Fluke multimeters are known for their precision, ruggedness, and professional-grade performance. Two of their most popular models – the Fluke 115 and Fluke 179, are often compared because they occupy similar spots in the lineup, appealing to both electricians and advanced DIY users.
At first glance, they look alike, but the 179 is a higher-end model with features that cater to more demanding applications. Let’s compare them side by side.
🔍 Overview of the Fluke 115
The Fluke 115 is a compact, True RMS multimeter designed for field technicians and general-purpose electrical troubleshooting. It’s portable, easy to use, and precise enough for most residential, automotive, and light industrial tasks.
Key Features:
- True RMS for accurate readings on non-linear loads
- Measures AC/DC voltage, current (up to 10A), resistance, capacitance, frequency, and continuity
- LoZ (Low Input Impedance) helps eliminate ghost voltages
- Large white LED backlight for dim environments
- CAT III 600V safety rating
Best For: Electricians, technicians, and general-purpose users who want a reliable, easy-to-carry multimeter for day-to-day diagnostics.
⚙️ Overview of the Fluke 179
The Fluke 179 is a full-featured, True RMS digital multimeter designed for professional electricians and engineers who need advanced accuracy and temperature measurement.
Key Features:
- True RMS accuracy on all loads
- Measures voltage, current, resistance, capacitance, frequency, and temperature
- Min/Max/Average recording for monitoring variations
- Backlit digital display with analog bar graph
- CAT III 1000V / CAT IV 600V safety rating
- Lifetime warranty (vs. limited warranty on lower models)
Best For: Professional electricians, maintenance engineers, and industrial users who require temperature measurement and higher voltage safety ratings.
📊 Side-by-Side Comparison
| Feature | Fluke 115 | Fluke 179 |
|---|---|---|
| True RMS | ✅ Yes | ✅ Yes |
| Voltage Range | Up to 600V | Up to 1000V |
| Current Range | Up to 10A | Up to 10A |
| Temperature Measurement | ❌ No | ✅ Yes (with thermocouple) |
| Display | Backlit LCD | Backlit LCD with analog bar graph |
| Recording (Min/Max/Average) | ✅ Yes | ✅ Yes |
| LoZ Function | ✅ Yes | ❌ No |
| Safety Rating | CAT III 600V | CAT III 1000V / CAT IV 600V |
| Warranty | 3 years | Lifetime |
| Typical Use | General purpose | Professional / Industrial |
✅ Pros and Cons
Fluke 115 Pros
- Compact and lightweight – perfect for field use
- True RMS ensures accurate readings
- LoZ function prevents false voltage readings
- More affordable than the 179
Fluke 115 Cons
- No temperature measurement
- Lower voltage safety rating
- Slightly smaller display than the 179
Fluke 179 Pros
- Measures temperature with included thermocouple
- Higher safety rating for industrial work
- Backlit display with analog bar graph for better trend visibility
- Lifetime warranty and superior build quality
Fluke 179 Cons
- More expensive than the 115
- Slightly larger and heavier
- Overkill for basic residential or automotive use
🏆 Verdict: Fluke 115 or Fluke 179?
Both models deliver the accuracy, reliability, and build quality that make Fluke meters industry favorites — but they serve slightly different audiences.
- Choose the Fluke 115 if you’re a field technician, general electrician, or hobbyist who values portability and simplicity without sacrificing accuracy.
- Choose the Fluke 179 if you’re a professional electrician or engineer who needs temperature measurement, higher safety ratings, and lifetime durability.
👉 In short:
- Fluke 115 = Compact, reliable, and affordable for everyday use.
- Fluke 179 = Professional-grade precision and durability for industrial environments.