We live in an age where you can control your thermostat from your mobile phone or turn off the lights from your smartphone with a mobile app. Yet for all the smart features built right in most modern homes, you can’t plug in an HVAC multimeter and see how things are going while you are between the sheets!
An HVAC multimeter, or an “multimeter,” is a modern miracle of electrical, home, and digital wizardry. With this little device in hand, you can actually see how your air conditioner, furnace, or any other appliance is running, and in many cases, whether it’s about to break down before it does.
| Name | Category | Product |
|---|---|---|
| Fieldpiece SC260 Clamp Multimeter | Best Overall |  |
| Crenova MS8233D Auto-Ranging Digital Multimeter Home Measuring Tools | Budget Pick |  |
| Simpson 260-8P 12391 Relay Protected Black Analog Multimeter | Upgrade Pick |  |
1. Fieldpiece SC260 Clamp Multimeter
Pros:
- The scale technology can give you up to 99 measuring points
- It has an easy-to-read display for maximum accuracy
- It comes with a Hold function, auto shut-off, and a backlit display for ease of use
- The automatic overload protection will automatically turn off the unit if it is overload
- It also provides an RS-232 for communication with other devices
- The leads on this device are compatible with standard banana plug
- You can use this device in the field or in the lab
Cons:
- The screen tends to have an interference problem
- It can also be bulky to carry around
You can use this device in the field or in the lab. It comes with a large, easy-to-read display and a hold function as well. This feature allows users to store an important measurement and recall it later. The device can also measure True RMS and even comes with an automatic overload protection function.
2. Simpson 260-8P 12391 Relay Protected Black Analog Multimeter
The Simpson 260 relays multimeter from is a popular choice for both trade and DIY users around the globe.
While the price itself may be a bit steep compared to some other brands on the market, it’s worth your money. The robust, yet lightweight design features a compact, ergonomic, and easy-to-use construction, allowing you to use it with both hands. It boasts a number of features that make it the “best multimeter for the price,” as it comes with a flexible test lead with a high-quality black D-shaped contact. While the specs don’t specifically mention it, we believe the ATC function may have been used to prevent it from getting damaged during the sale.
3. Fluke 116 HVAC Multimeter
This multimeter from Fluke measures up to 2,200 V AC or DC and can measure currents of up to 200 A. The unit comes with a 3-inch backlit display so you can easily read the measurements without straining.
A built-in single-pole, double throw knife switch can be easily used to split the circuit that you’re testing and being able to use the multimeter on both ac and dc voltages is a definite plus. The unit also has a backlit display and a low battery indicator. Another feature that´s worth mentioning is the autoranging, which lets the meters select the proper range for testing.
4. Fluke 323 True-RMS Clamp Meter
Fluke 323 True-RMS Clamp Meter is a popular choice among HVAC technicians and engineers. The clamp meter features some of the best technology available in the market today. The device is designed with the consideration of safety in mind, including a user-replaceable screw-on chuck cover and internal safety shut-off. Features also include a fast-acting current clamp indicator and true RMS accuracy.
The device comes with a 19mm jaw and a relatively heavy but compact design for fast and easy measurements. Another noteworthy feature is that the meter is accessible from both its left and right sides to make readings easier. The battery is included but can be replaced if required. An optional temperature sensor can also be added.
The Fluke 323 clamp meter is guaranteed to offer you high quality measurement results provided you know how to handle it. It’s important that you read the user manual carefully to enable you to use the device properly. The replacement parts are also available if something happens to the device while you’re measuring.
5. Crenova MS8233D Auto-Ranging Digital Multimeter Home Measuring Tools
This Crenova digital multimeter is a handy gadget to have around the house. It’s great for electrical projects, DIY renovations, and general household tasks.
The Crenova multi-meter comes with a protective sleeve and test leads with alligator clips.
The range of this multimeter is 200A AC; 400V DC; 2000”ohm, 3200”Y/1”S AC; 400V DC, and 4200”uF.
6. Amprobe AM-510 Commercial/Residential Multimeter
This Amprobe AM-510 multimeter is not only great for HVAC applications, but it also can be used to check electronic devices for shorts and damage. It’s the only HVAC multimeter we tested that has the ability to detect non-contact voltage of up to 5,000V. The AM-510 also includes a large clear display for easy reading.
It’s important to note that this multimeter is only made for residential and commercial HVAC applications. If you’re looking for a multimeter that’s more versatile (e.g., for electronics outside of HVAC), there’s a good chance that this device may not be for you.
The AM-510 is easy to use with only three and a half buttons for you to use. It also comes with a carrying case so you can easily transport it around from job site to job site.
7. UEi Test Instruments DL369 Digital Clamp-On Meter
Pros:
- Small and portable with a screen size of 1“ x 2“
- Allows you to measure the voltage, current, and the frequency with its ability to switch from AC to DC measurements
- With the temperature probe, you can easily measure the temperature
- With the MAX/MIN button, you can easily read the highest or lowest value in the memory
- It features a decimal hz or frequency measurement for easy reading
- The quality of the material used in this best digital multimeter is outstanding
The UEi Test Instruments DL369 Digital Multimeter is a really nice product. It provides the user with accurate measurements, aesthetically pleasing to the eye, and user-friendly. If you are looking for a multimeter that provides the measured values in a clear, easy to read LED display, this product may be the one for you.
Frequently Asked Questions (FAQ)
What is the best multimeter for HVAC?
To help homeowners get an accurate reading of the total number of BTUs, COP/SEER, and wattage used, you need to have a multimeter that continuously monitors and keeps track of electricity measurements.
A good quality multimeter that provide plenty of functionality should include the basic features for testing voltage, current, and resistance with the upper limit of 15A and 3000V.
The best multimeter for HVAC will provide you with a unit with a bright LCD display to give a clear view of the readings, and have the ability to save the recording for later reference.
Your multimeter must also have a PC interface to enable data transfer and provide insight into the issues that may have led to poor-performance.
What is the best multimeter on the market?
A multimeter is a portable test instrument which supports both analog and digital features. The analog features are used primarily for basic electrical functions including voltage, power, and current. The digital features include more accurate measurement points such as temperature, capacitance, duty cycles, and frequency.
The most important feature you will need to have is an auto-ranging ADC (analog-to-digital converter) which automatically identifies the level of current and voltage being measured and then makes the appropriate digital readout on the meter. This feature is very important when it comes to the continuity, frequency, and temperature measurements.
Are UEI meters Good?
According to the reviews, the UEi DM/26 Multimeter is indeed a good device. A definite good choice for someone who is looking for a good product with a reasonable price.
While it may not be as high in quality as Fluke, it still does a decent job at a manageable price.
The UEi DM26 beats the Fluke in cost and has a lot of the same features, such as an auto-ranging, high-gain input, and temperature capability.
The DM/26 is fully CAT III 600 V, CAT IV 300 V, CAT II/III rated. If you need something for strictly residential applications or for use in industrial setting, this model is a good choice.
What type of meter do HVAC technicians use to measure current?
One question I get a lot is from people who are in the heating and cooling business. They want to know what kind of meter would be best for taking current readings on a circuit, and also what is the best way to measure for phase rotation.
Conclusion
A multimeter is a crucial tool for measuring a whole host of electrical components. In fact you can hook up a multimeter to your car or HVAC system and find out if there is a problem before the problem can affect your home or even your car. The best multimeter is going to be precise, have a large backlit screen, and have all the finest safety settings. In this guide, we’ve reviewed the best HVAC multimeters, so you can find out which ones meet your needs.
Our Recommendation
| Name | Category | Product |
|---|---|---|
| Fieldpiece SC260 Clamp Multimeter | Best Overall | |
| Crenova MS8233D Auto-Ranging Digital Multimeter Home Measuring Tools | Budget Pick | |
| Simpson 260-8P 12391 Relay Protected Black Analog Multimeter | Upgrade Pick | |