Best Clamp Meter: Our Top 6 Picks of 2026 Reviewed

Last updated on October 22nd, 2026.

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Are you looking for a good clamp meter?

The best clamp meters have a long battery life, a high safety rating, and will quickly measure voltage and current.

The downside is that there are also poorly made ones that fault constantly, runs out of power quickly, or give you the wrong readings — not fun!

Conversely, a low-quality clamp meter will constantly fault, run out of battery, and can even show you the wrong readings. Not fun.

To help you compare the options, we reviewed the Top 6 Clamp Meters of 2026. 

Compare clamp meter measurement ranges and safety ratings.

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Top 6 Best Clamp Meter

Fluke Clamp Meter

The Fluke 323 clamp meter measures AC currents up to 400 Amps and voltages up to 600V. It is designed for accurate measurements with safety and reliability in mind.

This unit meets CAT IV standards for environments with up to 300 volts. It suits professionals who frequently work on high-voltage tasks.

The true RMS readings are accurate and stable when measuring DC currents from 1 Amp to 4000 amps or resistance from 0 Ω to 4 kΩ (or kilohms), as well as other measurements.

The Clamp Meter measures current without interrupting the flow of electricity. Its clearance of up to 30mm suits cramped areas where you need measurements from farther away.

This clamp meter also has a slim design that makes this device easy enough to slide into your pocket while not in use so that it doesn’t get in the way or take up space on workbenches.

For those of you who like to troubleshoot circuit issues, the Fluke clamp meter has a “continuity sensor” that will beep when it detects electricity up to 70 Ohms.

The ports are on the bottom, which can make plugs hard to connect and the device difficult to prop up.

If your old clamp meter no longer measures voltage or current reliably, consider replacing it for job-site work.

The Fluke 323 is worth considering at this price for its measurement accuracy and manageable weight.

Kyoritsu Clamp Meter

The Kyoritsu clamp meter is one of the best options for customers willing to spend more. Its true RMS sensing provides accurate readings without fluctuations, and its jaw opens 33mm wider than the Fluke model above.

The Kyoritsu can measure AC up to 600 Amps as well as DC from 100-600V with an input sensitivity capable of reading amps or volts at any given time – making it useful for electricians and engineers.

Kyoritsu’s clamp meter measures capacitance up to 4000 microfarads and resistance up to 60 megohms, plus frequencies up to 10kHz. It has a CAT IV rating for 600V and beyond installations.

The Kyoritsu clamp meter runs on AAA batteries, so you don’t need an electrical outlet nearby to power it off when not in use. This is useful if you forget about its battery life, perhaps because the device costs more than most.

The downside is its slightly higher price than competitors, mainly because of its premium status and engineering quality.

The Kyoritsu clamp meter suits electricians who need a long-lasting device for different electrical measurements. Its durability and range of uses help justify the higher price.

Mastech Clamp Meter

The Mastech MS2109A True RMS Digital Clamp Meter is an affordable, well-made option for measuring AC/DC voltage, current and resistance.

The meter is durable enough for busy workplaces. Its jaws do not open as wide as some high-end models, but the opening is large enough for most conductors.

A compact work light and backlit display help you see in low light. The low battery indicator warns you when power is running low, while auto-shutdown conserves the battery.

The Mastech clamp meter costs less than the models above but may take readings more slowly. I recommend considering it if you need an inexpensive, reliable meter.

Milwaukee Clamp Meter

The Milwaukee clamp meter is a good first clamp meter. It is easy to use and durable enough for many years of work.

You can measure the voltage across both AC and DC up to 600V and amperage at 400 amps (though resistance only goes up to 4000 ohms).

For accurate measurements, this device has TRMS – there’s no need to worry if light conditions change when working in dark spaces.

Its backlight also makes the display easier to read while the meter is clamped onto an object or wire. The ruggedized design of this clamp meter also helps minimize damage in case you drop it while on the job.

It cannot measure DC amps and lacks auto-calibration, which kept it below our #1 pick. Some contractors may see those limits as drawbacks, but it still suits basic measurements.

Hioki Clamp Meter

The Hioki is designed for professional electricians who need to measure AC leakage and frequencies up to 1000Hz.

It has an output ranging from 10mA-200A on any conductor with voltage less or equal to 600V, which means there’ll be no surprises when using this meter at home or work.

Hioki has created a clamp meter with many features to ensure accuracy. It provides you the option of using it for linear or non-linear loads, and also comes equipped with an easy to read display screen that can be rotated 360 degrees if needed. Its measurement claims extend further.

The device can measure leaks in home plumbing systems and up 40 inches on cables outside electrical devices at high-voltage power transmission lines, which may not even have been designed yet but are sure to come soon.

In addition, this HiTester 3283 rechargeable battery will last more than 2 weeks without charging so there won’t be any interruptions during use.

Klein Clamp Meter

The Hioki clamp meter suits users looking for true RMS sensing. It works with linear and non-linear loads for readings that are as accurate as possible.

It also has up to 40 hours of battery life, reducing the risk of running out of power while you work.

The major issue with this model lies in its high price combined with relatively limited versatility – while it can measure leaks effectively, other measurements such like voltage or current aren’t supported by the HiTester 3283 making it less than ideal if you’re measuring anything beyond leakage detection.

To ensure that this clamp meter is as accurate as possible, the designers integrated True Root Mean Squared technology. However, its limitations mean we could not rate it above the Fluke model.

For example, its thermocouple readings are very inaccurate, and it feels less durable than models such as the Fluke 323 clamp meter. For these reasons, consider another option on Amazon, such as our top pick, before buying this Klein Clamp Meter.