AC CLAMP METER CM 3289 Key Features:

  • The CM3289 is the successor to the popular 3280-20F with a redesigned thinner sensor to help you get into the tightest spaces
  • New redesigned sensor for even easier clamping
  • Measure even harmonic waveform components using the True RMS method
  • Connect the CT6280 flexible sensor to measure up to 4199 A in thick or paired wires
(1 customer review)
SKU: 934

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Hioki’s clamp meters are premium meters that incorporate Hioki’s expertise in current measurement technology. The CM3289 is a 1000A AC true-rms rectified clamp meter with a wide operating temperature range of -25°C to 65°C, a slim and compact clamping core, and an optional flexible current sensor that you can connect to accommodate the tightest achieve positions.

acdc clamp on hitester terms

Hioki cm3289 truerms ac clamp

The CM 3289 utilizes True-RMS measurement, which produces accurate display values even when measuring a distorted waveform, for example from an inverter-equipped device or switching power supply. When connected to an optional flexible current sensor (sold separately), the CM3289 can be used to measure the current flowing in pairs of wires or in tangled or complexly routed wires, around which it was not possible to apply a clamp-on sensor in the past.

Ac Clamp Meter Cm3289

Application of AC CLAMP METER

cm3289 truerms ac clamp meter

The CM3289 delivers all the functionality of a clamp meter and card tester in the form factor of the latter. In addition to current measurement, this single instrument provides voltage measurement, continuity check, and resistance measurement functionality. Despite its thin, compact design, the CM3289 has a broad operating temperature range of -13°F to 149°F (-25 °C to 65 °C) and can withstand being dropped from a height of 1 meter onto concrete. It is engineered for use in tough environments.

other products
You can check our other products likeCLAMP ON AC/DC HiTESTER 3288, AC CLAMP METER CM4141, AC/DC CLAMP METER 3284, AC/DC CLAMP METER CM4375,  CLAMP METER Hioki 3280-10F on our website.

AC CLAMP METER CM 3289 Specification:

  • AC Current: 42.00 to 1000 A/accuracy: ±1.5% rdg
  • DC Voltage: 420.0 mV to 600 V / accuracy: ±1% rdg
  • AC Voltage: 4.200 V to 600 V / accuracy: ±1.8% rdg
  • DC+AC Voltage: 6.000 V to 1000 V / accuracy DC, 45-66 Hz: ±1.0% rdg
  • Resistance: 420.0 Ω to 42.00 MΩ / accuracy: ±2% rdg
  • Power supply: Coin-type lithium battery (CR2032) ×1
  • Dimensions and mass: 57 mm (2.24 in) W × 181 mm (7.13 in) H × 16 mm (0.63 in) D, 100 g
1 review

1 review for AC CLAMP METER Hioki CM3289

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  1. Eric

    Has accurate measurement accuracy

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Hioki is a renowned Japanese brand known for its expertise in developing and manufacturing electrical measuring instruments. The company, Hioki E.E. Corporation, was established in 1935, and since then, it has committed itself to providing innovative solutions in the field of electrical measurement.

Hioki's product range is extensive, including devices such as digital multimeters, clamp meters, power meters, and oscilloscopes. These instruments are vital for various applications in research and development, maintenance, and production testing across industries like electronics, energy, and automotive. One of the key strengths of Hioki is its focus on precision and reliability, traits that are crucial in measurement instruments. Hioki’s products are designed to offer accuracy and durability, which make them preferred choices among professionals worldwide.

Moreover, Hioki emphasizes technological innovation and quality. The company invests significantly in research and development to keep up with evolving technological trends and to ensure their products meet the highest standards. This commitment to quality is reflected in their adherence to international certifications and standards. Hioki also values environmental sustainability, integrating eco-friendly practices in their operations and product designs. This includes efforts to reduce the environmental impact of their manufacturing processes and to design products that are energy efficient.

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Data Sheet


Technical Specifications

Feature Specification
AC Current Range 42.00 to 1000 A, 3 ranges (40 Hz to 1 kHz, True RMS), Basic accuracy: ±1.5% rdg. ±5 dgt.
DC Voltage Range 420.0 mV to 600 V, 5 ranges, Basic accuracy: ±1.0% rdg. ±3 dgt.
AC Voltage Range 4.200 V to 600 V, 4 ranges (45 to 500 Hz, True RMS), Basic accuracy: ±1.8% rdg. ±7 dgt.
Crest Factor 2.5 or less at 2500 counts (Linearly decreases to 1.5 or less at 4200 count)
Resistance Range 420.0 Ω to 42.00 MΩ, 6 ranges, Basic accuracy: ±2% rdg. ±4 dgt.
Other Functions Continuity: Buzzer sounds at 50 Ω ±40 Ω or less, Data hold, Auto power save, Drop-proof from height of 1 meter
Display LCD, max. 4199 dgt., Display refresh rate: 400 ms
Power Supply Coin type lithium battery (CR2032) ×1, Continuous use 70 hours
Core Jaw Diameter φ 33 mm (1.30 in)
Dimensions and Mass 57 mm (2.24 in) W × 181 mm (7.13 in) H × 16 mm (0.63 in) D, 100 g (3.5 oz)
Included Accessories CARRYING CASE 9398 × 1, TEST LEAD L9208 × 1, Coin type lithium battery (CR2032) × 1, Instruction manual × 1