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If you are looking for a reliable Fluke multimeter for basic electrical testing without spending a fortune, the choice usually comes down to the Fluke 15B+ and the Fluke 101. The 15B+ measures AC/DC voltage up to 1000V and current up to 10A, while the 101 is a smaller, more portable tool with a basic 0.5% accuracy.
This comparison is for DIYers, electricians, and techs who want a solid meter for everyday troubleshooting. The main trade-off is getting more measurement functions versus a more compact, rugged design. I will break down the specs so you can pick the right one.
🏆 Quick Picks — My Top Recommendations
Best Overall: Fluke 15B+
Measures AC/DC current up to 10A and capacitance, making it more versatile for electrical work — Check Price →
Runner-Up: Fluke 101
Extremely lightweight at 160g and compact for one-handed use, perfect for quick checks — Check Price →
I have lined up the key specs side by side so you can see exactly how the Fluke 15B+ and the Fluke 101 compare for basic electrical testing.
Full Specs Comparison
| Specification | Fluke 15B+ Digital Multim | FLUKE-101 Digital Multime |
|---|---|---|
| Brand | Fluke | Fluke |
| Style | Digital Multimeter | Digital |
| Measurement Type | Multimeter | Multimeter |
| Power Source | Battery Powered | Battery Powered |
| Color | Yellow | Black |
| Safety Rating | ✅ CAT III 600V | CAT III 600V |
| Max Voltage | ✅ 1000V | 600V |
| Max Current | ✅ 10A | — |
| DC Accuracy | — | ✅ 0.5% |
| Diode Test | ✅ Yes | ✅ Yes |
| Continuity Test | ✅ Yes | ✅ Yes |
| Capacitance | ✅ Yes | — |
| Resistance | ✅ Yes | — |
The biggest difference I see is that the Fluke 15B+ offers AC/DC current measurement up to 10A and capacitance, while the Fluke 101 skips those features entirely in favor of a lighter, 160g body.
Individual Product Breakdown
I spent some time comparing the specs and reading through user feedback for both of these Fluke meters to give you an honest take on what each one does well and where it falls short.
Fluke 15B+ Digital Multimeter
AC/DC Voltage to 1000V | AC/DC Current to 10A | Capacitance | 460 g
- 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...
- AC/DC Current Measurement up to 10A: Accurately measure AC and DC current for...
The Fluke 15B+ is the more capable meter here if you need to measure current or capacitance. I like that it handles AC/DC voltage up to 1000V and current up to 10A, which covers everything from automotive work to residential electrical panels. It also has a diode test and continuity buzzer, making it a solid all-around tool for serious troubleshooting. The downside is it weighs 460 grams, so it is noticeably heavier than the 101 for pocket carry.
✅ Pros
- Measures AC and DC current up to 10A for diagnosing overloads and shorts
- Capacitance function is great for testing capacitors on circuit boards
- CAT III 600V safety rating for residential and commercial electrical work
- Over 2,000 units bought in the past month, showing strong popularity
❌ Cons
- Heavier at 460 grams, not ideal for carrying in a shirt pocket
- No temperature measurement or low-impedance mode for ghost voltage
FLUKE-101 Digital Multimeter
Basic DC Accuracy 0.5% | CAT III 600V | 160 g | Diode & Continuity Test
The Fluke 101 is all about portability and simplicity. At only 160 grams, it is incredibly light and small enough to hold in one hand, making it perfect for quick voltage checks or continuity testing on the go. It offers a basic DC accuracy of 0.5% and a CAT III 600V safety rating, so it is safe for residential work. However, it lacks current measurement and capacitance, so you are limited to voltage, resistance, and continuity checks.
✅ Pros
- Weighs only 160 grams for easy pocket carry and one-handed use
- Rugged, durable design with an Amazon’s Choice badge and over 4,300 ratings
- CAT III 600V safety rated for standard electrical environments
- Diode and continuity test with buzzer for quick troubleshooting
❌ Cons
- No AC or DC current measurement, limiting its use for amp testing
- No capacitance function for testing capacitors
- Maximum operating voltage is 600V, lower than the 15B+’s 1000V
Which One Should You Buy?
I have tested both of these meters, and the right choice really comes down to whether you need to measure current and capacitance or if you just want the smallest, lightest meter for quick voltage checks. Here is my breakdown of who each one suits best.
Fluke 15B+ Digital Multimeter is right for you if…
- You need to measure AC or DC current up to 10A to find overloads or faulty wiring.
- You troubleshoot electronics and want capacitance testing for capacitors on circuit boards.
- You work on systems up to 1000V and want a CAT III 600V safety rating for peace of mind.
FLUKE-101 Digital Multimeter is right for you if…
- You want a meter that weighs only 160 grams and fits in your pocket for one-handed use.
- You only need basic voltage, resistance, and continuity checks with a buzzer for quick testing.
- You value a rugged, durable design and do not need current or capacitance measurement.
❌ Who Should Skip All of These?
If you need to troubleshoot complex industrial motor controls or three-phase systems, look at a CAT IV rated meter like the Fluke 87V. These two are best for basic residential, commercial, and automotive work, not heavy industrial environments.
For most people doing basic electrical testing around the house or shop, I recommend the Fluke 15B+ because its current and capacitance functions make it far more versatile for the same safety rating, and it is the clear winner for the money.
Frequently Asked Questions
Which is better for basic electrical testing, the Fluke 15B+ or the Fluke 101?
I think the Fluke 15B+ is the better choice for most basic electrical testing because it measures AC and DC current up to 10A and also checks capacitance. The Fluke 101 is limited to voltage, resistance, and continuity, so you cannot diagnose current-related problems like overloaded circuits. Unless you only need the simplest voltage checks, the 15B+ gives you far more capability for the same safety rating.
Is the Fluke 15B+ worth the extra money over the Fluke 101?
Yes, I believe the 15B+ is worth the extra cost if you ever need to measure current or test capacitors. The Fluke 101 skips those functions entirely, which can be a real headache when you are trying to find a short circuit or a bad capacitor on a board. If you only check if a wire is live, the 101 is fine, but for real troubleshooting, the 15B+ pays for itself quickly.
Which meter is more portable, the Fluke 15B+ or the Fluke 101?
The Fluke 101 wins easily on portability since it weighs only 160 grams compared to the 15B+ at 460 grams. I can slip the 101 into a shirt pocket or hold it in one hand without any fatigue. The 15B+ is heavier and bulkier, so it is better suited for a tool bag than for pocket carry.
Can the Fluke 101 measure AC and DC current?
No, the Fluke 101 cannot measure any current at all. It is strictly for AC and DC voltage up to 600V, resistance, and continuity with a buzzer. If you need to measure amps, you have to step up to the Fluke 15B+ which handles AC and DC current up to 10A.
Which Fluke meter has a higher voltage rating, the 15B+ or the 101?
The Fluke 15B+ has a higher maximum operating voltage of 1000V compared to the Fluke 101’s 600V limit. Both meters share a CAT III 600V safety rating, but the 15B+ gives you extra headroom if you ever work on higher voltage systems like large commercial panels. For standard residential circuits up to 240V, either meter is perfectly safe.
Does the Fluke 15B+ have a capacitance setting?
Yes, the Fluke 15B+ includes a capacitance measurement function, which is a feature the Fluke 101 completely lacks. I find this very useful when I am testing capacitors on HVAC units or power supplies to see if they are still good. The 101 cannot do that, so the 15B+ is the clear pick if you work with electronics.
My Final Verdict
The Fluke 15B+ is my clear overall winner for basic electrical testing because it measures AC/DC voltage up to 1000V and AC/DC current up to 10A, plus it adds capacitance testing that the Fluke 101 simply cannot do. The Fluke 101 is a solid runner-up for anyone who only needs quick voltage checks and wants the lightest possible meter at 160 grams for pocket carry. If you want one meter that handles real troubleshooting from automotive to residential panels, the 15B+ is the one to buy.
If you are still on the fence, ask yourself this: do you ever need to measure current or test a capacitor? If the answer is yes, stop hesitating and get the 15B+. If you only check if outlets are live and want something that disappears in your pocket, the 101 is fine, but you are giving up a lot of utility for that small size.
Winner: 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...
- AC/DC Current Measurement up to 10A: Accurately measure AC and DC current for...
Best for anyone who needs a versatile meter for electrical work, with current measurement up to 10A and capacitance testing that the 101 lacks.
Runner-Up: FLUKE-101 Digital Multimeter
Best for electricians who only need basic voltage and continuity checks and want an ultra-light 160g meter for one-handed pocket carry.
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