By Sean Anderson, Fluke Application Specialist
If you work in HVAC, you already know your tools can make or break your day. There’s nothing worse than troubleshooting a stubborn system with a multimeter that wasn’t built for the job. That’s why I always keep the Fluke 116 Digital HVAC Multimeter on my belt. It’s compact, accurate, and, most importantly, built with HVAC techs in mind.
Let’s break down why this tool is a must-have and how it makes long days in the field a little easier.
Learn more about the Fluke 116 HVAC DMM in this quick overview video.
Who Is the Fluke 116 HVAC Multimeter For?
- If you’re an HVAC tech, this is your meter. Period. It’s got everything you need to troubleshoot heating and cooling systems without the extra fluff.
- If you’re an electrician working on HVAC systems, this is a solid backup meter. It won’t measure high amperage (so you’ll still need a clamp meter), but it excels at low-voltage troubleshooting.
- If you’re a general contractor or a maintenance tech, the 116 is a great all-around meter — especially if you work with HVAC regularly.
Temperature and Microamp Measurements — Because You Actually Need Them
If you’ve ever used a standard electrician’s multimeter on an HVAC system, you know it doesn’t always get the job done. Sure, it measures voltage and resistance, but what about temperature? How about microamps for flame sensors? That’s where the Fluke 116 shines.
- Built-in thermometer: No more dragging a separate temperature probe around. Just plug in the included thermocouple and get instant readings on air handlers, supply/return vents, and refrigerant lines.
- Microamp capability: If you’re troubleshooting a flame sensor, measuring microamps is a necessity. The Fluke 116 lets you check it in seconds.
No more guesswork — the 116 saves you wasted time swapping out parts that aren’t broken.
Ghost Voltages? Not Today.
Ever gotten a phantom voltage reading that made you double-take? The Fluke 116 has a Low Input Impedance (LoZ) mode to eliminate ghost readings. So when you see a reading that says 24V, you know it's real.
This is huge in HVAC because we’re constantly dealing with control circuits. If you’re diagnosing a thermostat issue, the last thing you want is misleading readings. With LoZ, you get accurate voltages and faster troubleshooting.
It’s Tough, It’s Compact, and It Just Works
Some meters feel like they were designed for a lab, not the real world. The Fluke 116 is small enough to fit in your tool bag but built like a tank. Drop it, toss it in the truck, let it ride in your tool belt — it can take a little rough handling, no problem.
And the display? It’s big, bright, and backlit. If you’re wedged inside a dimly lit furnace closet, you’ll still be able to read the numbers on the screen without squinting.
The Right Tool for Any HVAC Job
Just because you can use a general-purpose multimeter on an HVAC system doesn’t mean you have to. The Fluke 116 is built specifically for your line of work. It gives you the readings you actually need, helps you save time, and holds up in the field.
If you’re still using an old meter that makes HVAC work harder than it needs to be, maybe it’s time for an upgrade. Your job is tough enough — your tools shouldn’t make it harder.
About the Author
Sean Anderson has been a product application specialist at Fluke since 2024, drawing on his AD01 Electrical Administrator background and power systems knowledge to deliver comprehensive support and expert guidance for users of the multimeter, clamp meter, and oscilloscope product lines. Since joining Fluke, Sean has focused on customer-facing research to assist in developing innovative new products and educational resources for core electrical test and measurement tools. With a commitment to customer satisfaction, great user experience, and clear communication, he continues to empower professionals in the field through hands-on service and support. Connect with Sean on LinkedIn.