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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 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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HIOKI E E CORPORATION PW9100A AC/DC Current Box
The PW9100A AC/DC Current Box is a high-precision, direct-coupled current measurement device designed for use with Hioki Power Analyzers. Optimized for testing inverters, EVs, hybrid systems, and renewable energy equipment, it supports multi-channel measurements with unparalleled accuracy and wide bandwidth.

Key Features
- Direct AC/DC measurement up to 50 A
- Wide frequency bandwidth: DC to 3.5 MHz
- Exceptional power accuracy: ±0.055% with PW8001 (with U7005)
- Full-rack design for easy bench integration
- Supports 3- or 4-channel measurement options
- Automatic current sensor detection with PW8001
- High common-mode rejection: 120 dB at 100 kHz
- Ideal for high-precision motor, inverter, and EV testing
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