Fluke 325 True RMS Clamp Meter

Fluke 325 True RMS Clamp Meter is rated 4.8 out of 5 by 17.
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  • Fluke 325 Clamp Meter|True-RMS Clamp Multimeter | Fluke
  • Fluke 325 Clamp Meter|True-RMS Clamp Multimeter | Fluke
  • Fluke 325 Clamp Meter|True-RMS Clamp Multimeter | Fluke
  • Fluke 325 Clamp Meter|True-RMS Clamp Multimeter | Fluke

Key features

  • Rugged, reliable True-RMS clamp meter with dc current and frequency measurements
  • Measures AC and DC current to 400 A
  • Measures AC voltage and DC voltage to 600 V
  • Provides True RMS AC voltage and current for accurate measurements on non-linear signals
  • Measures resistance to 40 kΩ with continuity detection
  • Measures frequency to 500 Hz
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Product overview: Fluke 325 True RMS Clamp Meter

Fluke 325 True RMS Clamp Meter offers big AC/DC features in a small form factor

The Fluke 325 Clamp Meter is the top of the 320 Series Clamp Meters. Designed to perform in the toughest environments and provide noise-free, reliable results, you can trust the 325 to help you confidently diagnose all kinds of electrical problems. It features True RMS measurements, optimized ergonomics, a large backlight display, and a rugged compact design to measure current up to 400 A in tight cable compartments. You can also use it to measure temperature, capacitance, AC/DC current and frequency. Commercial and residential electricians use the 325 to verify the presence of load current, AC voltage, and continuity of circuits, switches, fuses and contacts. Frequency measurements allow checking of portable generators; dc current testing battery backups and solar storage equipment.

The Fluke 325 comes with a two-year warranty and a soft carrying case.

Other useful features:

  • Provides Min/Max functionality
  • Measures temperature from -10.0°C to 400.0°C (14.0°F to 752.0°F)
  • Presents measurements on a large, easy-to-read backlight display
  • Measures capacitance to 1000 µF
  • Hold function captures a reading on the display
  • Features a CAT III 600 V, CAT IV 300 V safety rating

Useful resources and rugged tools for Solar professionals

Specifications: Fluke 325 True RMS Clamp Meter

AC currentRange40.00 A / 400.0 A
Accuracy2% ± 5 digits (45 Hz to 65 Hz)
2.5% ± 5 digits (65 Hz to 400 Hz)
DC currentRange40.00 A / 400.0 A
Accuracy2% ± 5 digits
AC voltageRange600.0 V
Accuracy1.5% ± 5 digits
DC voltageRange600.0 V
Accuracy1.0% ± 5 digits
ResistanceRange400.0 Ω / 4000 Ω / 40.00 kΩ
Accuracy1.0% ± 5 digits
Continuity≤ 30 Ω
0 to 100.0 μF / 100μF to 1000 μF
Frequency5.0 Hz to 500.0 Hz
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)
Weight283 g
Category ratingCAT III 600 V
CAT IV 300 V

Models: Fluke 325 True RMS Clamp Meter

Fluke 325
Fluke 325 True RMS Clamp Meter
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  • Test leads
  • Soft case
  • User's manual

Reviews: Fluke 325 True RMS Clamp Meter

Rated 4 out of 5 by from very precise, good quality, too little fleatures. I work with high power AC and DC and need a clamp meter i can trust, this one is, it is very precise, the DC A measure is excellent, as to be expected from fluke of course, but the clamp functionality is very basic, no in-rush current, hold function doesn't work like the 97 series do, no power factor measure, no diode measure capability (Basic! come on!) and no THD measure, the Hz measure is awesome because it works with current and voltage, my other clamp meters only measure Hz with voltage, neat feature fluke!, the clamp is tiny and very confortable to use, display is not as good as, let's say the 117 meter, backlight is too dim, i usually work in places with low light and it is an issue for me, overall, i like it, and recommended it, but you should at the very least, add DIODE, in-rush current, and THD measure please.
Date published: 2018-05-18
Rated 5 out of 5 by from Best clamp meter I've owned I've had this meter going on 2 years. I work on HVAC and Automotive repair. I can check older ignitions, charging, circuit draws, and starter systems. It's extremely versatile for HVAC and compressor diagnosis. It's ruggedness makes it useful indoors and outdoors.
Date published: 2016-12-28
Rated 5 out of 5 by from Meter is simple and Reliable I bought this Fluke-325 clamp meter recently at my new company due to my satisfaction with the one I had at a previous employer. It's easy to carry with my computer when I go to customer sites and always reliable for the needs of a controls engineer.
Date published: 2016-12-22
Rated 5 out of 5 by from Durable, Reliable I have had my 325 True RMS meter almost a year. I am very happy with ease of use, and accuracy. However i have a model 36 clamp meter that has lcd issues, ghosting some call it. Not had any luck finding repair parts for the 36 model thus far.
Date published: 2016-12-11
Rated 5 out of 5 by from Best meter for the money! I run HVAC service and use this meter a lot. Always performs, is rugged, and for most measurements I use is the best in it's class. Can't go wrong with this one.
Date published: 2016-12-10
Rated 4 out of 5 by from Good for the money I purchased this amp clamp a few yeas back and its been a great little clamp. It is fast enough to read the changing amps and good price point. It works well as a back up meter or a secondary meter when I need one. I hope to get one with a flex clamp but for now this one still does the job I need it to.
Date published: 2016-12-09
Rated 5 out of 5 by from Feature packed I had the meter for several months. Used it for everything from HVAC to checking amps on a car battery. But someone liked it better than me. I can't wait to get another one.
Date published: 2016-12-08
Rated 5 out of 5 by from Indispensable for maintenance and RV work. This is a great meter that comes with all the necessary functions needed for general industrial maintenance and especially the combined AC/DC, generator and solar-PV systems in RVs. Very nice to carry one meter that makes life easier and work more expedient.
Date published: 2016-12-08
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