CM4003 (Output and external power supply function)

Prevent unexpected downtime! Identify potential problems and avoid large problems

Key Features • Wireless support. Transfers measurements to your smartphone or tablet. (Optional Wireless Adapter Z3210 is necessary) • Detect minuscule leakage currents with a newly designed sensor. (Core jaw diameter up to φ 40 mm) • Broad measurement range extending from leakage currents to load currents • Complies with the performance standard set forth in IEC/EN 61557-13, an international standard on leak clamp meters • Solve GFCI and RCD problems quickly • Speed up pass/fail judgments with the built-in comparator function • Output function (waveform/RMS): use with a recorder to record waveforms and fluctuations • External power supply: use an optional AC adapter for continuous, long-term measurement CAT III 300 V

Model No. (Order Code)


When Z3210 is installed

Connect the Z3210 to add wireless communications
Easy visualization of intermittent trip events

Connect the Wireless Adapter Z3210 (sold separately) to add wireless communications. You can transfer the readings to your phone or tablet and check the location and time of leakage easily and efficiently.

Regular inspections of GFCIs and RCDs [Photo drawing function]

Record measurement locations and measured values together. Identify trip locations quickly and reliably!

Identifying intermittent trip events [Event recording function]

The meter records event information (times and current values) in its internal memory. Collect data using a tablet and check for trips!

Detect minuscule leakage currents with a newly designed sensor
IEC/EN 61557-13 compliant

The core and shielding are constructed from high-permeability magnetic materials. The CT sensor features a uniform coil. The CM4002/CM4003 complies with the performance standard set forth in IEC/EN 61557-13, an international standard on leak clamp meters.

High-reliability leakage current measurement

1. Uniform measurement sensitivity inside jaws: When affixed around a wire, sensitivity is uniform regardless of the position of the conductor inside the jaws. 2. Resistance to the effects of external magnetic fields: Shielding made of high-permeability magnetic material blocks magnetic fields from the surrounding environment. 3. Elimination of the effects of highfrequency currents: A low-pass filter eliminates high-frequency capacitive leakage currents from inverters and other equipment.

Measurable conductor diameter up to φ40 mm

The jaws have a maximum diameter of φ40 mm and can be used to pinch thick cables or multiple cables at once.

Long-time continuous measurement with output function and external power supply function

Waveform/RMS output function. Waveforms and fluctuations can be recorded in combination with a recorder. External power supply function allows continuous measurement for a long period of time using an AC adapter (optional).

Basic specifications (Accuracy guarantee period: 1 year, Accuracy guarantee period after adjustment made by Hioki: 1 year)

AC Current range6.000 mA, 60.00 mA, 600.0 mA, 6.000 A, 60.00 A, 200.0 A, 6 ranges, True RMS
Basic accuracy 45 Hz - 400 Hz: ±1.0% rdg ±5 dgt (6.000 mA to 6.000 A), ±1.5% rdg ±5 dgt (60.00 A, 200.0 A)
Basic accuracy 15 Hz - 45 Hz, 400 Hz - 2 kHz: ±2.0% rdg ±5 dgt
Defined accuracy range: 0.060 mA to 200.0 A
AC Voltage rangeN/A
Frequency range15.0 Hz to 2000 Hz
Crest factor3 (other than 200.0 A range), 1.5 (200.0 A range)
Filter functionCut off frequency: 180 Hz ±30 Hz at filter ON (-3 dB)
Output functionRMS (RMS value output), WAVE (waveform output)
Other functionsMax/ Min/ AVG/ PEAK MAX/ PEAK MIN value display, Display value hold and auto hold; Backlight, Auto power save, Buzzer sound, Event count display, Comparator, Simple event recording, Rush current measurement
DisplayDisplay refresh rate: 5 times/s
Power supply- AA-size alkaline battery (LR6) × 2; Continuous operating time: 48 hr. (without Z3210 installed), 30 hr. (with Z3210 installed and using wireless communications)
- AC Adapter Z1013 (5 V DC, 2.6 A)
Core jaw diameterφ 40 mm (1.57 in.)
Dimensions and mass64 mm (2.52 in) W × 233 mm (9.17 in) H × 37 mm (1.46 in) D, 400 g (14.1 oz.)
AccessoriesConnection Cable L9097 × 1, USB Cable × 1, Carrying case C0203 × 1, Instruction manual × 1, Operating Precautions × 1, AA-size alkaline battery (LR6) × 2

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Seminar Videos On Demand

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Seminar Schedule

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Catalog: CLAMP METER Series Download PDF  [8MB] English
Catalog: AC LEAKAGE CLAMP METER CM4002, CM4003 Download PDF  [2MB] English

User Guides

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Instruction Manual Korean
Instruction Manual English

Outline Drawings

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Technical Notes

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Declaration of Conformity


Drivers, Firmware

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Receiving side BNC (female), output banana (male) *Not compatible with older generation Memory Hicorders with banana input terminals



100 V to 240 V AC


• Increase your work efficiency, by eliminating human errors from manual reporting • Transfer readings on instruments to easy-to-read graphical reports to prove integrity • Compliance with wireless regulations in more than 50 countries and regions

Learn more


Output terminal: BNC, power terminal: USB-C, 1.5 m



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