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If you’re shopping for a reliable multimeter without breaking the bank, you’ve probably landed on the Fluke 17B+, Fluke 15B+, or the Fluke 107. All three can measure AC/DC voltage up to 1000V (or 600V for the 107) and current up to 10A, but they differ in extra features like temperature and capacitance testing.
This comparison is for anyone doing residential or light commercial electrical work who wants Fluke quality at a reasonable price. The key trade-off is whether you need temperature measurement and frequency testing, or if you can save a bit by skipping those extras. I’ll help you pick the right one for your toolbox.
🏆 Quick Picks — My Top Recommendations
Best Overall: Fluke 17B+
Only model with temperature testing up to 400°C and frequency measurement — Check Price →
Runner-Up: Fluke 15B+
Same voltage and current specs as the 17B+ but no temperature or frequency — Check Price →
Best Budget: Fluke 107
Lightest at 0.2 kg with 600V max, but still offers diode and frequency tests — Check Price →
I’ve put together a side-by-side specs table so you can see exactly how the Fluke 17B+, Fluke 15B+, and Fluke 107 stack up against each other on the features that matter most for budget electrical work.
Full Specs Comparison
| Specification | Fluke 17B+ Digital Multim | Fluke 15B+ Digital Multim | Fluke 107 AC/DC Current H |
|---|---|---|---|
| AC/DC Voltage | ✅ 1000V | 1000V | — |
| Current Measurement | ✅ 10A | 10A | — |
| Resistance | ✅ Yes | ✅ Yes | ✅ Yes |
| Continuity | ✅ Yes | ✅ Yes | — |
| Diode Test | ✅ Yes | ✅ Yes | ✅ Yes |
| Capacitance | ✅ Yes | ✅ Yes | ✅ Yes |
| Frequency | ✅ Yes | — | ✅ Yes |
| Temperature | ✅ Yes | — | — |
| Duty Cycle | — | — | ✅ Yes |
| Safety Rating | ✅ CAT III 600V | CAT III 600V | CAT III 600V |
| Weight | ✅ 470 g | 460 g | — |
| Power Source | Battery | Battery | Alkaline |
| Color | Yellow | Yellow | Grey |
| Display Backlight | — | — | ✅ Yes |
| Data Hold | — | — | ✅ Yes |
The biggest difference I see is that the Fluke 17B+ includes temperature testing up to 400°C and frequency measurement, while the Fluke 15B+ and Fluke 107 skip those functions — a key spec trade-off depending on what you need to measure.
Individual Product Breakdown
I spent time comparing the specs, customer reviews, and real-world usefulness of each of these three Fluke multimeters. Here’s what I found after digging into what each one actually delivers for budget electrical work.
Fluke 17B+ Digital Multimeter
AC/DC Voltage 1000V | Current to 10A | Temperature up to 400°C | Frequency & Capacitance
- CAT III 600V Safety Rating: Ensuring your safety when working on electrical...
- AC/DC Voltage and Current Measurements up to 1000V and 10A: Allowing you to...
- Resistance, Continuity, Capacitance: Essential measurement functions for...
The Fluke 17B+ is the most feature-packed of the three, and that’s why I’d pick it for anyone doing serious electrical troubleshooting. It measures AC/DC voltage up to 1000V and current up to 10A, plus it adds frequency and temperature testing up to 400°C with the included K-type thermocouple. The CAT III 600V safety rating gives me confidence when working on residential and commercial panels. My only gripe is that it weighs 470 grams, which is a bit heavier than the 107 if you’re carrying it around all day.
✅ Pros
- Only model with temperature measurement up to 400°C
- Includes frequency testing for motor and drive work
- Rated 4.8 stars from 796 reviews — highly trusted
- Overall Pick on Amazon with 1K+ bought in past month
❌ Cons
- Heaviest of the three at 470 grams
- No backlit display mentioned in specs for low-light work
Fluke 15B+ Digital Multimeter
AC/DC Voltage 1000V | Current to 10A | Capacitance | Continuity & Diode Test
- CAT III 600V Safety Rating: Ensuring your safety when working on electrical...
- AC/DC Voltage Measurement up to 1000V: Quickly and accurately measure both...
- AC/DC Current Measurement up to 10A: Accurately measure AC and DC current...
The Fluke 15B+ is basically the 17B+ with a couple of features cut to save some cash. It still measures AC/DC voltage up to 1000V and current up to 10A, plus it handles resistance, continuity, diode, and capacitance — all the essentials for basic electrical troubleshooting. I like that it weighs just 460 grams, slightly lighter than the 17B+, and carries the same CAT III 600V safety rating. The downside is you lose temperature and frequency measurement, so it’s not for HVAC or motor work.
✅ Pros
- Same 1000V and 10A ratings as the 17B+ for less
- Rated 4.8 stars from 832 reviews — excellent feedback
- 1K+ bought in past month, proves its popularity
- Includes capacitance testing for capacitor checks
❌ Cons
- No temperature measurement — skip this for HVAC work
- No frequency or duty cycle measurement like the 107
Fluke 107 AC/DC Current Handheld Digital Multimeter
AC/DC Voltage 600V | Current to 10A | Frequency & Duty Cycle | Data Hold & Backlit Display
- 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 surprised me — it’s the smallest and lightest at just 0.2 kg, making it perfect for throwing in a tool pouch. It measures AC/DC voltage up to 600V and current up to 10A, and it’s the only one of the three that includes a backlit display and data hold for working in dim areas. It also has frequency and duty cycle measurements, which the 15B+ lacks. The trade-off is the lower 600V max voltage and no temperature or capacitance testing.
✅ Pros
- Lightest at 0.2 kg — great for carrying all day
- Backlit display and data hold for low-light safety
- Includes frequency and duty cycle measurements
- Rated 4.8 from 2,485 reviews — most popular of the three
❌ Cons
- Max voltage is 600V, not 1000V like the other two
- No capacitance testing for capacitor troubleshooting
- No temperature measurement — not for HVAC work
Which One Should You Buy?
I know picking between three similar Fluke meters can feel overwhelming, but the right choice really comes down to what you actually need to measure on the job. Here’s how I’d match each one to a specific type of buyer.
Fluke 17B+ Digital Multimeter is right for you if…
- You need temperature measurement up to 400°C for testing HVAC systems or heating elements
- You work with variable frequency drives or motors and need frequency testing
- You want the most complete set of features in a single meter for residential and commercial electrical work
Fluke 15B+ Digital Multimeter is right for you if…
- You mostly need voltage up to 1000V and current up to 10A for basic circuit troubleshooting
- You check capacitors regularly and need capacitance testing without paying for temperature features
- You want a trusted Fluke meter for general electrical work and don’t need HVAC or frequency functions
Fluke 107 AC/DC Current Handheld Digital Multimeter is right for you if…
- You need a lightweight meter at just 0.2 kg that fits easily in a tool pouch or pocket
- You work in dimly lit areas and need the backlit display and data hold features
- You want frequency and duty cycle measurements but don’t need 1000V or temperature testing
❌ Who Should Skip All of These?
If you’re doing heavy industrial work that requires a true RMS meter or need CAT IV safety ratings for high-energy environments, none of these budget Fluke models will cut it. You’d be better off looking at the Fluke 87V or a higher-end model designed for that level of risk.
For the most common buyer — a homeowner, electrician’s apprentice, or light commercial tech — I’d recommend the Fluke 17B+ if you need temperature and frequency, or the Fluke 15B+ if you want to save a bit and stick to the basics. Either way, you’re getting a solid Fluke meter that will last.
Frequently Asked Questions
Which is better for HVAC work — the Fluke 17B+ or the Fluke 15B+?
The Fluke 17B+ is the clear winner for HVAC because it’s the only one of the three with temperature measurement up to 400°C and it includes a K-type thermocouple in the box. The 15B+ doesn’t have temperature testing at all, so you’d be stuck guessing on heating and cooling systems. If you service furnaces, AC units, or refrigeration, don’t bother with the 15B+ — go straight for the 17B+.
Is the Fluke 107 worth buying over the Fluke 15B+?
It depends on what you value more. The Fluke 107 has a backlit display, data hold, and frequency and duty cycle measurements that the 15B+ lacks — great for working in dark spots or checking motor speeds. But the 15B+ goes up to 1000V while the 107 maxes out at 600V, and the 15B+ has capacitance testing for checking capacitors. For general electrical work around the house, I’d take the 15B+ for the higher voltage rating.
Does the Fluke 17B+ measure capacitance and frequency?
Yes, it does both. The Fluke 17B+ measures capacitance for testing capacitors and frequency for checking motor drives and signal circuits. That puts it ahead of the 15B+ which only does capacitance, and the 107 which only does frequency. If you need both functions in one meter, the 17B+ is your only choice here.
Which Fluke multimeter is best for a beginner electrician on a budget?
I’d point a beginner toward the Fluke 15B+ because it covers all the basics — AC/DC voltage up to 1000V, current up to 10A, resistance, continuity, diode, and capacitance — without paying extra for temperature or frequency you might not use yet. It’s a solid step up from cheap no-name meters and has the same CAT III 600V safety rating as the 17B+. You can always upgrade to the 17B+ later if your work expands into HVAC or motor troubleshooting.
What’s the weight difference between the Fluke 17B+, 15B+, and 107?
The Fluke 107 is the lightest by far at just 0.2 kg (about 0.44 pounds), making it easy to carry in a pocket all day. The Fluke 17B+ weighs 470 grams and the 15B+ weighs 460 grams — basically identical to each other but more than double the 107. If you’re climbing ladders or moving between job sites constantly, the 107 wins on portability.
Which model has the best customer reviews — the 17B+, 15B+, or 107?
The Fluke 107 has the most reviews by a long shot with 2,485 ratings and a 4.8-star average, making it the most popular of the three. The Fluke 15B+ has 832 reviews at 4.8 stars, and the Fluke 17B+ has 796 reviews also at 4.8 stars. All three are extremely well-liked, but the 107’s massive review count tells me it’s the go-to for a lot of buyers who just need a reliable, portable meter.
My Final Verdict
The Fluke 17B+ is my clear winner for budget electrical work because it’s the only one of the three that includes temperature measurement up to 400°C, frequency testing, and capacitance — all in one meter with a CAT III 600V safety rating. The 15B+ is the runner-up for anyone who just needs voltage up to 1000V and current to 10A without the extra features. If portability is your priority, the Fluke 107 at just 0.2 kg with a backlit display is a solid alternative.
If you’re still on the fence, ask yourself whether you’ll ever need to check a furnace, motor drive, or capacitor — if yes, spend the extra on the 17B+. If not, save a bit with the 15B+ or grab the 107 for its lighter weight and backlit screen.
WINNER: Fluke 17B+ Digital Multimeter
- CAT III 600V Safety Rating: Ensuring your safety when working on electrical...
- AC/DC Voltage and Current Measurements up to 1000V and 10A: Allowing you to...
- Resistance, Continuity, Capacitance: Essential measurement functions for...
This is for the electrician or DIYer who wants the most versatile meter without stepping up to a pro-level price. Temperature up to 400°C, frequency, and capacitance make it a true all-rounder.
RUNNER-UP: Fluke 15B+ Digital Multimeter
- CAT III 600V Safety Rating: Ensuring your safety when working on electrical...
- AC/DC Voltage Measurement up to 1000V: Quickly and accurately measure both...
- AC/DC Current Measurement up to 10A: Accurately measure AC and DC current...
Best for basic electrical troubleshooting where you need 1000V and 10A but don’t need temperature or frequency. A reliable workhorse at a lower cost.
BEST BUDGET: Fluke 107 AC/DC Current Handheld Digital Multimeter
- 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
Ideal for anyone who needs a lightweight meter at 0.2 kg with a backlit display and frequency testing. Just know you’re limited to 600V and no capacitance or temperature.
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