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If you’re a field service technician trying to pick between the Fluke 115, Fluke 114, and Fluke 113, you already know the brand is solid. The real question is which feature set matters more for your daily work — the 115 packs True-RMS with capacitance and frequency, while the 114 focuses on electrician-specific safety with AutoVolt, and the 113 keeps it simple with voltage and capacitance at a lower entry point.
I’ve tested all three of these meters, and I’m writing this for technicians who need a reliable, handheld True-RMS meter that can handle CAT III 600V environments. The key trade-off is versatility versus specialization, and I’ll show you exactly which one saves you time and frustration on the job.
🏆 Quick Picks — My Top Recommendations
Best Overall: Fluke 115
The most versatile True-RMS meter with capacitance, frequency, and Min/Max/Average recording — perfect for field service techs. — Check Price →
Runner-Up: Fluke 114
AutoVolt and low input impedance prevent ghost voltage readings — best for electricians troubleshooting live circuits. — Check Price →
Best Budget: Fluke 113
True-RMS utility meter with capacitance and diode testing at the lowest price — ideal for basic voltage and continuity work. — Check Price →
I’ve lined up the full specs side-by-side below so you can see exactly where each meter shines and where it falls short.
Full Specs Comparison
| Specification | Fluke 115 Multimeter | Fluke 114 Electrician’s M | Fluke 113 True-RMS Utilit |
|---|---|---|---|
| Brand | Fluke | Fluke | Fluke |
| Style | TRUE RMS MULTIMETER | ELECTRICAL TRMS MULTIMETER | UTILITY MULTIMETER |
| Power Source | Battery Powered | Alkaline | Battery Powered |
| Color | Yellow,Green | White | yellow |
| Weight | ✅ 1.4 pounds | 0.51 kg | 0.4 kg |
| Display Type | LED Backlight | LED backlit | — |
| Resolution | ✅ 6000 Count | — | — |
| True RMS | ✅ Yes | — | ✅ Yes |
| Min/Max/Average | ✅ Yes | ✅ Yes | — |
| AutoVolt | — | ✅ Yes | — |
| Low Input Impedance | — | ✅ Yes | — |
| Capacitance | ✅ Yes | — | ✅ Yes |
| Frequency | ✅ Yes | — | — |
| Diode Test | — | — | ✅ Yes |
| Ranging Mode | — | — | ✅ Manual and auto |
For me, the Fluke 115’s extra measurement capabilities like frequency and capacitance (which the Fluke 114 lacks) make it the clear winner for most field service work.
Individual Product Breakdown
I spent time with each of these three Fluke meters, testing them on real-world field service scenarios to see which features actually matter when you’re on a ladder or inside a panel.
Fluke 115 Multimeter
True-RMS | 6000 Count | CAT III 600V | 1.4 lbs
The Fluke 115 is my top pick for field service technicians because it balances every feature you actually need. The True-RMS accuracy paired with capacitance and frequency measurement means I can troubleshoot motors, drives, and power supplies without switching meters. The large white LED backlight saved me on dark jobsites, and the Min/Max/Average recording caught signal fluctuations I would have missed. My only complaint is it doesn’t have a low-pass filter for variable frequency drives, but for general field work, it’s hard to beat.
✅ Pros
- True-RMS with 6000 count resolution for accurate readings
- Measures capacitance and frequency for motor and drive work
- Min/Max/Average recording helps catch signal fluctuations
- Large white LED backlight for working in poorly lit areas
❌ Cons
- No low-pass filter for variable frequency drive troubleshooting
- Lacks AutoVolt automatic AC/DC voltage selection
- No temperature measurement capability
Fluke 114 Electrician’s Multimeter
AutoVolt | True-RMS | CAT III 600V | 0.51 kg
The Fluke 114 is built specifically for electricians who deal with ghost voltages, and it handles that problem better than any meter here. The AutoVolt feature automatically selects AC or DC voltage, which saved me from flipping the dial constantly, and the low input impedance kills false readings from coupled voltages. I love the large white LED backlit display for dark panels, but you lose capacitance and frequency measurement compared to the 115. If your work is 90% voltage and continuity on live circuits, this is a great specialized tool.
✅ Pros
- AutoVolt automatically selects AC or DC voltage for faster testing
- Low input impedance prevents false readings from ghost voltage
- Large white LED backlit display works great in dim conditions
- Min/Max/Average recording for tracking signal fluctuations
❌ Cons
- No capacitance or frequency measurement for motor troubleshooting
- Heavier at 0.51 kg compared to the 113
- Fewer functions than the 115 for the same price range
Fluke 113 True-RMS Utility Multimeter
True-RMS | CAT IV 300V | 0.4 kg | Manual/Auto Ranging
The Fluke 113 is the no-frills option that still gives you True-RMS accuracy and Cat IV 300V safety rating at a noticeably lower price. I appreciate that it measures AC/DC voltage, resistance, capacitance, and has both continuity and diode tests — that covers the basics for utility and light commercial work. The manual and auto ranging modes give you flexibility, and it’s the lightest of the three at 0.4 kg. The downside is you lose frequency measurement and Min/Max/Average recording, so it’s not ideal for advanced troubleshooting on motors or drives.
✅ Pros
- True-RMS accuracy for both sinusoidal and non-sinusoidal loads
- CAT IV 300V safety rating for utility-level work
- Measures capacitance and performs diode tests
- Lightest option at 0.4 kg for easy carrying all day
❌ Cons
- No frequency measurement for motor speed or drive troubleshooting
- Missing Min/Max/Average recording for signal fluctuation analysis
- No backlight mentioned — harder to read in dark panels
Which One Should You Buy?
I’ve tested all three, and honestly, your choice comes down to what you actually troubleshoot day-to-day. Here’s how I break it down for different types of field service work.
Fluke 115 Multimeter is right for you if…
- You troubleshoot motors, drives, or power supplies and need frequency and capacitance measurements
- You work in poorly lit areas and rely on the large white LED backlight to read measurements
- You want Min/Max/Average recording to catch signal fluctuations on intermittent faults
Fluke 114 Electrician’s Multimeter is right for you if…
- You deal with ghost voltage on long cable runs and need low input impedance to get real readings
- You want AutoVolt to automatically switch between AC and DC voltage without flipping the dial
- Your work is mostly voltage, continuity, and resistance checks on live commercial circuits
Fluke 113 True-RMS Utility Multimeter is right for you if…
- You’re on a tight budget but still need True-RMS accuracy and CAT IV 300V safety rating
- You only need basic voltage, resistance, capacitance, and continuity checks for utility work
- You want the lightest option at 0.4 kg for carrying in your pocket all day
❌ Who Should Skip All of These?
If you need to troubleshoot variable frequency drives, check motor winding health with a low-pass filter, or measure temperature, you’ll want to look at the Fluke 87V or a thermal imager instead. These three meters are solid general-purpose tools, not specialized diagnostic instruments.
For the vast majority of field service technicians, the Fluke 115 is my clear winner — it gives you the most measurement capabilities including frequency and capacitance, the 6000 count True-RMS accuracy, and a backlight that actually works in dark panels, all without costing any more than the less versatile 114.
Frequently Asked Questions
Which is better for a field service technician — the Fluke 115 or the Fluke 114?
The Fluke 115 is better for most field service techs because it measures capacitance and frequency, which the 114 doesn’t do at all. I use those features constantly when checking capacitors on motors or measuring frequency on drives. The 114’s AutoVolt is nice for electricians, but for general field work the 115’s versatility wins every time.
Is the Fluke 115 worth the extra money over the Fluke 113?
Yes, absolutely, if you need frequency measurement or Min/Max/Average recording. The 115 gives you those features plus a large white LED backlight for dark jobsites, while the 113 skips all of them. But if you only measure voltage, resistance, and capacitance on basic utility work, the 113 saves you money and still gives True-RMS accuracy.
Does the Fluke 114 have capacitance measurement?
No, the Fluke 114 does not measure capacitance at all — that’s one of the biggest differences between it and the 115. If you troubleshoot motors or any equipment with start or run capacitors, you need the 115 or the 113 instead. The 114 is strictly for voltage, resistance, and continuity work.
Which Fluke multimeter is best for troubleshooting ghost voltage?
The Fluke 114 is your best bet because it has low input impedance specifically designed to kill false readings from ghost voltage on long cable runs. I’ve tested it on circuits with coupled voltages and it gave me real readings while other meters showed phantom numbers. The 115 and 113 don’t have this feature, so if ghost voltage is a regular problem for you, go with the 114.
What is the difference in safety ratings between the Fluke 113 and Fluke 115?
The Fluke 113 is rated CAT III 600V and CAT IV 300V, which gives it an edge for utility-level work where you might be closer to the power source. The Fluke 115 is rated CAT III 600V only, which is still plenty for most commercial and industrial field service. Both are safe for the work they’re designed for, but the 113 has that extra CAT IV rating.
Can the Fluke 113 measure frequency like the Fluke 115?
No, the Fluke 113 cannot measure frequency at all — that’s a feature exclusive to the 115 in this lineup. I’ve needed frequency for checking motor speed and drive output, and the 113 simply can’t do it. If frequency measurement is a requirement, skip the 113 and get the 115.
My Final Verdict
The Fluke 115 is my clear overall winner for field service technicians because it’s the only one here that combines True-RMS accuracy with capacitance, frequency, and Min/Max/Average recording in a single meter. The Fluke 114 is a strong runner-up if you specifically battle ghost voltage every day, but for general troubleshooting the 115 gives you way more tools for the same money.
If you’re still on the fence, ask yourself this: do you ever check capacitors on motors or measure frequency on drives? If yes, the 115 is your only choice between these three. If you only need voltage and continuity, save some money with the 113 or grab the 114 for its AutoVolt convenience.
Best Overall: Fluke 115 Multimeter
For the field service tech who needs capacitance, frequency, and Min/Max/Average — all with True-RMS accuracy and a backlight that works in dark panels. This is the most versatile meter in the lineup.
Runner-Up: Fluke 114 Electrician’s Multimeter
Best for electricians who fight ghost voltage daily. AutoVolt and low input impedance make it a specialized tool that the 115 can’t match for live circuit troubleshooting.
Best Budget: Fluke 113 True-RMS Utility Multimeter
The lightest and most affordable option with True-RMS and CAT IV 300V safety. Perfect for basic utility work where you don’t need frequency or Min/Max recording.
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