- Designed for electrical troubleshooting work
- True-RMS AC voltage and current measurement
- Built-in thermometer measures -40°C to 400°C
- Records minimum, maximum and average values
Fluke 179 Digital Multimeter
The Fluke 179 Digital Multimeter is a full-featured true-RMS digital multimeter designed for troubleshooting and repairing electrical and electronic systems. It measures AC and DC voltage and current alongside resistance, capacitance, frequency, continuity and diode functions, making it suitable for industrial troubleshooting, installation and maintenance work. A built-in thermometer adds temperature measurement from -40°C to 400°C without requiring a separate temperature instrument.
Manual and automatic ranging allow the measurement range to be selected automatically or controlled by the user, while Display Hold and AutoHOLD support viewing stable measurements. MIN MAX AVG recording captures minimum and maximum input values and calculates a running average, helping users monitor changing signals. A 6000-count display with analogue bar graph, backlight, CAT III 1000 V and CAT IV 600 V safety ratings supports electrical, electro-mechanical, heating and ventilation troubleshooting.
Key Benefits
- True-RMS AC voltage and current measurement supports accurate readings on complex AC signals
- Built-in temperature measurement removes the need to carry a separate thermometer for supported temperature checks
- Manual and automatic ranging provide a choice between automatic range selection and direct user control
- Display Hold retains the current reading on screen for viewing
- AutoHOLD retains a stable reading until a new stable input is detected
- MIN MAX AVG recording captures minimum and maximum values and calculates a running average
- Backlit display supports reading measurements when working in dim lighting
- Analogue bar graph helps show changes and trends in varying signals
- Test lead alert prompts the user when the rotary switch is moved to or from a current measurement position
- Closed-case calibration can be carried out through the front panel
Common Applications
Fluke 179 Digital Multimeter is suitable for a range of electrical and electronic testing tasks, including:
- Industrial electrical troubleshooting
- Electrical system installation
- Electrical system maintenance
- Electronic system troubleshooting
- Electronic system repair
- Electro-mechanical troubleshooting
- Heating and ventilation troubleshooting
- Temperature measurement
Why Choose This Model?
The Fluke 179 adds built-in temperature measurement from -40°C to 400°C, a function not provided on the Fluke 175 or Fluke 177. It also provides the 0.09% best DC voltage accuracy and backlit display found on the Fluke 177, while the Fluke 175 has 0.15% best DC voltage accuracy and no backlight.
Product Comparison
| Feature | Fluke 179 | Fluke 175 | Fluke 177 |
|---|---|---|---|
| True-RMS AC measurements | ✓ | ✓ | ✓ |
| Maximum AC/DC voltage | 1000 V | 1000 V | 1000 V |
| Maximum AC/DC current | 10 A | 10 A | 10 A |
| Best DC voltage accuracy | ±(0.09% + 2) | ±(0.15% + 2) | ±(0.09% + 2) |
| Display backlight | ✓ | — | ✓ |
| Temperature measurement | -40°C to 400°C | — | — |
| Safety category | CAT III 1000 V, CAT IV 600 V | CAT III 1000 V, CAT IV 600 V | CAT III 1000 V, CAT IV 600 V |
General Specifications
| Specification | Details |
|---|---|
| Product type | Battery-powered true-RMS digital multimeter |
| Display | 6000-count, 3 3/4-digit display with analogue bar graph |
| Backlight | Backlit display; automatically turns off after 2 minutes |
| Ranging | Manual range and Autorange modes |
| Display Hold | Holds the current reading on the display |
| AutoHOLD | Holds the reading until a new stable input is detected |
| MIN MAX AVG | Captures minimum and maximum input values and calculates a running average |
| Continuity indication | Beeper turns on at <25 Ω and turns off at >250 Ω |
| Unsafe voltage indication | Unsafe voltage symbol appears when voltage ≥30 V or a voltage overload is detected |
| Test lead alert | LEAd is displayed when the rotary switch is moved to or from the mA or A position |
| Sleep mode | Activates after 20 minutes without a function change or button press |
| Calibration access | Closed-case calibration through the front panel |
| Safety category | EN 61010-1 to 1000 V CAT III; EN 61010-1 to 600 V CAT IV |
| Agency approvals | UL, CSA, TÜV listed |
| Power supply | 9 V battery |
Measurement and Accuracy Specifications
| Measurement Function | Range and Resolution | Accuracy |
|---|---|---|
| DC voltage | Maximum: 1000 V Maximum resolution: 0.1 mV |
±(0.09% + 2) |
| AC voltage | Maximum: 1000 V Maximum resolution: 0.1 mV |
±(1.0% + 3) |
| DC current | Maximum: 10 A Maximum resolution: 0.01 mA |
±(1.0% + 3) |
| AC current | Maximum: 10 A Maximum resolution: 0.01 mA |
±(1.5% + 3) |
| Resistance | Maximum: 50 MΩ Maximum resolution: 0.1 Ω |
±(0.9% + 1) |
| Capacitance | Maximum: 10,000 µF Maximum resolution: 1 nF |
±(1.2% + 2) |
| Frequency | Maximum: 100 kHz Maximum resolution: 0.01 Hz |
±(0.1% + 1) |
| Temperature | -40°C to 400°C Maximum resolution: 0.1°C |
±(1.0% + 10) |
Mechanical and General Information
| Specification | Details |
|---|---|
| Operating temperature | -10°C to +50°C |
| Storage temperature | -30°C to +60°C |
| Humidity without condensation | 0% to 90% at 0°C to 35°C 0% to 70% at 35°C to 50°C |
| Size | 43 x 90 x 185 mm |
| Weight | 420 g |
| Battery life | Alkaline ~200 hours typical, without backlight |
Specification Notes
- Published summary accuracies are the best accuracies for each measurement function
- AC voltage and current measurements are AC-coupled, true-RMS, up to 1 kHz
What’s Included
- Fluke 179 Digital Multimeter
- 80BK Temperature Probe
- Installed 9 V battery
- Test leads
- Quick Reference Guide
Meta Description
Fluke 179 Digital Multimeter provides true-RMS electrical measurements, temperature testing and CAT III 1000 V, CAT IV 600 V safety.
Official Documents
- Fluke 179 Official Product Page
- Fluke 175, 177, 179 Users Manual
- Fluke 170 Series True-RMS Digital Multimeters Technical Data
What’s Included
- Fluke 179 Digital Multimeter
- 80BK Temperature Probe
- Installed 9 V battery
- Test leads
- Quick Reference Guide
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