5 A / 120 MHz

Hall sensor based zero-flux current probe suitable for capturing very small to high-speed currents, wide bandwidth from DC to 120 MHz, measurable continuous current from 1 mA to 5 A, high signal-to-noise ratio, standard BNC oscilloscope connectivity, built-in overload protection

€3,568.00

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3276

HIOKI 3276 - AC/DC Current Probe, 30 A / 100 MHz

Hall sensor based zero-flux current probe suitable for capturing small to high-speed currents, wide bandwidth from DC to 100 MHz, measurable continuous current from 10 mA to 30 A, high signal-to-noise ratio, standard BNC oscilloscope connectivity, built-in overload protection

€3,568.00

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CT6863-05

HIOKI CT6863-05 - AC/DC Current Sensor, Fluxgate, 200 A / 500 kHz

The CT6863-05 is a pass-through AC/DC current sensor designed for precision power measurement in industrial environments. It features a wide frequency range and low phase shift, making it highly suitable for accurate waveform observation and harmonic analysis.Technical Details: Current Rating: 200 A AC/DCFrequency Range: DC to 500 kHz Accuracy: ±0.05% rdg, ±0.01% f.s.Maximum Conductor Diameter: 24 mm Operating Temperature: -30°C to 85°C Input Impedance Requirement: 1 MΩ or higher Model Rated current Bandwidth Basic accuracy Max. Conductor diameter CT6877A 2000 A DC – 1 MHz 0,04 % rdg Ø 80 mm CT6876A 1000 A DC – 1.5 MHz 0,04 % rdg Ø 36 mm CT6875A 500 A DC – 2 MHz 0,04 % rdg Ø 36 mm CT6904A 500 A DC – 4 MHz ±0,025 % rdg Ø 32 mm CT6873 200 A DC – 10 MHz ±0,03 % rdg Ø 24 mm CT6872 50 A DC – 10 MHz ±0,03 % rdg Ø 24 mm CT6863-05 200 A DC – 500 kHz ±0,05 % rdg Ø 24 mm CT6862-05 50 A DC – 1 MHz ±0,05 % rdg Ø 24 mm

€828.00

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CT6904A

HIOKI CT6904A - High-precision AC/DC current sensor, 500 A / 4 MHz

High-accuracy pass-through AC/DC current sensor with zero-flux fluxgate, up to 500 A, DC–4 MHz bandwidth, 120 dB CMRR at 100 kHz, ±5 ppm linearity, flat frequency response, 3 m cable with ME15W connector.

CT6873

HIOKI CT6873 - AC/DC Current Sensor, 200 A / 10 MHz

The CT6873A is an advanced current sensor that provides high-precision AC/DC current measurements for power analysis applications. Its wide frequency range and excellent phase accuracy make it suitable for complex waveform and harmonic studies. It supports automatic phase shift correction (APSC).Technical Details Current Rating: 200 A AC/DC Frequency Range: DC to 10 MHz Accuracy: ±0.03% rdg, ±0.002% f.s. Maximum Conductor Diameter: 24 mm Operating Temperature: -40°C to 85°C Input Impedance Requirement: 1 MΩ or higher Model Rated current Bandwidth Basic accuracy Max. Conductor diameter CT6877A 2000 A DC – 1 MHz 0,04 % rdg Ø 80 mm CT6876A 1000 A DC – 1.5 MHz 0,04 % rdg Ø 36 mm CT6875A 500 A DC – 2 MHz 0,04 % rdg Ø 36 mm CT6904A 500 A DC – 4 MHz ±0,025 % rdg Ø 32 mm CT6873 200 A DC – 10 MHz ±0,03 % rdg Ø 24 mm CT6872 50 A DC – 10 MHz ±0,03 % rdg Ø 24 mm CT6863-05 200 A DC – 500 kHz ±0,05 % rdg Ø 24 mm CT6862-05 50 A DC – 1 MHz ±0,05 % rdg Ø 24 mm

€1,788.00

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CT9555

HIOKI CT9555 - Current Sensor Interface, 1-Channel

1 channel current sensor interface for current sensors, clamps and probes with ME15W connectors, sensor power supply, BNC waveform output

€508.00

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CT9557

HIOKI CT9557 - Current Sensor Interface, 4-Channel

4 channel current sensor interface for current sensors, clamps and probes with ME15W connectors, sensor power supply, 4 ch BNC waveform outputs, BNC total waveform output, BNC total RMS output

€1,618.00

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Precision current clamps Wideband current probes up to 500 A Current transducers up to 2000 A

Current, Bandwidth & Size: Pick your Current Clamp

HIOKI AC/DC precision current clamps combine high-precision current measurement with the ease of use with a split-core, clamp-on design. Engineered for non-contact AC/DC current measurement with advanced fluxgate technology, these clamp-on sensors enable fast, hassle-free deployment in laboratory, field, test bench, and production applications without interrupting the circuit.

Whatever your measurement task is, HIOKI has the right current clamp for you: from the CT6847A for high currents up to 2000 A up and conductors up to 50 mm diameter, to the compact CT6833 and CT6834 for measurements up to 500 A in tight spaces and ultra-compact models for small conductors in cable harnesses. Compare the key specifications and find the HIOKI current clamp that fits your application – from vehicle power testing and production quality control to power electronics and precision waveform analysis. Achieve highly accurate measurement results with minimal setup time.

Explore HIOKI current clamp types

Current, Bandwidth & Size: Pick your Current Clamp

Model	Rated current	Bandwidth	Basic accuracy	Max. conductor diameter
CT6847A	±2000 A	DC – 70 kHz	±0.15% rdg	Ø 50 mm
CT6846A	±1000 A	DC – 100 kHz	±0.2% rdg	Ø 50 mm
CT6845A	±500 A	DC – 200 kHz	±0.2% rdg	Ø 50 mm
CT6844A	±500 A	DC – 500 kHz	±0.2% rdg	Ø 20 mm
CT6843A	±200 A	DC – 700 kHz	±0.2% rdg	Ø 20 mm
CT6841A	±20 A	DC – 2 MHz	±0.2% rdg	Ø 20 mm
CT6834	±500 A	DC – 50 kHz	±0.07% rdg	Ø 20 mm
CT6833	±200 A	DC – 50 kHz	±0.07% rdg	Ø 20 mm
CT6831	±20 A	DC – 100 kHz	±0.3% rdg	Ø 5 mm
CT6830	±2 A	DC – 100 kHz	±0.3% rdg	Ø 5 mm

Precision current clamps up to 2000 A Wideband current probes up to 500 A Current transducers up to 2000 A

TOP3-HIOKI-CT6705-ac-dc-fluxgate-current-probefor-oscilloscopes

Wideband Oscilloscope Current Probes up to 500 A

HIOKI wideband current probes are high-performance oscilloscope current probes for precise AC/DC current waveform analysis. With bandwidths up to 120 MHz, fast rise times down to ≤2.9 ns, and measurement ranges up to 500 A, they capture fast switching transients, dynamic current signals, and high-frequency current waveforms with high signal fidelity.

Select your current probe suiting your application needs: Portfolio highlights include the CT6711 with three selectable current ranges for flexible wideband current measurements, as well as the fluxgate-based CT6705 and CT6704 for reliable high-current and high-speed oscilloscope current measurement with zero drift and a wide operating temperature range. Typical applications include power electronics evaluation, inverter testing, signal integrity analysis, and high-speed current analysis and precision waveform observation.

Explore HIOKI wideband current probe types

Compare wideband current probe specifications

Model	Rated current / ranges	Bandwidth	Rise time	Max. conductor diameter	Sensing method	Suitable power supplies
CT6711	0.5 / 5 / 30 A	DC – 120 MHz	≤ 2.9 ns	Ø 5 mm	Hall element	3269
CT6710	0.5 / 5 / 30 A	DC – 50 MHz	≤ 7.0 ns	Ø 5 mm	Hall element	3269
CT6701	5 A	DC – 120 MHz	≤ 2.9 ns	Ø 5 mm	Hall element	3269, 3272
CT6700	5 A	DC – 50 MHz	≤ 7.0 ns	Ø 5 mm	Hall element	3269, 3272
3276	30 A	DC – 100 MHz	≤ 3.5 ns	Ø 5 mm	Hall element	3269, 3272
3273-50	30 A	DC – 50 MHz	≤ 7.0 ns	Ø 5 mm	Hall element	3269, 3272
CT6704	200 A	DC – 30 MHz	≤ 11.6 ns	Ø 20 mm	Fluxgate	3269
CT6705	500 A	DC – 15 MHz	≤ 23.3 ns	Ø 20 mm	Fluxgate	3269

Precision current clamps up to 2000 A Wideband current probes up to 500 A Current transducers up to 2000 A

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High-Accuracy Current Transducers up to 2000 A

HIOKI transducers are designed for precise AC and DC current measurement in lab test environments. The portfolio includes pass-through current sensors for power analyzer setups, from compact medium-current models to high-current transducers for demanding test benches. Depending on the model, they support currents up to 2000 A (CT6877A), bandwidths up to 10 MHz (CT6872/CT6873), and accuracy down to ±0.025 % rdg. at 4 MHz bandwidth (CT6904A) – enabling reliable measurement of fast current dynamics with excellent repeatability.

Engineers use HIOKI current transducers for motor testing, inverter testing, converter testing, EV drivetrain development, inductor loss testing, harmonic analysis, efficiency analysis, and power grid connection testing in power electronics applications.

Explore HIOKI current transducers

Compare current transducer specifications

Model	Rated current	Bandwidth	Basic accuracy	Max. Conductor diameter
CT6877A	2000 A	DC – 1 MHz	0,04 % rdg	Ø 80 mm
CT6876A	1000 A	DC – 1.5 MHz	0,04 % rdg	Ø 36 mm
CT6875A	500 A	DC – 2 MHz	0,04 % rdg	Ø 36 mm
CT6904A	500 A	DC – 4 MHz	±0,025 % rdg	Ø 32 mm
CT6873	200 A	DC – 10 MHz	±0,03 % rdg	Ø 24 mm
CT6872	50 A	DC – 10 MHz	±0,03 % rdg	Ø 24 mm
CT6863-05	200 A	DC – 500 kHz	±0,05 % rdg	Ø 24 mm
CT6862-05	50 A	DC – 1 MHz	±0,05 % rdg	Ø 24 mm