Milwaukee True RMS Multimeter

When considering a new multimeter for residential, commercial, or industrial use, the Milwaukee True RMS Multimeter (model 2217-20) stands out as a compelling option. Having spent considerable time with this tool, I found it to be a blend of advanced features and robust design, though it has its quirks.

Design and Build Quality

The first thing you'll notice about this multimeter is its rugged build. Milwaukee has incorporated over-molding, which significantly enhances its durability. The tool feels solid in hand, and it’s clear that it’s built to withstand the rough conditions of job sites. However, the rubber over-molding has a tendency to become sticky over time, which can be quite annoying and detracts from the overall experience. This seems to be a manufacturing material defect, and it’s something that Milwaukee should address in future iterations.

Display and Usability

One of the standout features of this multimeter is the white-on-black LCD display. The clarity is impressive, making it easy to read measurements even in bright sunlight or low-light conditions. The backlit display is a much-appreciated feature, especially when working in dimly lit areas. However, the display does have a downside; the plastic covering the screen is prone to scratching. Even gentle cleaning with a microfiber cloth can leave marks, which is disappointing for a tool in this price range.

The dial and buttons are well-placed and intuitive to use. The auto-off feature, though not heavily advertised, is a useful addition that helps conserve battery life. Speaking of batteries, the multimeter runs on standard AA alkaline batteries, which are easy to replace but may not last as long as some other battery types.

Performance and Accuracy

The Milwaukee True RMS Multimeter excels in providing accurate readings, thanks to its True RMS measurement capability. This feature ensures that you get reliable data, especially when dealing with complex waveforms. The tool can measure a wide voltage range up to 600 volts AC/DC, and it also supports auto-ranging for millivolts and milliamp measurements, which simplifies the process for users.

One of the more advanced features is the Lo-Z function, which eliminates ghost voltage, providing more accurate readings in complex electrical environments. The frequency measurement capability ranges from 10Hz to 50kHz, making it versatile for various applications. Additionally, the contact temperature measurement range from -40 to 752°F adds another layer of functionality, especially useful for HVAC professionals.

However, the multimeter is not without its flaws. The autoranging feature, while convenient, is slower compared to some other high-end models like the Fluke 116. This can be a minor inconvenience if you’re in a hurry. Furthermore, the resistance readings can sometimes be inconsistent, requiring multiple tests to get an accurate measurement.

Practical Use and Accessories

In practical use, the multimeter performs well in both residential and industrial settings. It’s sturdy enough to handle drops and rough handling, which is a big plus for professionals who need reliable tools. The tool also includes a built-in stand, which is handy for setting it up and testing circuits with both leads.

However, the leads themselves are a bit of a mixed bag. They are not as flexible as one might like, and their short length can be limiting in some scenarios. The snug fit of the leads into the multimeter is a double-edged sword; while it ensures a secure connection, it can be difficult to insert and remove them, especially when you’re in a hurry.

The multimeter also comes with a soft case, which, in my opinion, is not ideal. A hard molded case would offer better protection and justify the extra cost. The magnet accessory, designed to hold the multimeter in place, is another area where the tool falls short. It’s brittle and can become stuck, making it more of a hassle than a help.

Safety and Reliability

Safety is paramount when working with electrical tools, and this multimeter has a CAT III 600V safety rating, which is reassuring. However, there have been instances where the tool gave false negative readings, which is a serious concern. While this seems to be an isolated issue, it’s something to be mindful of. Always double-check critical measurements with another tool to ensure safety.

Final Thoughts

The Milwaukee True RMS Multimeter is a robust, feature-rich tool that performs well in a variety of settings. Its rugged build and advanced features like True RMS measurement, Lo-Z function, and wide voltage range make it a versatile choice for professionals. The display is clear and easy to read, and the tool is generally user-friendly.

However, it’s not without its drawbacks. The rubber over-molding can become sticky, the display screen is prone to scratching, and the autoranging feature is slower than some competitors. The leads could be more flexible, and the magnet accessory is less than ideal.

Would I recommend this multimeter? For the most part, yes. If you’re looking for a durable, accurate, and versatile tool, the Milwaukee True RMS Multimeter is a solid choice. However, if you require the fastest autoranging or the most flexible leads, you might want to explore other options. Overall, it’s a reliable tool that will serve most professionals well, but it does have room for improvement.