Fluke 177 True-RMS Digital Multimeter

Fluke 177 True-RMS Digital Multimeter is rated 4.9 out of 5 by 18.
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  • Fluke 177 True RMS Digital Multimeter
  • Fluke 177 True RMS Digital Multimeter
  • Fluke 177 True RMS Digital Multimeter

Key features

  • True-RMS digital multimeter with the features professional technicians prefer
  • Increases productivity with manual and automatic ranging, Display Hold, Auto Hold, and Min/Max-average recording
  • Measures AC and DC voltage to 1000 V
  • Delivers accurate True-RMS AC current and voltage plus frequency, capacitance, resistance, continuity and diode measurements
  • Safety rated CAT III 1000 V, CAT IV 600 V

Product overview: Fluke 177 True-RMS Digital Multimeter

Fluke 177 True-RMS Digital Multimeter delivers the right features for electrical maintenance experts

With its precision, reliability, and ease of use, the Fluke 177 Digital Multimeter is the preferred solution for professional technicians worldwide. Independently tested for safe use in CAT IV 600 V/CAT III 1000 V environments, the Fluke 177 Includes all the features you need to troubleshoot and repair many problems in electrical and electronic systems.

With the Fluke 177 Digital Multimeter you get True-RMS voltage and current measurements, 6000-count resolution, manual and automatic ranging, and frequency, capacitance, resistance, continuity, and diode measurements. In addition, the Fluke 177 provides 0.09% basic accuracy, a digital display with analog bar graph and backlight. Plus a limited lifetime warranty.

Other useful features:

  • Features digital display with backlight for working in dim lighting
  • Allows closed case calibration through front panel
  • Features an ergonomic case with integrated protective holster
  • Comes with a limited lifetime warranty

What's in the box:

  • Fluke 177 Digital Mutlimeter
  • (1 pair) Test leads
  • 9V Battery (Installed)
  • Quick reference guide

Specifications: Fluke 177 True-RMS Digital Multimeter

Voltage DCAccuracy1±(0.09% + 2)
Max. resolution0.1 mV
Maximum1000 V
Voltage ACAccuracy1±(1.0% + 3)
Max. resolution0.1 mV
Maximum1000 V
Current DCAccuracy1±(1.0% + 3)
Max. resolution0.01 mA
Maximum10 A
Current ACAccuracy1±(1.5% + 3)
Max. resolution0.01 mA
Maximum10 A
ResistanceAccuracy1±(0.9% + 1)
Max. resolution0.1 Ω
Maximum50 MΩ
CapacitanceAccuracy1±(1.2% + 2)
Max. resolution1 nF
Maximum10,000 µF
FrequencyAccuracy1±(0.1% + 1)
Max. resolution0.01 Hz
Maximum100 kHz
1. Accuracies are best accuracies for each function
Environmental Specifications
Operating temperature-10°C to +50°C
Storage temperature-30°C to +60°C
Humidity (without condensation)0% – 90% (0°C – 35°C)
0% – 70% (35°C – 50°C)
Safety Specifications
Overvoltage categoryEN 61010–1 to 1000 V CAT III
EN 61010–1 to 600 V CAT IV
Agency approvalsUL, CSA, TÜV listed and VDE Pending
Mechanical and General Specifications
Size43 x 90 x 185 mm
Weight420 g
Battery lifeAlkaline ~200 hours typical, without backlight

Models: Fluke 177 True-RMS Digital Multimeter

Fluke 177
Fluke 177 True RMS Digital Multimeter
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  • Installed 9V battery
  • Test leads
  • Users manual

Does the 177 Measure milliamps and millivolts

Asked by: Jas58
Yes, the Fluke 177 True-RMS Digital Multimeter measures milliamps and millivolts.
Answered by: FlukeCorporation
Date published: 2024-04-26

Can the 177 be used to check phase rotation direction?

Asked by: Barney1982
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Rated 5 out of 5 by from Design Consistency I purchased my Fluke 177 DMM over ten years ago and it still functions properly. I just purchased this new one for my sister, and it looks and functions exactly the same. Its nice to see that Fluke has avoided the cosmetic re-design fetish that plagues so many other manufacturers -- now I won't need to learn how to use the new DMM before I teach her how to use it.
Date published: 2023-04-10
Rated 5 out of 5 by from Great as always This is my second Fluke and just like my first one it’s great. Only reason I bought this one was because my other Fluke screen is getting hard to read now that’s it’s 15 plus years old other than that it still works great as a backup.
Date published: 2021-08-02
Rated 3 out of 5 by from A good meter I've used this everyday for 1-1/2 years and it definitely gets the job done for commercial electrical / fire alarm installations. I got it calibrated at 12 months to keep it accurate. The only features I wish it would have are 10,000 counts instead of 6,000 counts, Low-Z (stray voltage adaptor is a hassle), especially since more electronics are being incorporated into the industry.Other than my wants it's a very reliable meter to use and have.
Date published: 2017-09-17
Rated 5 out of 5 by from Portable and Functional I purchased 2 Fluke 177's for our shop at work. They are light weight, portable, and accurate. They are rugged enough to stand up to the demands of our heavy industrial facility. It is nice to see a high quality product with a quality warranty still available in a world of disposable tools.
Date published: 2016-12-12
Rated 5 out of 5 by from Can't do with out it This is the first meter I go to when I am diagnosing an electrical problem, Wether it is testing a fuse, measuring current (AC DC) or checking miliamps this meter has it all, And durable! Have dropped it a few times with no damage
Date published: 2016-12-09
Rated 5 out of 5 by from Especially useful is the "hz" function This is a DVM that I use at work (quite a bit). Besides the typical uses for it (DC voltage and Current), I also work on developing blower and the "hz" function is extremely useful for monitoring the tachometer output (square wave function, freq corresponds to blower rpm)
Date published: 2016-12-08
Rated 5 out of 5 by from Engineer's Dream I bought the 177 about 1.5 years ago at the beginning of my sophomore year in an electrical engineering program, let me tell you, this thing has never missed a beat and is always on the money. I would absolutely recommend this to anyone looking for a quality meter. The only thing I would change is to add a temperature setting but that is addressed in the 179, it wasn’t a feature I thought I needed but I would definitely get it now given my previous projects. Overall, great meter, you won’t regret buying, but I would pick up the 179 for some added functionality.
Date published: 2016-12-07
Rated 5 out of 5 by from Does the Job! This multimeter is robust and does the job! Its ease of use and big display make it a breeze to use. We have about 6 of these at our facility. Hasn't died on us yet.
Date published: 2016-12-07
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