Top 10 Best Clamp Meters of 2022 | Reviews & Guide

Written By Kim Goodwin is reader supported. When you buy through links on our site, we may earn an affiliate commission at no cost to you.

Electricity is one of the most essential invented resources in the World, and we can’t think of our lives without electricity. We use lots of electrical appliances in our routine, so we have to do improvements and repairs on electrical systems for a particular period.

There are lots of different tools available for electrical systems. If you are an electrician or technician, undoubtedly a Clamp meter is one of the essential tools you need in your toolbox. Not only for electricians, but it is also a necessary tool for all categories of fields in this modern life.

Most of us have been using tools like a screwdriver, cutting player, wrench, and other hand-tools in our home. Clamp meter also one of the vital handheld tools in the list that used to measure the current flows of the electrical system in your home and avoid electrical accidents.

Earlier, Clamp meters used to measure the highest AC or circuit loading, but the latest digital Clamp meters measure the voltage and resistance. You can measure the current fluctuation in the appliances using the Clamp meter.

If you want to know the charge of your battery, you can find it by connecting it to the Clamp meter. Like this, you can measure the motor of your dryer and various home as well as commercial electrical appliances. These measurements provide an accurate result as per your need to ensure your safety.

The Clamp meters come with different types, features, and designs on the market. It is not easy to choose the best clamp meter if you don’t know about the technical elements because you have a lot of choices.

Table: Top 10 Best Clamp Meters of 2022

Fluke 323 True-RMS Clamp MeterFluke 323 True-RMS Clamp Meter[5]
Klein Tools CL800Klein Tools CL800 Digital Clamp Meter[4.9]
Amprobe AMP-210 Clamp MeterAmprobe AMP-210 Clamp Meter[4.8]
Etekcity Auto-Ranging Clamp Meter[4.7]
UEi Test Instruments DL369 Digital Clamp-On MeterUEi DL369 Digital Clamp-On Meter[4.7]
Tacklife CM01ATacklife CM01A Clamp Meter[4.6]
Fluke 324 True RMS Clamp MeterFluke 324 True RMS Clamp Meter[4.6]
Milwaukee 2235-20 400 Amp Clamp MeterMilwaukee 2235-20 400 Amp Clamp Meter[4.5]
Uni-T B4Q094 UT210EUni-T B4Q094 UT210E Mini Clamp[4.5]
Extech MA445 Clamp Meter[4.3]

Best Clamp Meters – 10 Products Reviewed

To help you in this, we have reviewed top brands in the market based on the features, designs, and quality to the way of assisting you in choosing the best clamp meter.

1. Fluke 323 True-RMS Clamp Meter

Fluke is one of the respected brands on the market for electrical measurements. This Fluke 323 can provide reliable measures for amperage, voltage, and resistance that’s why it took the first place in our list.

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Technical Specifications & Features

  • Measures AC up to 400 amp
  • Measures both AC and DC voltages up to 600 V
  • Measures resistance up to 4-kilo ohms
  • 7 ounces weight
  • Contains Audible Continuity Sensor

If you are searching for a reliable clamp meter to measure the voltage and resistance of the current, you can’t deny Fluke 323 digital clamp meter. It provides accurate measures for both commercial and household electricians. Moreover, it has a reasonable size. This clamp meter designed with the true RMS sensing meter that shows the accurate measures for both direct and indirect loads.

In these measurements, you no need to worry about the wave signs provided to the tool because the RMS technology gives an accurate solution no matter what the signs. It protects you from lots of troubles and avoids the prediction. Every time, there is a signal path between the edges, and you can listen to the tone that comes from the meter. Therefore, it is best for cable testing or signal paths tracing.

This clamp meter uses broad jaws while measuring the flow of electricity. The jaw opening measures the conductor electricity accurately up to 30mm, which contains enough place to measure without interruption of the circuit.

Fluke 323 clamp meter is equipped with the beeper for the continue troubleshooting without glancing the meter, and it runs silently. The professionals believe the Fluke because of its accuracy and reliability. The overall estimation of the Fluke 323 comes with a reasonable price and excellent features.


  • Accurate measurements
  • Easy to operate
  • Contains True RMS


  • Doesn’t measure DC amps

2. Klein Tools CL800 Digital Clamp Meter

Klein CL800 is another high-quality clamp meter for commercial and home applications. It is also one of the famous brands for electrical devices available in the market. 

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Technical Specifications & Features

  • Measures both AC and DC voltages
  • Measures AC up to 600 amps
  • 12.5 ounces
  • Automatic Ranging and True RMS technology
  • Have Thermocouple probes

This Klein CL800 clamp meter can measure both AC and DC voltage with resistance, capacitance, test diodes as well as the frequency accurately. It has the functionality suitable for both residential and industrial electricians. Furthermore, this clamp meter has some important features like flashlight, voltage detector, and low impedance mode.

If you are searching for a quality clamp meter for your professional usage, Klein CL800 is the most recommended one for you. It has the right RMS technology that allows you to read AC voltage and current at high accuracy easily, and it gives proper measurements.

Moreover, it equipped with a thermocouple probe which helps you to measure the temperature quickly and accurately. This measurement is more accurate than the others used in ordinary clamp meters.

This clamp meter finds your measurement type and provides proper changes. This tool is constructed with solid materials so it will not break even if dropped from a height of 2 meters. Furthermore, the battery part is convenient to use and maintain, and also it has a low battery indicator.

It is working between 32F to 104F temperature, which means you can use this in various locations and environments, and its height ranges up to 2000 meters. CL800 comes with an LCD screen to show the accurate readings, and also it features a backlit display for easy reading. If you are the electrician who works in the dark and never expects the additional tool, this clamp meter is a perfect one for your needs.


  • Excellent flashlight
  • Provides high accuracy
  • Contains low impedance mode


  • The screen may close at a particular angle

3. Amprobe AMP-210 Clamp Meter

If you have an old clamp meter and want to replace it with a new one, the best choice would be Amprobe AMP 210 clamp meter. It has a better improvement among other Amprobe clamp meters, and you should consider the excellent quality of this.

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Technical Specifications & Features

  • Measures AC up to 600 amps
  • Measures both AC and DC voltages up to 600V
  • Contains large LCD backlit display
  • 1 pound weight
  • Includes True RMS technology

Amprobe AMP-210 clamp meter provides a high range of features for measuring the electrical appliances of the latest technologies. It measures AC up to 600 amps; hence, it is a suitable clamp meter for AC amps, and it measures AC and DC voltages also. 

This clamp meter provides an accurate measurement of current, voltage as well as frequencies with all kinds of electrical systems like distorted, non-sinusoidal signals and frequency drivers.

Its Amp-Tip function provides accurate readings of current up to the tenth of Amp, and it allows proper current measurement of any size diameter wires. It features real RMS technology, low pass filters, and fast response processors for quick, error-free measurements.

Real RMS sensing technology allows you to measure the electrical fluctuation accurately. The low pass filter helps you to measure the current and voltage in the frequency drivers. It may be hard or went wrong without this feature.

Its slim design makes it an ideal clamp meter for use in confined spaces. It contains two AAA batteries; hence, you can use this right now. Using its carry case, you can carry this wherever you go without facing any difficulty.

This Amprobe clamp meter is trusted by all residential and industrial electricians, HVAC technicians because of its excellent features and performance. It is a rugged electrical testing tool with verified quality that ensures safety.


  • Natty operation
  • Highly improved safety
  • Large backlit LCD screen


  • Absence of temperature measurement

4. Etekcity Auto-Ranging Clamp Meter

When you are searching for the best clamp meter for auto-ranging measurements and HVAC, the name Etekcity comes up a lot. This brand is famous for producing high-quality electrical tools and devices. It used in different types of tests, like diode and continuity tests.

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Technical Specifications & Features

  • Measures AC up to 400 amps
  • Measures AC and DC voltages up to 600V
  • 13.6 ounces weight
  • Measures resistance up to 20Megaohms
  • Jaw opening measures in a conductor up to 26 mm

This high-quality clamp meter made of industrial-grade materials with the latest technology; hence, it is a worthy purchase. It is used to measure the AC and DC voltage, resistance, continuity, and diode checking. This clamp meter contains great features like data hold, max reading, and a wide LCD screen to show the readings. To preserve power, it turns into auto-sleep after 15 minutes of inactivity.

This Etekcity clamp meter allows you to done continuity, diode tests, and gets quick results. The jaw opening feature precisely measures the AC in a conductor up to 26 mm moreover, this clamp meter can able to do this without affecting the circuit. Furthermore, this Etekcity clamp meter can able to record your past measurements using data hold feature.

With a comfortable carrying case, you can bring this wherever you go. It equipped with a chemical battery that keeps the battery life up to 150 hours. Its LCD screen permits it to read the measurements precisely; hence, this is welfare for those who are struggling with readings. 

The way of its construction never breaks the circuits while measuring. With its robust test handle probe, you can measure quick and safely. This clamp meter provides fantastic features for household repairs using its 400 amp capacity. Most of the customers feel this Etekcity clamp meter comes with a reasonable price and the features they expected.


  • Auto-sleep mode preserves energy
  • Gives accurate measurements
  • Records the previous measurements


  • Not enough resistance

5. UEi Test Instruments DL369 Digital Clamp-On Meter

UEi DL369 is one of the best tools for electricians and technicians who need a simple yet precise electric measure tool. It is one of the varieties of clamp meter which can measure various ranges without compromising the quality.

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Technical Specifications & Features

  • Measures AC up to 400 amps
  • Measures AC voltage up to 750V and DC up to 1000V
  • 0.65 ounces weight
  • Measures resistance up to 400 milliohms
  • Contains low battery display lock

If it is an adjustment or primary electrical preservation, this clamp meter efficiently tests the circuits, measures circuit loading and any current on live conductors. It contains dual display so you can read your measurements.

This DL369 clamp meter maintains the correct balance between usability and capabilities, but it is not a simple task to pull for sure. 

UEi test instruments have over 50 years of experience in designing and manufacturing excellent tests and measuring tools. Experts know the UEi brands for its excellence and new technologies intended to solve the real-world difficulties.

This clamp meter contains test leads so that you can verify electrical measurements right now. It can do various kinds of measures for resistance, frequencies, capacitance, AC/DC voltages, and amps. By these types of multi-functional capacity, you can do lots of measurements accurately. Moreover, you can able to do a complete evaluation of a circuit using its features without any problems.

Here, it constructed with an auto-shutdown feature to preserve the energy that activates if there is no activity for a particular period. 

A low battery display indicator comes with the DL369 clamp meter to avoid sudden power off.

The data hold feature is used to keep your previous measurements, and it is a convenient feature for electricians and DIY experts. The sturdy construction of this clamp meter makes this ideal for outdoor usages.


  • Precise measurements
  • Created to use in difficult situations
  • Versatile applications


  • Less accuracy

6. Tacklife CM01A Clamp Meter

Tacklife CMO1A is a clamp meter that measures current safely, efficiently, and quickly. It is completly a smart clamp meter. With one press of the button, you will get your measurements.

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Technical Specifications & Features

  • Measures AC up to 200V
  • Measures AC and DC voltages up to 600V
  • 13.8 ounces weight
  • Contains low battery indicator
  • Jaw opening up to 26 mm

This clamp meter can measure AC, resistance, frequency, continuity, and AC/DC voltages, and it is tightly closed to decrease the interruption from the external components. This CM01A contains an LCD backlit that helps you to read the measurements easily, and it provides data hold function to keep the readings you make previously.

This CM01A constructed keeping versatility in mind. Therefore, you can use this to troubleshooting multiple electrical problems accurately. Further, it has lots of safety features that you can use for your vehicles, home appliances, as well as industrial tools.

Its jaw opening feature makes AC/DC measurements precisely up to a 26mm conductor, and this clamp meter makes these measurements without causing any circuit interference or crack. 

The flashlight in the clam meter helps you to measure even in the darkness, and an LCD screen improves the clarity of reading.

It contains a low battery indicator that reminds you to charge when the battery gets low to avoid unexpected power-off. The clamp meter gets automatically shut down if there is no activity for over 15 minutes.

CM01A clamp meter featured with a non-contact voltage detection that senses live AC wiring. Using its overload protection, you can measure without causing any injury. Moreover, the Zero function of this clamp meter reduces the data error and increases the accurate measurement.


  • Measures various ranges
  • User-friendly tool
  • Includes many safety features


  • Instructions available only online

7. Fluke 324 True RMS Clamp Meter

Fluke 324 is another one model from Fluke on our list. Once you have attached this tool on the electrical appliance, you will get to use various functions. But, Fluke 324 has the same AC and DC measurement capacity as 323.

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Technical Specifications & Features

  • Measures AC up to 400 amps
  • Measures both AC and DC voltages up to 600V
  • 1.2 pounds of weight
  • Measures resistance up to 4kilo ohms
  • Jaw opens up to 30 mm

Fluke 324 is an excellent clamp meter in the market for professionals. It built to be a great correction tool for household electrical benefits of managing the presence AC voltage load on the circuit, switch, and fuse.

The difference from 323 to this model is that it can measure both temperature and capacitance up to 1000 mF. It is essential for those who handle with HVACs. Further, it equipped with a backlit feature that enables you to use it in dark areas. Using this clamp meter, you can measure the resistance up to 4 kilo-ohms.

This clamp meter contains the RMS technology that allows you to measure the linear or non-linear electric loads with high accuracy. Its jaw opens up to 30mm to measure the current in the electrical appliances without breaking the circuit. The audible sensor is used to give you alerts to know if there is current flow.

The 324 clamp meter is designed to check the presence of current, AC/DC voltage and continuity of circuits. These small yet strong clamp meters are ideally suited for measurements of current up to 400A in tight cable compartments. This model has the capabilities of temperature and capacitance measurements. The thin and workaholic design of this clamp meter perfectly fits in your hand to perform different measures, and result displayed in the easily readable display.


  • Versatile features
  • Thin and portable design
  • Temperature measurements


  • Lacks of analysis in low temperature

Here is the video about how to use fluke 324 clamp meter

8. Milwaukee 2235-20 400 Amp Clamp Meter

If you are a clamp meter fan, I’m sure you will like this Milwaukee 2235-20. It is designed to measure volts, ohms and other readings hence it sold as an all-round clamp meter. Also, this has excellent protection and built as flexible with essential features.

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Technical Specifications & Features

  • Measures AC up to 400 amps
  • Measures both AC and DC voltages up to 600V
  • 1.1 pounds of weight
  • Measures resistance up to 4000 ohms
  • Jaw opens up to 1-inch

This 2235-20 model clamp meter glows in multiple departments due to its easy handling and wide range measuring capability. It includes red and black electrical test leads that enable you to do tests. If you have a problem in dim places no need to worry about that, this clamp meter comes with an LED flashlight. Hence you can get clear visibility. 

The jaw feature uniquely designed to provide fast and straightforward measurements. Real RMS technology used for accurate measurements in all appliances, and it helps both residential and commercial electricians.

It contains the min/max feature that helps you to measure the circuit performance and also this measures the difference and average of high precision. Further, the backlight and LED lights not only make the data reading simple but also makes the working area bright. The rugged construction of this clamp meter makes it easy to hold this, and this easy usage extends its service time.

This clamp meter featured versatile functionalities like measures 400 amps, 4000 ohms, 600 volts of AC and DC and more. Its design enables one to measure any range with high accuracy, and it has longer service time than other clamp meters. The sturdy construction and long wires ensure the reliability of this clamp meter on the market and enhance its versatility to work in the household and industrial tasks.


  • Precise measurements in various ranges
  • Hardy and rugged construction
  • Versatile capacity


  • Limited measures not enough for some

9. Uni-T B4Q094 UT210E True RMS AC/DC Current Mini Clamp

Uni-T is another all-rounder clamp meter with excellent accuracy. It is one of the affordable clamp meters in our list with all the essential features you expect. It comes with standard construction at an affordable price, and it is an excellent addition to the electronic toolbox.

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Technical Specifications & Features

  • Measures AC and DC currents up to 100 amps
  • Measures AC and DC voltages up to 600V
  • 5.9 ounces weight
  • Contains non-voltage detection with LED indication
  • Jaw opens up to 17 mm

Uni-T is designed to measure the current and to make easy measurements and divided into three sets of ranges like 0 to 2A, 0 to 20A, and 0 to 100A. This clamp meter comes with a true RMS sensor that provides accurate measurements. The amp measurements are precise within 5% and the voltage within 3% precise of the measured variable.

I’m sure that it is suitable for troubleshooting than most of the other affordable clamp meters. Using this, you can able to know whether the elements are doing their job, but you can’t get minute details. This clamp meter is combined, endurable, and has a reasonably small range; therefore, it is suitable for the low-risk tasks.

It has no issues in testing residential electrical appliances. This clamp meter also measures resistance, capacitance, and test diodes, and it is very portable, so it provides more comfort. It is the best HVAC clamp meter on our list. It has all the features that a clamp meter must-have.

This Uni-T is an incredible clamp meter, but it has its limitations to measure the amount of current. It used for home appliances to solve simple issues where it performs well. Moreover, it contains a data hold feature to hold all the measurements you make and has the LED display to show your measurements.


  • Great accuracy
  • Measures all kinds of appliances
  • Very convenient


  • Lacks accuracy in industrial measurement

10. Extech MA445 Clamp Meter

Extech MA445 Clamp meter attracts with its intense colors, and excellent construction then joined with its precise due to the combined real RMS feature. It measures the current in the electric appliances and also troubleshooting the issues in that.

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Technical Specifications & Features

  • Measures AC and DC currents up to 400 amps
  • Measures AC and DC voltages up to 600V
  • 9.3 ounces weight
  • Contains large backlit LCD and True RMS technology
  • Jaw opens up to 30 mm

The Extech MA445 clamp meter is designed to measure several functions such as current, voltage, resistance, capacitance, frequency, continuity and diode test, etc. Further, it features with true RMS technology to provide the measurements accurately and quickly without a break in the electric circuit. 

The large LCD permits you to read the measurements easily to avoid the incorrect readings; at the same time, it provides a convenient operation designed with workaholic environments. The additional features are non-contact voltage detector, data hold, zero function, built-in flashlight, and auto shutdown.

This MA445 clamp meter contains 11 primary and excellent functions to measure that permit you to do all tasks in one tool. It has a built-in flashlight to bright your working place helps you to work safely, and the non-voltage detector decreases the risk of injury. The real RMS technology uses advanced features to troubleshoot various electronic appliances.

The data hold function is used to keep your readings until you get a possibility to store your readings. Like this, the min/max feature is used to maintain your low and high values for you to save. The zero function permits the offset adjustment mode. 

This MA445 clamp meter has an automatic shutdown feature that automatically shuts off when there is no action for a period. Also, a low battery indicator gives an alert to recharge your tool.


  • Measures versatile functions
  • Contains auto-shutdown button
  • Provides multi-tasks


  • Absence of handle in carrying case

What are the things to consider when purchasing a Clamp Meter

All clamp meters designed with different features and sizes. It is essential to buy the best clamp meter that gives accurate measurements based on your tasks and working environment. We have tested various clamp meters and their features. 

Let know what is a clamp meter. The clamp meters are designed to solve the electrical problems in different situations. If you are an electrician or anyone handling electrical appliances, it is an essential tool to trace the current to test and prevent the short circuits and power surges. 

Among the lots of electrical equipment, a clamp meter is one of the essential tools used for electrical maintenance and specially designed to troubleshoot the AC and electrical conductors. Before you purchase a clamp meter, you should mind certain things to buy the best one. We have mentioned some of those critical factors so you can utilize that to choose the right one.

1. Accuracy range

The accuracy is the most common factor for all clamp meter, and also it is essential to provide a great result. No one wants a poor accurate clamp meter, but basically, no clamp meter gives 100% accurate reading. The readings should be a little bit closer to the original value. It is very critical in professional needs, but it does not affect household tasks like simple connections and repairs.

2. Functionalities

Clamp meters are designed to measure the electrical parameters, including current, frequency, voltage, capacitance, resistance, continuity, and check diodes. Some clamp meters measure temperature also. All these parameters help you buy a good clamp meter. A suitable clamp meter must have at least standard measurement capability.

3. Features

Usually, the clamp meters come with several features to enhance the measuring ability. It includes features such as real RMS technology, data hold, backlit LCD, non-voltage detection, min/max feature, low battery indicator, etc. You should consider these according to your purpose and budget to make your task easy and comfortable.

4. Security

Clamp meters work with the electricity, and you can’t control the harm of the power; hence, the clamp meter which you buy should have the safety features. The meter which provides the safety conditions have the IEC certificate; therefore, you have to check whether the clamp meter you buy has this certificate. 

5. Aim of use

Like the starting statements, the clamp meter used by the professional technicians as well as for the household, both applications are varied. Therefore, you have to know what kind of clamp meter suitable for your needs. Without knowing this, you shouldn’t make a decision.


We have crossed a lot of reviews and guides of clamp meters and compared the several brands according to their features and quality. Thus, we mentioned some brands of clamp meters to make your purchase carefree. It is essential to compare the quality of clamp meters with its price to check whether the clamp meter is worth for the money you spent. So, the research is critical. However, the final choice is in your hand; hence, you have to choose the best clamp meter based on your needs. I’m sure that you will buy a high featured clamp meter.

About Kim Goodwin

Kim Goodwin holds a Master's in thermal engineering from the University of Rhode Island. At Thermo Gears, she reviews most equipment that uses thermal imaging technologies.

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