best fluke multimeter for HVAC

4 Top Fluke Multimeters for HVAC Professionals [2023 PICKS]

Fixing air conditioners and heaters can be tricky! Sometimes the problem seems impossible to find. But guess what? Having the right tools can make all the difference.

Many HVAC techs, like myself, rely on Fluke multimeters. They’re dependable, get the job done right, and can handle tough conditions (because let’s face it, HVAC work can get messy!). But with all the different Fluke models, choosing the best one for HVAC tasks can be confusing.

I’ve tried out a bunch of HVAC multimeters and I can confidently recommend the Fluke 116 is best for HVAC. But here, we’ll explore more Fluke meter options, compare their features, and help you find the perfect one for your toolbox. Let’s get move.

Top Fluke Multimeter Options for HVAC

Okay, now let’s dig in and talk about the best Fluke multimeters for HVAC that I really like.

#1 Fluke 116/323 HVAC Combo Kit

#2 Fluke 117/323 HVAC Combo Kit

#3 Fluke 87 V Digital Multimeter

#4 Fluke 179 True-RMS Digital Multimeter

Key Features for HVAC Multimeters

Not all multimeters are created equal, and when it comes to HVAC work, you need a tool that can handle the specific challenges of keeping your customers comfortable. Here’s a breakdown of the key features to look for in an HVAC multimeter:

Temperature Measurement: Imagine this: a furnace that won’t heat. A good HVAC multimeter will have a built-in thermometer or a compatible probe to help you pinpoint exactly where things are getting hot (or cold!).

Microamp Measurement: Those tiny flame sensors in gas furnaces and boilers? They need a special kind of measurement. An HVAC multimeter with microamp capabilities lets you check these delicate components without a sweat.

AC/DC Voltage and Current Measurement: Just like any electrical system, your HVAC equipment needs its fair share of juice. A good multimeter can measure both AC (Alternating Current) and DC (Direct Current) voltage and current, so you can make sure everything is getting the power it needs.

Resistance, Continuity, and Capacitance Measurement: Think of these like detective work for your electrical circuits. Resistance tells you how much a wire resists electricity, continuity checks for complete circuits, and capacitance measures how well a component stores electrical energy. Having these features in your multimeter helps you diagnose problems in wires, motors, and other electrical parts of your HVAC system.

Durability and Portability: Let’s face it, HVAC work can take you from attics to crawlspaces. Your multimeter needs to be tough enough to handle bumps and drops, and light enough to carry around all day. Look for a meter with a good build quality and a compact design.

Detailed Review of Each Fluke HVAC Multimeter

Now that you know the key features, we’ll dive into detailed reviews of each Fluke multimeter for HVAC, starting with the best overall choice:

1. Fluke 116/323 HVAC Combo Kit


Fluke 116/323 HVAC Combo Kit

  • Built-in thermometer for HVAC
  • Microamps to test flame sensors
  • Large white LED backlight
  • Resistance measurement up to 40 kΩ
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This champion is a favorite among many HVAC technicians. It’s compact, easy to use, and boasts all the essential features you need. The built-in thermometer eliminates the need for extra tools, and the low input impedance prevents false readings. Plus, the microamp function lets you diagnose issues with gas furnaces and similar systems with confidence.


  • Built-in thermometer for temperature measurement (-40°C to 400°C / -40°F to 752°F)
  • Microamps to test flame sensors
  • Low input impedance to prevent false readings
  • Large white LED backlight for poorly lit areas
  • Measures resistance, continuity, frequency, and capacitance
  • Min/Max/Average to record signal fluctuations
  • ToolPak™ magnetic hanger for hands-free operation (optional)
  • CAT III 600 V safety rated
  • Suitable for HVAC technicians and building maintenance

2. Fluke 117/323 HVAC Combo Kit


Fluke 117/323 HVAC

  • AutoVolt automatic ac/dc
  • LoZ: Helps prevent false readings
  • Large white LED backlight
  • True-rms for accurate measurements
  • Measures 10 A (20 A overload for 30 seconds)
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This powerhouse kit combines the Fluke 116 multimeter with a Fluke 323 clamp meter, giving you even more functionality. The clamp meter allows for non-contact current measurement, perfect for situations where accessing wires is tricky. This kit is ideal for technicians who need the ultimate versatility in their toolbox.


  • Non-contact voltage detection
  • AutoV/LoZ function
  • Automatic AC/DC selection
  • Min/Max/Average readings
  • Frequency measurements
  • Capacitance measurements
  • Certified for use in CAT III 600 V environments.

3. Fluke 87V Digital Multimeter – Runner Up

Best Option

Fluke 87 V

  • Maximum voltage: 1000 V
  • Accuracy: ±(0.05% + 1)
  • Maximum resolution: 10μV
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The Fluke 117 multimeter in this combo kit boasts features like automatic AC/DC detection and a large backlit display for easy reading in any lighting condition. The Fluke 323 clamp meter included features true RMS for accurate measurements, even with non-linear loads in modern HVAC systems. This combo offers top-notch performance for technicians who demand the best.


  • Industrial electrical multimeter
  • True-RMS AC voltage and current for non-linear signals
  • Captures short intermittents as short as 250 µS
  • CAT III 1000 V, CAT IV 600 V safety rated
  • Built-in thermometer and temperature probe included.

4. Fluke 179 True-RMS Digital Multimeter


Fluke 179

  • Industrial thermometer combo kit
  • Full featured DMM
  • 80BK Temperature Probe
  • Test leads
  • Robust, fast and accurate with manual and automatic ranging
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While undeniably powerful, the Fluke 87V is a feature-rich option that might be more suited for highly technical applications. Its advanced features and high price tag might not be necessary for all HVAC technicians. However, its accuracy, durability, and wide range of functionalities make it a top contender for those who need a versatile tool for various electrical tasks beyond HVAC.


  • CAT III 1000V, CAT IV 600V safety rating
  • Lifetime warranty included
  • Front panel allows closed-case calibration
  • Ergonomic design with integrated protective holster

Choosing the Right Fluke Multimeter

After reviewing and comparing the features and specifications of various digital multimeters for HVAC applications, I would highly recommend the Fluke 116 as the best choice for HVAC technicians.

The Fluke 116 is specifically designed for HVAC professionals, with a built-in thermometer that can measure temperatures ranging from -40°C to 400°C (-40°F to 752°F), making it ideal for diagnosing heating and cooling systems. Moreover, it offers microamps to test flame sensors, and its low input impedance helps prevent false readings due to ghost voltage, making it reliable and accurate.

Although the Fluke 116 may be a relatively average price compared to other multimeters in the market, its high accuracy, durability, and functionality make it a worthwhile investment for any HVAC technician. Overall, the Fluke 116 is the best choice for HVAC professionals who demand reliable and accurate measurements in their work.


We write everything about coffee and espresso machines for a few years. Our goal is to provide you with helpful content that you can trust based on our own personal experiences, information from manufacturers, and tips and tricks shared by coffee and espresso machine users online.

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