Test and Measurement Products

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HIOKI E E CORPORATION CT6863-05 AC/DC Current Sensor
The AC/DC Current Sensor CT6863-05 is a high-performance pass-through sensor engineered for accurate current measurement across a wide frequency range, making it ideal for advanced power and automotive applications.

Key Features
- Measures AC and DC current up to 200 A with exceptional precision
- Wide bandwidth from DC to 500 kHz for accurate waveform capture
- Operates reliably in extreme temperatures from -30°C to 85°C
- Designed for electric and hybrid vehicle testing environments
- Ideal for inverter, power conditioner, and switching power supply analysis
- Compatible with oscilloscopes and Memory HiCorders using a high-impedance input
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HIOKI E E CORPORATION CT6872 AC/DC Sensor
The CT6872 AC/DC Current Sensor is designed for engineers who need accurate, wideband current measurement at lower current levels. With a 50 A rating and an exceptional DC to 10 MHz frequency response, it is ideal for evaluating fast-switching power electronics, EV components, and renewable energy systems.

Key Features
- Measures AC and DC currents up to 50 A
- Ultra-wide bandwidth from DC to 10 MHz
- High accuracy for low-current power analysis
- Stable performance from -40°C to 85°C
- Supports EV, inverter, PV, and fuel cell applications
- Compatible with Hioki Power Analyzers and Memory HiCorders
- Automatic sensor recognition with supported analyzers
- Available in 3 m and 10 m cable lengths
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HIOKI E E CORPORATION CT6875A AC/DC Current Sensor
The CT6875A AC/DC Current Sensor is designed for precise measurement of high-current, high-speed inverter applications. With wide bandwidth and strong noise resistance, it supports advanced power and energy evaluations across demanding environments.

Key Features
- Measures up to 500 A (rms) for high-current applications
- Wide bandwidth from DC to 2 MHz for accurate high-speed analysis
- Uses zero flux method with flux gate detection for superior accuracy
- Strengthened shielding improves noise resistance in harsh environments
- Stable performance across a wide temperature range from -40°C to 85°C
- Compatible with Hioki Power Analyzers, Memory HiCorders, oscilloscopes, and DMMs
- Ideal for EVs, photovoltaics, wireless charging, and inverter systems
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HIOKI E E CORPORATION CT6876A AC/DC Current Sensor
The CT6876A AC/DC Current Sensor is purpose-built for accurate measurement of extremely high currents in fast-switching inverter systems. With excellent noise resistance and wide bandwidth, it delivers stable and reliable data for advanced power applications.

Key Features
- Measures up to 1000 A (rms) for large-current applications
- Wide frequency bandwidth from DC to 1.5 MHz for high-speed analysis
- High basic accuracy of ±0.04% with phase accuracy of ±0.1°
- Zero flux method with flux gate detection for superior linearity
- Strengthened shielding to measure current signals buried in noise
- Stable operation across -40°C to 85°C environments
- Compatible with Hioki Power Analyzers, Memory HiCorders, oscilloscopes, and DMMs
- Ideal for EV, HEV, PHEV, photovoltaics, and inverter systems
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HIOKI E E CORPORATION CT6877A AC/DC Current Sensor
The CT6877A AC/DC Current Sensor is designed for precise measurement of extremely large currents in high-speed inverter and EV systems. With a wide aperture, strong noise resistance, and advanced zero flux technology, it delivers stable and accurate results even in demanding environments.

Key Features
- Measures up to 2000 A (rms) for EV, HEV, and industrial applications
- Wide frequency bandwidth from DC to 1 MHz
- Large 80 mm aperture supports collective measurement of multiple conductors
- Zero flux method with flux gate detection for excellent linearity
- Strengthened shield for reliable measurement in noisy environments
- Stable operation across -40°C to 85°C
- Automatic sensor recognition with Hioki Power Analyzer PW8001
- Suitable for battery testing, inverters, photovoltaics, and fuel cells
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HIOKI E E CORPORATION CT7631 Current Sensor
The Hioki CT7631 AC/DC Current Sensor is a compact and precise solution for measuring low-level AC and DC currents up to 100 A. Designed for waveform observation and long-term monitoring, it pairs with the detachable Display Unit CM7290 or CM7291 to deliver flexible output options for laboratories, maintenance teams, and site inspections.

Key Features
- Measures AC and DC currents up to 100 A
- Ideal for observing instantaneous waveforms
- Detachable Display Unit for lab and field applications
- Four output modes: WAVE, RMS, PEAK, FREQ
- Compact 33 mm core for insulated conductors
- Wide operating temperature range from -25°C to 65°C
- Bluetooth wireless data transfer with CM7291
- Compatible with Memory HiCorders, data loggers, and oscilloscopes
- CAT IV 600 V safety rating
- Mix and match with other CT7600 series sensors
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HIOKI E E CORPORATION CT7636 Current Sensor
The Hioki CT7636 AC/DC Current Sensor is built for accurate measurement and real-time waveform observation of AC and DC currents up to 600 A. Designed for laboratory environments and field inspections, it pairs with the detachable Display Unit CM7290 or CM7291 to deliver flexible output options and seamless data recording.

Key Features
- Measures AC/DC currents up to 600 A
- Ideal for instantaneous waveform observation
- Detachable Display Unit for lab and site use
- Four output formats: WAVE, RMS, PEAK, FREQ
- Wide operating temperature range from -25°C to 65°C
- Bluetooth wireless data transfer with CM7291
- Compact core diameter of 33 mm for insulated conductors
- Compatible with Memory HiCorders, data loggers, and oscilloscopes
- CAT IV 600 V safety rating
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HIOKI E E CORPORATION CT7642 Current Sensor
The Hioki CT7642 AC/DC Current Sensor is designed for precise measurement and waveform observation of high AC and DC currents up to 2000 A. Built for laboratories and controlled environments, it pairs with the detachable Display Unit CM7290 or CM7291 to deliver flexible output formats, real-time monitoring, and seamless data logging.

Key Features
- Measures AC/DC currents up to 2000 A
- Designed for instantaneous waveform observation
- Detachable Display Unit for lab and site inspections
- Four selectable output modes: WAVE, RMS, PEAK, FREQ
- Wide operating temperature range from -25°C to 65°C
- Bluetooth wireless data transfer with CM7291
- Large core diameter of 55 mm for thick conductors
- Compatible with Memory HiCorders, data loggers, and oscilloscopes
- CAT IV 600 V safety rating
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HIOKI E E CORPORATION CT7731 Current Sensor
The Hioki CT7731 AC/DC Auto-Zero Current Sensor provides precise monitoring for currents up to 100 A in both AC and DC applications. Designed to pair with the detachable Display Unit CM7290/CM7291, it delivers long-term measurement stability even under wide temperature variations. Perfect for field inspections, lab testing, and integration with data loggers or Memory HiCorders.

Key Features
- Measures AC/DC currents up to 100 A
- Auto-zero function for long-term measurement stability
- Detachable Display Unit for field and lab convenience
- Four output modes: WAVE, RMS, PEAK, FREQ
- Wide operating temperature range: -25°C to 65°C
- Bluetooth connectivity with CM7291 via GENNECT Cross app
- Core diameter: 33 mm (1.30 in)
- CAT IV 600 V safety rating
- Compatible with Memory HiCorders and Data Loggers via CM7290/CM7291
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HIOKI E E CORPORATION CT7736 Current Sensor
The Hioki CT7736 AC/DC Auto-Zero Current Sensor provides accurate current monitoring up to 600 A in AC and DC applications. Designed to pair with the detachable Display Unit CM7290/CM7291, it ensures stable long-term measurements even in extreme temperatures. Ideal for field inspections, laboratory testing, and integration with data loggers or Memory HiCorders.

Key Features
- Measures AC/DC currents up to 600 A
- Auto-zero adjustment for stable long-term readings
- Detachable Display Unit for convenient field use
- Four output modes: WAVE, RMS, PEAK, FREQ
- Wide operating temperature: -25°C to 65°C
- Bluetooth connectivity with CM7291 via GENNECT Cross app
- Core diameter: 33 mm (1.30 in)
- CAT IV 600 V safety rating
- Compatible with Memory HiCorders and Data Loggers via CM7290/CM7291
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HIOKI E E CORPORATION CT7742 Current Sensor
The Hioki CT7742 AC/DC Auto-Zero Current Sensor is designed for precise long-term current monitoring in industrial and field environments. Paired with the detachable Display Unit CM7290/CM7291, it offers a wide temperature range and multiple output formats, making it ideal for both site inspections and laboratory testing.

Key Features
- Measures AC/DC currents up to 2000 A
- Auto-zero adjustment for long-term, stable measurements
- Detachable Display Unit for convenient field use
- Four output modes: WAVE, RMS, PEAK, and FREQ
- Wide operating temperature range: -25°C to 65°C
- Bluetooth connectivity with GENNECT Cross app (CM7291)
- Core diameter: 55 mm (2.17 in)
- CAT IV 600 V safety rating
- Compatible with Memory HiCorders and Data Loggers via CM7290/CM7291
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HIOKI E E CORPORATION CT7812 AC/DC Current Sensor
The CT7812 AC/DC Current Sensor is one of the industry’s smallest current sensors, designed for precise low-level current measurement in space-constrained and complex wiring environments. Its compact φ5 mm clamp and non-contact sensing allow accurate AC and DC current measurement without interrupting the circuit, making it ideal for professional testing and data logging applications.

Key Features
- Measures up to 2 A AC/DC with high accuracy
- Ultra-compact φ5 mm clamp for confined installations
- Non-contact current measurement for safe operation
- Ideal for complex and high-density wiring layouts
- Supports multi-point measurement with multiple sensors
- Stable low-level DC current measurement
- Reliable operation across a wide temperature range
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HIOKI E E CORPORATION CT7822 AC/DC Current Sensor
The CT7822 AC/DC Current Sensor is one of the industry’s smallest current sensors, designed to measure up to 20 A AC/DC with high accuracy in confined and complex wiring environments. Its compact φ5 mm clamp and non-contact design make it ideal for professional applications that demand precise current measurement without interrupting the circuit.

Key Features
- Measures up to 20 A AC/DC with high accuracy
- Ultra-compact φ5 mm clamp for space-limited installations
- Non-contact current sensing for safe and easy setup
- Ideal for complex and high-density wiring layouts
- Enables installation of multiple sensors in close proximity
- Accurate low-level DC current measurement
- Stable performance across a wide temperature range
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HIOKI E E CORPORATION CT9555 Sensor Unit
The CT9555 Sensor Unit is a single-channel power adapter and waveform output interface designed for Hioki high-precision current sensors and probes, including the CT684x, CT686x, and 9709 series. It delivers reliable waveform output for accurate current measurements across AC and DC circuits.

Key Features
- Single-channel power supply for high-precision current sensors
- Compatible with CT684x, CT686x, and 9709 series sensors and probes
- Provides waveform output for accurate AC/DC current measurement
- BNC terminal output with 2 V full-scale voltage and 50 Ω output resistance
- Compact and lightweight design (33 × 67 × 132 mm, 200 g)
- Operates in a wide temperature range: -10°C to 50°C
- AC Adapter Z1008 (100–240 V AC) or external DC 10–30 V supply
- ME15W connector ensures easy sensor integration
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HIOKI E E CORPORATION CT9556 Sensor Unit
The CT9556 Sensor Unit is a high-precision, single-channel sensor unit and power adapter designed for Hioki current sensors and probes, including the CT684x, CT686x, and 9709 series. It delivers accurate waveform and RMS output, enabling precise measurement of AC and DC currents.

Key Features
- Single-channel sensor unit and power supply for high-precision current sensors
- Supports CT684x, CT686x, and 9709 series current sensors and probes
- Provides waveform output and RMS output functionality
- Enables AC current measurement even with loggers lacking RMS conversion
- Compatible with Hioki Power Meters, Memory HiCorders, and data loggers
- ME15W connector for seamless integration
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HIOKI E E CORPORATION CT9557 Sensor Unit
The CT9557 Sensor Unit is a high-precision 4-channel device designed to work with Hioki current sensors and probes, including the CT684x and CT686x series. It enables accurate measurement of large currents in multi-cable circuits by aggregating sensor outputs into a single waveform or RMS signal, simplifying complex testing setups.

Key Features
- Aggregates signals from multiple sensors for total current measurement
- Supports CT684x, CT686x, and 9709 series current sensors
- Outputs a single waveform or RMS value from combined sensor signals
- High-precision power supply for waveform-enabled sensors
- Ideal for multi-cable circuits and high-current applications
- Compatible with Hioki Power Meters, Memory HiCorders, and oscilloscopes
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