AC CLAMP METER Hioki CM3291 Key Features:

  • AC only, measure up to 2000 A AC
  • -25°C to 65°C operating temperature range
  • Also measure resistance, continuity, AC, and DC voltage

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(1 customer review)

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The Hioki clamp meter is the finest ammeter that combines Hioki’s expertise in current sensing technology. The Hioki CM3291 is a true RMS 2000 A AC rectified current clamp meter featuring a wide operating temperature range of -25°C to 65°C, a slim and compact clamp core, and an optional current sensing tube that you can choose from. Attachable to allow you to get into the tightest places.

The CM3291 primarily measures AC current, but it also measures resistance, continuity, AC/DC voltage, and frequency. Because of its clamp construction, which enables non-contact measurements, it is easy and secure to use. Current measurements may be done quickly and without fuss using the clamp, which is simple to place around wires or cables.

You not only can compare the hioki 3280-10f price with the hioki cm3291 but also compare the specifications of each other. you can also visit CM4141 other Hioki products.

Hioki CM3291 vs Hioki cm3281

  • With the ability to detect AC/DC voltage, resistance, continuity, and frequency in addition to AC current, the Hioki CM3291 is primarily intended for AC current measurements. It boasts a sizable digital display, a wide measuring range, and safety features including auto-power off and overload protection. The CM3291 is a small, light device with an ergonomic design for easy handling.
  • While the Hioki 3281 is similarly intended for AC current measurements, it has True RMS measurement capability, making it appropriate for waveforms with irregular shapes. It is capable of measuring temperature, resistance, frequency, continuity, and AC/DC voltage. Large digital display, illumination, hold function, and safety features are all included in the CM3281.

Hioki CM3291 AC Clamp Meter Specification

  • AC Current: 42.00 to 2000 A/accuracy 45-66 Hz: ±1.5% rdg
  • DC Voltage: 420.0 mV to 600 V / accuracy: ±1.0 % rdg
  • AC Voltage: 4.200 V to 600 V / accuracy 45-66 Hz: ±1.8% rdg
  • Resistance: 420.0 Ω to 42.00 MΩ / accuracy: ±2.0 % rdg
  • Power supply: Coin-type lithium battery (CR2032) ×1
  • Dimensions and mass: 57 mm (2.24 in) W × 198 mm (7.80 in) H × 16 mm (0.63 in) D, 103 g
1 review

1 review for Hioki CM3291 AC CLAMP METER

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  1. Ruth

    It has a high AC current measurement range

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Data Sheet


Electrical Specifications
AC voltage range/resolution/accuracy

DC voltage range/resolution/Accuracy

AC current range/resolution/Accuracy

, ,

Resistance Range/resolution/Accuracy

420.0 Ω to 42.00 MΩ / ±(2.0% rdg 4 dgt)

Frequency range/resolution/Accuracy

40 Hz to 1 kHz

Jaw Diameter

Φ 46 mm

Mechanical and General Specifications

57 mm (2.24 in)W × 198 mm (7.80 in)H × 16 mm (0.63 in)D


103 g


Coin type lithium battery CR2032 × 1


Carrying Case, Test Lead L9208, Coin type lithium battery CR2032, Instruction Manual, Operating Precautions

Operating temperature

−25°C to 65°C

Storage temperature

−25°C to 65°C

Data Hold

True RMS

auto power off