Fluke 324 True-RMS Clamp Meter with Temperature & Capacitance

Fluke 324 RMS Clamp Meter is rated 4.3 out of 5 by 17.
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Key features

“It does everything a HVAC or Maintenance Tech would need. Out of 12 guys I work with 9 of them had the 324” - Thomas

  • Rugged, reliable basic True-RMS clamp meter
  • Measure AC current up to 400 A, AC/DC voltage to 600V
  • Measure resistance up to 4kΩ, continuity detection ≤ 30Ω
  • Additions from 323 Clamp: Temperature, Capacitance, Backlight

Product overview: Fluke 324 True-RMS Clamp Meter with Temperature & Capacitance

The Fluke 324 True-RMS Clamp Meter is a reliable, solid troubleshooting tool for commercial and residential electricians, featuring True-RMS measurements, a slim design for easy transport and use, and a large display for efficient troubleshooting. With the addition of Temperature and Capacitance, it has everything an HVAC technician could need.

Troubleshoot problems safely and accurately

  • CAT III 600 V, CAT IV 300 V safety rating
  • Provides True RMS AC voltage and current for accurate measurements on non-linear signals
  • Measures AC current up to 400 A
  • Measures AC/DC voltage to 600V
  • Measures resistance to 4kΩ with continuity detection ≤ 30Ω
  • Measures temperature from -10C to 400C
  • Measures capacitance to 1000μF
  • Backlight and hold function captures a reading on the display
  • Comes with a two-year warranty and soft carrying case

Fluke 320 Series Clamp Meters for electrical troubleshooting

Clamp family models and feature comparison


  • Fluke 324 True-RMS Clamp Meter
  • TL75 Test Leads
  • Type K Thermocouple
  • Two AAA Batteries (Installed)
  • Soft Case

Specifications: Fluke 324 True-RMS Clamp Meter with Temperature & Capacitance

AC currentRange40.00 A / 400.0 A
Accuracy1.5% ± 5 digits (45 Hz to 400 Hz)
Note: Add 2% for position sensitivity
DC currentRange-
AC voltageRange600.0 V
Accuracy1.5% ± 5 digits
DC voltageRange600.0 V
Accuracy1.0% ± 5 digits
ResistanceRange400.0 Ω/ 4000 Ω
Accuracy1.0% ± 5 digits
Continuity≤ 30 Ω
Capacitance0 to 100.0 μF / 100μF to 1000 μF
AC responseTrue-RMS
Data holdYes
Contact temperature-10.0°C to 400.0°C (14.0°F to 752.0°F)
SizeH x W x D (mm)207 x 75 x 34
Max wire diameter30 mm (600 MCM)
Weight208 g
Category ratingCAT III 600 V
CAT IV 300 V

Models: Fluke 324 True-RMS Clamp Meter with Temperature & Capacitance

Fluke 324
Fluke 324 True-RMS Clamp Meter
Buy it


  • Fluke 324 True-RMS Clamp Meter
  • TL75 Test Leads
  • Type K Thermocouple
  • Two AAA Batteries (Installed)
  • Soft Case

Reviews: Fluke 324 True-RMS Clamp Meter with Temperature & Capacitance

Rated 1 out of 5 by from Disappointed Bought meter in august 2018. Changed batteries for the first time and one of the negative contacts for battery was broken off. Never had the battery cover off before. Called fluke and was told I could ship the meter back to them at my cost and they would send me a new one for a slightly discounted price! Will not purchase another fluke !
Date published: 2021-03-16
Rated 1 out of 5 by from Did not last! I bought the Fluke 324 in August 2019. Meter stopped working in November 2020, showing a display message of "Low Battery". I replaced the batteries with a new set and still the meter won't work! Doesn't matter what batteries I put in the meter.. still doesn't work! For the amount of money I spent on this meter, and the fact that I take very good care of my tools.. I believe this meter should have lasted A LOT longer than it did! According to the Fluke web site, the warranty is for one year. My meter stopped working 3 months after the warranty period!
Date published: 2021-03-02
Rated 5 out of 5 by from Great Gift! Perfect gift for my brother who happens to be an electrician, he absolutely loved it!
Date published: 2020-06-02
Rated 3 out of 5 by from good meter but the resistance range is limited The fluke 324 is good starter clamp meter but for the price you could buy one that actually measures more than 4000 ohms.
Date published: 2016-12-20
Rated 5 out of 5 by from Best all around meter especially for the price. I bought this meter to replace my old one that died on me. It does everything I need to do in the HVAC business. It is very easy to use and has not failed me once. I have had it for about 6 months now. I would buy another in a heartbeat.
Date published: 2016-12-19
Rated 5 out of 5 by from Great Clamp Meter I bought the 324 Meter about a month ago. Used it everyday since then. Works great nice clear read outs. Comes with temperature leads also. It's perfect for testing and maintenance checks.
Date published: 2016-12-15
Rated 4 out of 5 by from Great Tool There are tools for every trade and Fluke definitely proves that you get what you pay for. This 324 Clamp Meter is a good solid tool; very useful for my trade, as an electrician. It does everything it's supposed to, works seamlessly. I would recommend this product to a friend.
Date published: 2016-12-12
Rated 4 out of 5 by from Accurate readings, comfortable, loud audible. Very good product, will buy another one soon to have just for industrial app.
Date published: 2016-12-10
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