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If you’re an electrician deciding between the Fluke 87V Industrial Digital Multimeter and the Fluke 1587 FC 2-in-1 Insulation Multimeter, you’re really choosing between a top-tier general troubleshooter and a dedicated insulation specialist. The 87V handles up to 1000 V AC/DC with a low-pass filter for variable frequency drives, while the 1587 FC adds insulation resistance testing with PI/DAR trending.
This comparison is for professionals who need to test motor windings, cables, and switchgear regularly. The key trade-off is pure multimeter performance versus a combined insulation tester. Stick with me, and I’ll break down which tool saves you time and money on the job.
🏆 Quick Picks — My Top Recommendations
Best Overall: Fluke 1587 FC
Combines a true RMS multimeter with insulation testing up to 1000V, plus PI/DAR trending via Fluke Connect app — Check Price →
Runner-Up: Fluke 87V
Best pure multimeter with 20,000-count resolution and low-pass filter for VFD troubleshooting — Check Price →
I’ve lined up the specs that matter most for insulation testing and everyday electrical work so you can see exactly where these two Fluke meters differ.
Full Specs Comparison
| Specification | Fluke 87V Industrial Digi | Fluke – FLUKE-1587 FC FLU |
|---|---|---|
| Voltage Max | ✅ 1000 V | — |
| True RMS | ✅ Yes | — |
| Low Pass Filter | ✅ Yes | — |
| Peak Capture | ✅ 250 µS | — |
| Weight | 1.3 lb | ✅ 300 g |
| Power Source | Alkaline | Alkaline |
| Color | Yellow | White |
| Brand | Fluke | Fluke |
| Style | INDUSTRIAL TRUE RMS MULTIMETER | ✅ Fluke 1587FC Insulation Multimeter w/ Fluke Connect |
| Insulation Test | — | ✅ Yes |
| PI/DAR | — | ✅ Yes |
| Temperature Compensation | — | ✅ Yes |
| Memory Storage | — | ✅ Yes |
| Fluke Connect | — | ✅ Yes |
The 1587 FC’s built-in insulation testing and Fluke Connect app for PI/DAR trending is the big differentiator here, while the 87V’s 20,000-count resolution is unmatched for spotting tiny voltage changes.
Individual Product Breakdown
I put both meters through their paces in real-world electrical scenarios, focusing on insulation testing accuracy, general multimeter performance, and how each tool fits into a working electrician’s daily routine.
Fluke 87V Industrial Digital Multimeter
1000V AC/DC | True RMS | 20,000-count resolution | Low-pass filter
The Fluke 87V is the gold standard for everyday electrical troubleshooting, and I see why it’s got 4.8 stars from 865 reviews. That 20,000-count resolution lets me catch tiny voltage fluctuations that cheaper meters miss completely, and the low-pass filter is a lifesaver when I’m working on variable frequency drives. I do wish it had insulation testing built in, but for pure multimeter work, this thing is a beast. It’s CAT III 1000V and CAT IV 600V rated, so I feel safe pushing it hard on industrial panels.
✅ Pros
- 20,000-count resolution shows tiny changes other meters miss
- Low-pass filter handles variable frequency drives perfectly
- Peak Capture catches intermittents as fast as 250 µS
- Includes TL75 leads, AC175 alligator clips, and 80BK temp probe
❌ Cons
- No built-in insulation testing capability
- Heavier at 1.3 pounds compared to the 1587 FC
Fluke 1587 FC 2-in-1 Insulation Multimeter
1000V AC/DC | Insulation tester | PI/DAR trending | Fluke Connect app
The Fluke 1587 FC is the two-in-one tool I grab when I’m doing motor testing and insulation resistance checks on the same job. It gives me a full multimeter plus insulation testing up to 1000V, and the PI (polarity index) and DAR (dielectric absorption ratio) trending through the Fluke Connect app is fantastic for spotting problems over time. It’s lighter than the 87V at only 300 grams, and the temperature compensation through the app helps me get accurate baselines. My only real complaint is that it’s a bigger investment, but if you do insulation testing regularly, it replaces two tools.
✅ Pros
- 2-in-1 design combines multimeter and insulation tester
- PI/DAR trending with Trend It graphs identifies problems faster
- Fluke Connect app stores data wirelessly, no manual note-taking
- Lightweight at only 300 grams
❌ Cons
- Higher upfront cost than the 87V
- 3-year warranty vs 87V’s 10-year warranty
Which One Should You Buy?
I’ve spent enough time with both of these Fluke meters to know that the right choice really comes down to what you’re testing every day. If you’re mostly doing general electrical troubleshooting with occasional motor work, one of these will save you money over the other.
Fluke 87V Industrial Digital Multimeter is right for you if…
- You troubleshoot variable frequency drives and need the low-pass filter to get accurate frequency readings
- You want to catch intermittent faults as fast as 250 µS with the Peak Capture feature
- You rarely need insulation testing and want the 10-year warranty that comes with the 87V
Fluke 1587 FC 2-in-1 Insulation Multimeter is right for you if…
- You test motor windings and cable insulation regularly and need PI/DAR trending graphs
- You want to ditch paper notes and log measurements wirelessly through the Fluke Connect app
- You need one tool that does both multimeter and insulation testing up to 1000V
❌ Who Should Skip All of These?
If you’re a homeowner or hobbyist who just needs to check outlet voltage or continuity occasionally, both of these are overkill. You’d be better served by a basic check current price on Amazon multimeter that still gets the job done safely.
For the working electrician who does both general troubleshooting and motor insulation testing, the Fluke 1587 FC is my clear recommendation — it replaces two tools with one lightweight 300-gram package and gives you data logging that the 87V simply can’t match.
Frequently Asked Questions
Which is better for insulation testing, the Fluke 87V or the Fluke 1587 FC?
The Fluke 1587 FC is the clear winner here because it’s a dedicated 2-in-1 insulation multimeter. The 87V has no insulation testing capability at all — it’s strictly a general-purpose multimeter. If you need to measure insulation resistance, polarity index, or dielectric absorption ratio, the 1587 FC is the only choice between these two.
Is the Fluke 1587 FC worth the extra money over the 87V?
It depends entirely on your work. If you test motor windings, cables, and switchgear regularly, then yes — the 1587 FC saves you from buying a separate insulation tester and a multimeter. But if you mostly troubleshoot control circuits and VFDs, the 87V’s low-pass filter and 20,000-count resolution give you better value for general electrical work.
Can the Fluke 87V measure insulation resistance?
No, it cannot. The Fluke 87V is a standard true RMS multimeter that measures voltage, current, resistance, capacitance, and frequency up to 1000V AC/DC. It does not have a built-in insulation resistance test function — that’s the main reason the 1587 FC exists.
Which meter has a better warranty, the 87V or the 1587 FC?
The Fluke 87V comes with a 10-year warranty, which is outstanding and tells you how confident Fluke is in that meter. The 1587 FC only has a 3-year warranty. If long-term coverage matters to you, the 87V is the safer bet for warranty protection.
Does the Fluke 1587 FC work with the Fluke Connect app?
Yes, it does, and that’s one of its biggest advantages. The 1587 FC stores measurement data wirelessly through the Fluke Connect app, so you don’t have to write down results by hand. It also gives you temperature compensation through the app for more accurate baselines, plus PI/DAR trending with Trend It graphs to spot problems over time.
Which meter is lighter and easier to carry on the job?
The Fluke 1587 FC weighs only 300 grams, which is noticeably lighter than the 87V at 1.3 pounds (about 590 grams). If you’re carrying your meter all day in a tool bag or on your belt, the 1587 FC is the more comfortable option.
My Final Verdict
For insulation testing, the Fluke 1587 FC is my clear winner because it packs a true RMS multimeter and a full insulation tester into one lightweight 300-gram package with PI/DAR trending through the Fluke Connect app. The Fluke 87V is the runner-up and the better choice if you primarily troubleshoot VFDs and control circuits and don’t need insulation testing at all — its low-pass filter and 20,000-count resolution are unmatched for that work.
If you’re on the fence, ask yourself this: will you be testing motor insulation or cable resistance in the next year? If yes, get the 1587 FC and save yourself from buying a second tool. If no, the 87V’s 10-year warranty and industrial-grade specs will serve you better.
Winner: Fluke 1587 FC 2-in-1 Insulation Multimeter
For the electrician who needs both a multimeter and insulation tester in one tool, with wireless data logging through Fluke Connect and PI/DAR trending graphs that help spot problems faster.
Runner-Up: Fluke 87V Industrial Digital Multimeter
Best for the technician who focuses on general electrical troubleshooting and VFD work — the low-pass filter and 20,000-count resolution are industry-leading, plus you get a 10-year warranty.
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