Hioki clamp meters are best-in-class measuring devices incorporating Hioki? s expertise in current sensing technology. The CM3291 is a true RMS rectified 2000A AC clamp meter that features a broad operating temperature range of -25? C to 65? C, thin and compact clamp core and optional flexible current sensor that you can attach to let you get into the tightest spots.

CAT IV 300 V
CAT III 600 V
Key Features
??AC only, measure up to 2000 AAC
??-25 ?C to 65 ?C operating temperature range
??Also measure resistance, continuity, AC and DC voltage

Get into tight spaces even with large jaw
The new AC Clamp Meter CM3291 features a new and innovative jaw design that lets you get between narrow cable gaps despite the large jaw offering, improving work efficiency at the worksite. The compact meter delivers a wide measurement range from a few amperes up to 2000 A.

True RMS measurement delivers accurate results for even distorted waveforms.
The waveform including harmonic components is calculated according to an RMS calculation formula and displayed.
True RMS measurement yields accurate display values even when measuring a distorted waveform, for example from an inverter-equipped device or switching power supply.

A pocket clamp meter that can use flexible sensors
When connected to an optional flexible current sensor*, the CM3291 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 FLEXIBLE CURRENT SENSOR CT6280 (4200 A AC, ?130 mm)

Essential for electrical work: A thin card tester that fits in the pocket with all the capabilities of a clamp meter
The CM3291 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 delivers voltage measurement, continuity check, and resistance measurement functionality.

Rugged, portable design that?s drop-resistant
Despite its thin, compact design, the CM3291 has an operating temperature range of -25?C to 65?C and can withstand being dropped from a height of 1 m onto concrete. It?s engineered for use in tough environments.