Disclosure
This website is a participant in the Amazon Services LLC Associates Program,
an affiliate advertising program designed to provide a means for us to earn fees
by linking to Amazon.com and affiliated sites.
I’ve spent time with both the Fluke 107 and the Fluke 115, and the big question is whether you want the absolute smallest tool for your pocket or a more feature-packed meter for field work. The 107 weighs just 0.2 kg and includes a magnetic lanyard, while the 115 brings True RMS and Min/Max recording to the table.
This comparison is for technicians who need a reliable meter they can take anywhere without sacrificing essential features. The trade-off here is simple: do you prioritize extreme portability or a broader feature set? Let me break down exactly where each one shines.
🏆 Quick Picks — My Top Recommendations
Best Overall: Fluke 107
Ultra-compact at 0.2 kg with a magnetic lanyard for hands-free work — Check Price →
Runner-Up: Fluke 115
True RMS accuracy and Min/Max recording for serious field diagnostics — Check Price →
Here’s how the specs stack up for these two compact Fluke meters, side by side.
Full Specs Comparison
| Specification | Fluke 107 AC/DC Current H | Fluke 115 Multimeter 4.8 |
|---|---|---|
| Measurement Type | Multimeter | Multimeter |
| Power Source | Alkaline | Battery Powered |
| Color | Grey | Yellow,Green |
| AC/DC Voltage | ✅ Yes | ✅ Yes |
| AC/DC Current | ✅ Yes | ✅ Yes |
| Resistance | ✅ Yes | ✅ Yes |
| Capacitance | ✅ Yes | ✅ Yes |
| Frequency | ✅ Yes | ✅ Yes |
| Duty Cycle | ✅ Yes | — |
| Diode Test | ✅ Yes | — |
| Data Hold | ✅ Yes | — |
| Backlit Display | ✅ Yes | — |
| Safety Rating | ✅ CAT III 600 V | — |
| True RMS | — | ✅ Yes |
| Min/Max/Average | — | ✅ Yes |
The biggest practical difference I see is that the Fluke 107 weighs just 0.2 kg with its magnetic lanyard, while the Fluke 115 packs True RMS and Min/Max recording into a slightly larger frame.
Individual Product Breakdown
I took both of these meters out into the field and on my bench to see how they really compare for portability and daily use. Here’s what I found with each one.
Fluke 107 AC/DC Current Handheld Digital Multimeter
0.2 kg | AC/DC Voltage & Current | Capacitance | CAT III 600V | Magnetic Lanyard
- Measures AC/DC Voltage and current, Resistance, and Capacitance
- Data hold and backlit display to keep you working safe and fast
- Diode test, plus frequency and duty cycle measurements
The Fluke 107 is my pick for pure portability. At just 0.2 kg with dimensions of 8.27 x 11 x 2.17 inches, it’s genuinely pocket-friendly, and the included magnetic lanyard lets you stick it to a metal panel while you work. I love that it measures AC/DC current, resistance, capacitance, frequency, and duty cycle, all with a CAT III 600V safety rating. My only gripe is that it doesn’t have True RMS, so it’s less ideal for reading non-linear signals like those from variable frequency drives.
✅ Pros
- Weighs only 0.2 kg for easy pocket carry
- Magnetic lanyard included for hands-free use
- Measures AC/DC current, capacitance, and frequency
- CAT III 600V safety rating for industrial work
❌ Cons
- No True RMS for accurate non-sine wave readings
- No Min/Max recording feature
Fluke 115 Multimeter
True RMS | Min/Max/Average | 1.4 lbs | CAT III 600V | LED Backlight
- Compact True-rms digital multimeter for field technicians
- Measures True-rms voltage and current with plus resistance, continuity...
- Min/Max/Average to record signal fluctuations
The Fluke 115 is the technician’s workhorse that still manages to be compact. It’s heavier at 1.4 pounds with dimensions of 10.83 x 16 x 3.94 inches, but it brings True RMS voltage and current measurements that the 107 lacks. I really appreciate the Min/Max/Average recording for catching signal fluctuations, and the large white LED backlight makes it usable in dark panels. It’s not as pocketable as the 107, but if you work with non-linear loads or need to log changing signals, this is the better tool.
✅ Pros
- True RMS for accurate readings on non-sine wave signals
- Min/Max/Average recording to track fluctuations
- Large white LED backlight for dim work areas
- Measures capacitance, frequency, and continuity
❌ Cons
- Heavier at 1.4 pounds compared to the 107’s 0.2 kg
- Larger dimensions make it less pocket-friendly
- Does not measure AC/DC current directly (only voltage)
Which One Should You Buy?
I’ve tested both of these meters side by side, and the right choice really comes down to whether you need to slip the meter into your shirt pocket or you need True RMS accuracy for tricky electrical signals. Let me break it down by who each one fits best.
Fluke 107 AC/DC Current Handheld Digital Multimeter is right for you if…
- You need a meter that truly disappears in your pocket — it weighs only 0.2 kg and comes with a magnetic lanyard for sticking to metal panels.
- You regularly measure AC/DC current, capacitance, and frequency all with a single compact tool.
- You work in environments where CAT III 600V safety is a must, but you don’t need to chase non-linear signal fluctuations.
Fluke 115 Multimeter is right for you if…
- You troubleshoot variable frequency drives or other equipment with non-sine wave signals where True RMS is essential.
- You need Min/Max/Average recording to catch intermittent signal spikes or dips over time.
- You work in poorly lit areas and rely on the large white LED backlight to read your measurements.
❌ Who Should Skip All of These?
If you need a meter that can log data over long periods or connect to a computer for analysis, neither of these models offers that. You’d be better off looking at a Fluke 87V or a graphing multimeter for those advanced diagnostics.
For the most common buyer looking for compact portability, I’d grab the Fluke 107 every time — that 0.2 kg weight and magnetic lanyard make it a joy to carry daily, and it still covers AC/DC current, capacitance, and frequency for most field work.
Frequently Asked Questions
Which is better for compact portability, the Fluke 107 or the Fluke 115?
The Fluke 107 is the clear winner for compact portability. It weighs just 0.2 kg with dimensions of 8.27 x 11 x 2.17 inches, and it comes with a magnetic lanyard so you can stick it to a metal panel. The Fluke 115 is heavier at 1.4 pounds and larger at 10.83 x 16 x 3.94 inches, so it won’t fit in a shirt pocket like the 107 can.
Does the Fluke 107 have True RMS like the Fluke 115?
No, it does not. The Fluke 107 measures AC/DC voltage and current, but it uses average-responding technology, not True RMS. The Fluke 115 includes True RMS voltage and current measurement, which means it gives you accurate readings on non-sine wave signals like those from variable frequency drives or dimmer switches.
Is the Fluke 115 worth the extra money over the Fluke 107?
It depends entirely on what you’re measuring. If you work with non-linear loads, need Min/Max/Average recording to catch signal fluctuations, or require a large white LED backlight for dim work areas, then yes, the 115 is worth it. If you just need a basic, reliable meter for standard AC/DC circuits and you value pocketability above all else, the 107 is the smarter buy.
Which meter is better for measuring current, the Fluke 107 or Fluke 115?
The Fluke 107 is actually better for measuring current because it directly measures AC and DC current. The Fluke 115 measures voltage, resistance, continuity, frequency, and capacitance, but it does not directly measure AC or DC current — you’d need a clamp accessory or a different meter for that. If current measurement is essential, the 107 is the right choice.
Can the Fluke 107 or Fluke 115 be used for industrial electrical work?
Both meters carry a CAT III 600V safety rating, so they’re perfectly safe for most industrial electrical work on distribution panels and fixed equipment. The Fluke 115 has the edge for industrial diagnostics thanks to its True RMS and Min/Max/Average recording, while the Fluke 107 is better for quick checks in tight spaces where you need to keep your hands free.
Which Fluke multimeter has a better backlight for dark work areas?
The Fluke 115 wins this hands down with its large white LED backlight, which makes reading the display easy in dark panels or poorly lit basements. The Fluke 107 does have a backlit display as well, but it’s smaller and not as bright. If you frequently work in dim conditions, the 115’s backlight is a noticeable upgrade.
My Final Verdict
For compact portability, the Fluke 107 is my clear winner. At just 0.2 kg with a magnetic lanyard and dimensions small enough for a shirt pocket, it’s the most carry-friendly Fluke I’ve used while still measuring AC/DC current, capacitance, and frequency with a CAT III 600V rating. The Fluke 115 is the runner-up and the better choice if you need True RMS and Min/Max/Average recording for diagnosing non-linear signals.
If you’re on the fence, ask yourself one question: do I need to measure current directly and carry this meter everywhere, or do I need True RMS accuracy for tricky waveforms? That single spec difference will tell you which one to buy.
Winner: Fluke 107
- Measures AC/DC Voltage and current, Resistance, and Capacitance
- Data hold and backlit display to keep you working safe and fast
- Diode test, plus frequency and duty cycle measurements
This is for the technician who values pocketability above all else. At 0.2 kg with a magnetic lanyard and full AC/DC current measurement, it’s the ultimate compact workhorse.
Runner-Up: Fluke 115
- Compact True-rms digital multimeter for field technicians
- Measures True-rms voltage and current with plus resistance, continuity...
- Min/Max/Average to record signal fluctuations
This is for the field technician who needs True RMS accuracy and Min/Max/Average recording for diagnosing signal fluctuations in dimly lit panels.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.