Fluke 324 Review 2024 [True RMS Clamp Meters]

Users highly recommend Fluke multimeters as the brand offers sturdy, precise, and reliable digital meters. So, if you want a device that you can depend on for your DC, AC, resistance, temperature, and other electrical tests, then this is a nice brand to invest in.

The Fluke 324 is one of the three Fluke 320 series multimeters. This Fluke multimeter series offers 323, 324, and Fluke 325 TRMS meters. In this review, we’re going to discuss the Fluke 324 clamp digital multimeter.

The Fluke 324 is a True-RMS multimeter, thus good for delivering accurate and fast results. It is compact in design and sturdily built to defy tough working conditions. It has an ergonomic and compact design for easy handling, and it can fit in the tightest places. This clamp multimeter can measure up to 400 A in small areas, and it can be operated hands-free by attaching the meter to the working surface.

Technical Specifications Of The Fluke 324 clamp digital multimeter

Features Fluke 324 
AC current: Range: 40.00 A / 400.0 A
Accuracy: 1.5% ± 5 digits (45 Hz to 400 Hz)
Note: Add 2% for position sensitivity
DC current: Range:
DC volts: Range: 600.0 V
Accuracy: 1.0% ± 5 digits
AC volts: Range: 600.0 V
Accuracy: 1.5% ± 5 digits
Resistance: Range: 400.0 Ω/ 4000 Ω
Accuracy: 1.0% ± 5 digits
Continuity: ≤ 30 Ω
Capacitance: 0 to 100.0 μF / 100μF to 1000 μF
Contact temperature: -10.0°C to 400.0°C (14.0°F to 752.0°F)
Data hold: Yes
AC Response: True-RMS
Backlight: Yes
Category rating: CAT III 600 V
CAT IV 300 V
Batteries: 2 AAA batteries are required. (included)
Warranty: Two-year
Price: Check Price

If you’re looking for an affordable and accurate Fluke multimeter for your electrical appliances, then this Fluke 324 multimeter review is a must-read.

Summary of Contents

Features Review


Having a unit that you can rely on is vital if you want to use the multimeter for a long. The Fluke 324 multimeter is durably made of robust and sturdy plastic. This will withstand tough work areas that electricians work in on a daily basis. Besides, it has a sturdy carrying case that protects the device and makes transportation easy. You can measure up to 400A with this small and rugged clamp meter.

Related article: Should you buy a Fluke 287 over Fluke 289 multimeter in 2024?

In addition to its durable construction, this device is lightweight and compact for easy handling. That’s why it is ideal for use in tight places.


Another vital feature of the 324 DMM is its display. Even though the multimeter is compact in design, it still features a nice and clear screen that shows all the results being measured. The screen is backlit, which means that it can still be utilized to read measurements in poorly lit or dark areas. But unlike the Fluke 87V professional digital multimeter, this unit doesn’t consume a lot of power, even if you use the backlit in most cases.

Check Price


This is not your basic multimeter, as professional electricians and experienced HVAC technicians can use it. This HVAC multimeter is great for measuring basic and advanced functions. It can test voltage, current, continuity, temperature, resistance, and several other residential and commercial electrical issues. It will give you accurate measurements of non-linear signals. However, you need to keep in mind that it measures currents of up to 400 A and resistance of up to 4 kΩ. Other ranges include AC/DC voltage of up to 600V and continuity of up to ≤30 Ω. Keep these in mind when selecting your unit.


A good professional multimeter should offer accurate measurements all the time. Wrong measurements can cause you to be electrocuted or even some other serious issue. Being a professional-grade meter, the Fluke 324 unit is a True-RMS tool, which implies that it can provide precise results even on non-linear signals. To offer consistently accurate data, Fluke 324 comes with True RMS AC voltage with temperature and capacitance measurement. This is an important feature, especially if you deal with advanced electronics or want accurate results before fixing any electrical appliance.

Hold Function

If you’re a busy person and want a unit that will allow you to perform several duties at once, then you will like this gadget. The data hold button or function helps you pause the unit results and record them before overwriting them. Note that when you overwrite the info, it will be lost, and you will have to repeat the test.

Related article: Check the features of Fluke 117 and Fluke 115multimeters

Moreover, this is a silent unit that allows you to carry out your tests without making a noise like some units on the market.

Intuitive user interface

From a compact design to the clamp meter and backlit screen, the Fluke 324 is ergonomically constructed for simple use. All the buttons are clearly labeled, and it comes with a user manual for guiding newbies or even pros on how to utilize it. Regardless of whether you’ve got knowledge about using multimeters or not, this device won’t be a problem.


If you want a very basic multimeter for performing simple electrical tests, then this is not the device for you, as it comes with more than that. Also, it is slightly more costly than the Fluke 101 basic portable multimeters making it great for serious DIYers or professional electricians looking for affordable digital multimeters.


This is another good reason why you should buy the Fluke 324 true RMS clamp meter. Fluke offers warranties for its product. This varies from one Fluke model to another. The manufacturer offers a 2-year warranty on this model. So, in case the device comes with a defect, you can easily have it repaired or replaced with a new product.

What we liked about the Fluke 324 multimeter

  • Rugged construction
  • Continuity detection temperature and capacitance measurement
  • Large, easy-to-read backlight display
  • Compact and ergonomically designed
  • Wide range of functions
  • Very accurate and fast
  • Hold the button for recording the values later when you’re busy
  • Safe to use with CAT III 600V, CAT IV 300 safety rating
  • 2-year warranty

What we didn’t like about the Fluke 324 meter

  • The Fluke 324 true RMS clamp meter doesn’t come with a DC amp reading. You have to use Klein CL800 for DC measurement.
  • The rubber on the test leads could be slightly thicker for safety purposes

Who is this device best suited for?

Considering that the Fluke 324 is a compact, lightweight, and easy-to-use device, this is a good unit for all people. This includes beginners, DIYers, and professional technicians. The unit is neither very expensive nor cheap, making it ideal for different people. When compared to other products in the same price range, this multimeter offers slightly more features.

Bottom line

The Fluke 324 multimeter is one of the devices in the Fluke 320 series. This is one of the most popular Fluke series, and it offers different meters for different users. The Fluke 324 digital meter is a compact and slim unit great for taking AC voltage measurements in tight places. It offers accurate results, and it is very easy to use. Aside from that, it is well-made to last long and can be utilized by beginners. But this advanced multimeter is ideal for both commercial and residential electricians.

So, whether you’re looking for a basic multimeter for checking smaller circuits or want a stable and reliable tool for testing HVAC appliances, the Fluke 324 will come to your rescue. Sold by one of the most re-known brands on the market, you can fully depend on this unit to deliver, and it has a 2-year warranty.


What is this Fluke clamp meter best suited for?

This is a wonderful digital meter for both beginners and pros, as it comes with exceptional features. It is designed to check the presence of load current, continuity, and AC voltage of switches, circuits, contacts, and fuses. In addition, you can use it to measure temperature, resistance, and DC voltage. This is one of the reasons why it is preferred by beginners, professional technicians, and electricians.

Does the Fluke 324 meter come with a magnet for attaching to a metal surface?

No, it doesn’t. But if you want to operate the device hands-free, then it has a clamp that you can attach to metal or something. Alternatively, you can purchase a Fluke 117 electrician’s multimeter or use a magnet strap around the multimeter. Note that the test leads, which makes setting it in tight places quite challenging.

Can Fluke 324 measure DC Amps reading?

No, you can only measure the AC current with this multimeter. The Fluke 324 measures DC voltage but not DC current.

Can you measure millivolts?

No, a voltmeter is required.

Does the Fluke 324 meter have overload protection?


What does OL mean on this multimeter?

OL means the voltage you are measuring is out of the range of the multimeter. The Fluke 324 auto-ranging meter can measure up to 600V and 400 amps.

Where in the USA or China is the Fluke 324 clamp meter made?

It is made in China.

How does it read the temperature reading?

It uses a thermocouple and measures temperature by contact.

Is the Fluke 324 calibrated?

Yes, it is factory calibrated.

Can you read negative numbers?

Yes, the Fluke 324 shows negative numbers.

Does it have a magnetic attachment system?

It doesn’t have a magnet in the back.

Are a carrying case and leads included?

Yes, the vinyl carry case (synthetic leather) and leads are included in the package.

What can you check with this Fluke 324 multimeter?

Temperature, amps, volts, ohms, and capacitors

Can it operate in freezing temperatures?

Yes, the multimeter can work down to -10°C.

Still, have a question after reading this Fluke 324 Review? Comment below.

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