Leakage Current Meter with Remarkable Ease of Use.
Double Your Work Speed with Innovative Jaw Design.
Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. Use the CM4001 to easily clamp within crowded cables in order to reduce work time and improve safety. With guaranteed accuracy from 0.60 mA to 600.0 A, the CM4001 provides a one-stop solution for a variety of applications. A built-in comparator function also helps you find issues much faster.

Key Features
• Slim jaws let you work with ease
• Measure everything from leakage to load
• Identify intermittent GFCI and RCD trips to prevent unplanned equipment downtime by testing for earth leakage current
• Find issues faster with comparator function

Model No. (Order Code)

Remarkable ease of use. Double your speed for checking leakage current

Slim jaws let you work with ease.
Easily clamp within crowded cables to save work time and improve safety.

Core jaw diameter φ24 mm

Despite its compact body, the core jaw diameter is φ24 mm.

Find issues faster with a comparator function

Quickly Identify leakage current locations with red backlight and audio alerts based on comparison with set threshold value.

Perform everyday maintenance work more safely and easily

Clamp thick wires and double wires with narrow spacing smoothly.
Various useful functions support for troubleshooting and diagnostics.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

AC Current range60.00 mA/ 600.0 mA/ 6.000 A/ 60.00 A/ 600.0 A, 5 ranges (40 Hz to 1 kHz, True RMS)
Basic accuracy (45-66 Hz): ±1.5% rdg ±5 dgt (60.00 mA to 6.000 A), ±2.5% rdg ±5 dgt (60.00 A to 600.0 A)
Guaranteed accuracy: from 0.60 mA to 600.0A
AC Voltage rangeN/A
Frequency range40.0 Hz to 999.9 Hz
Crest factor4.5 (4000 counts or less)
3 (more than 4000 counts, 6000 counts or less)
Filter functionCut off frequency: 180 Hz ±30 Hz at filter ON (-3 dB)
Output functionN/A
Other functionsComparator function, record Max/Min/Avg value, backlight, data hold, auto power off, AC inrush function
DisplayDisplay refresh rate: 5 times/s /span>
Power supplyLR03 alkaline battery × 1; 32 hours of continuous use
Core jaw diameterφ 24 mm (0.94 in)
Dimensions and mass37 mm (1.46 in) W × 160 mm (6.30 in) H × 27 mm (1.06 in) D, 115 g (4.1 oz.)
AccessoriesCarrying case × 1, Strap × 1, Instruction manual × 1, Operating Precautions × 1, LR03 alkaline battery × 1
Catalog: AC LEAKAGE CLAMP METER CM4001Download PDF  [1MB]English
Catalog: CLAMP METER SeriesDownload PDF  [6MB]English
Catalog: AC/DC CLAMP METER seriesDownload PDF  [6MB]English

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