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10 Best Digital Multimeters 2025 in the United States

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Our Top Picks

#2

AstroAI Digital Clamp Meter Multimeter 2000 Counts Amp Voltage Tester Auto-ranging with AC/DC Voltage, AC Current, Resistance, Capacitance, Continuity, Live Wire Test, NCV, Blue

Rating
10.0
Accuracy
Additional Features

Most important from
9415 reviews

Accuracy
This meter offers excellent accuracy and ease of use at a very reasonable price.
Additional Features
The clamp feature is extremely useful for quick AC current measurements.

The AstroAI Digital Clamp Meter is a handy tool designed mainly for measuring AC current using its clamp feature, plus AC/DC voltage, resistance, capacitance, and continuity. It offers auto-ranging and a 2000 count display, which means it gives reasonably detailed readings suitable for most home or light industrial electrical troubleshooting. The meter’s non-contact voltage (NCV) feature adds a safety layer by alerting you to live wires via sound and light without touching them. One important limitation is that it cannot measure DC current, so if you need that, this isn’t the ideal choice.

Its accuracy and resolution are typical for this price range, providing enough detail for everyday electrical tasks but not for precision lab measurements. The device is thoughtfully designed with features like data hold, max/min recording, backlit screen, and a built-in flashlight, making it easier to use in dim or tight spaces. Safety-wise, it meets category III 600V standards, meaning it’s safe for most household and industrial electrical environments.

Powered by two AAA batteries, it’s lightweight and portable. If you mainly need a reliable and affordable clamp meter for basic AC current and voltage checks with added convenience features, this model fits well. For advanced or DC current measurements, other options may be more suitable.

Rating
10.0
Accuracy
Additional Features

Most important from
9415 reviews

Accuracy
This meter offers excellent accuracy and ease of use at a very reasonable price.
Additional Features
The clamp feature is extremely useful for quick AC current measurements.
#3

Fluke 117 Digital Multimeter, Non-Contact AC Voltage Detection, Measures Resistance/Continuity/Frequency/Capacitance/Min Max Average, Automatic AC/DC Voltage Selection, Low Impedance Mode

Rating
9.9
Accuracy
Resolution
Input Impedance

Most important from
4900 reviews

Accuracy
The True-RMS capability ensures accurate measurements on non-linear loads, which is crucial for modern electrical systems.
Resolution
The 6000 count display with a responsive bar graph provides clear and precise readings, which is highly appreciated during use.
Input Impedance
The low input impedance feature effectively eliminates false readings caused by ghost voltages, enhancing measurement accuracy.
Safety Ratings
VoltAlert technology is a standout feature, allowing for safe and convenient detection of AC voltage without direct contact.
Additional Features
The large LED backlight is a useful addition, allowing for easy work in dimly lit areas without straining the eyes.

The Fluke 117 Digital Multimeter is a solid choice for both professionals and DIY enthusiasts looking for a reliable tool for electrical testing. One of its standout features is the VoltAlert technology, allowing users to detect AC voltage without direct contact, which enhances safety and convenience. The automatic AC/DC voltage selection makes it easy to measure different electrical signals without manual adjustments, catering to varied needs in the field. With a true RMS capability, the Fluke 117 delivers accurate measurements even on non-linear loads, making it particularly useful for modern electrical systems.

In terms of specifications, it offers a decent measurement accuracy of +/-0.5%, which is suitable for most tasks. Its low input impedance helps eliminate false readings caused by ghost voltages, ensuring the reliability of measurements. The large LED backlight is a thoughtful addition, allowing you to work in dimly lit areas without straining your eyes.

The Fluke 117 is an excellent option for those who require precision and versatility in their measurements, particularly electricians and technicians. Its combination of features and dependable performance makes it a worthy investment.

Rating
9.9
Accuracy
Resolution
Input Impedance

Most important from
4900 reviews

Accuracy
The True-RMS capability ensures accurate measurements on non-linear loads, which is crucial for modern electrical systems.
Resolution
The 6000 count display with a responsive bar graph provides clear and precise readings, which is highly appreciated during use.
Input Impedance
The low input impedance feature effectively eliminates false readings caused by ghost voltages, enhancing measurement accuracy.
Safety Ratings
VoltAlert technology is a standout feature, allowing for safe and convenient detection of AC voltage without direct contact.
Additional Features
The large LED backlight is a useful addition, allowing for easy work in dimly lit areas without straining the eyes.

Buying Guide for the Best Digital Multimeters

Choosing the right digital multimeter (DMM) can be a bit overwhelming due to the variety of models and features available. A digital multimeter is an essential tool for anyone working with electrical circuits, whether you're a professional electrician, an electronics hobbyist, or a DIY enthusiast. The key to selecting the best DMM for your needs is understanding the specifications and how they relate to your specific requirements. Here are some important specs to consider when choosing a digital multimeter.
AccuracyAccuracy refers to how close the measurements displayed by the multimeter are to the actual values. This is crucial because precise measurements are essential for diagnosing and troubleshooting electrical issues. Accuracy is usually expressed as a percentage. For general use, an accuracy of ±1% is often sufficient. For more critical applications, such as in a laboratory or for professional use, you might need a multimeter with an accuracy of ±0.1% or better. Consider what level of precision you need based on the tasks you will be performing.
ResolutionResolution is the smallest change in a measured quantity that a multimeter can detect. It is typically expressed in digits or counts. For example, a 3.5-digit multimeter can display readings from 0 to 1999. Higher resolution allows for more precise readings, which is important for detailed work. If you are working on high-precision electronics, a higher resolution multimeter (such as 4.5 digits or more) is beneficial. For basic electrical work, a lower resolution (3.5 digits) is usually adequate.
RangeRange refers to the span of values a multimeter can measure for a given parameter, such as voltage, current, or resistance. Some multimeters have auto-ranging capabilities, which means they can automatically select the appropriate range for the measurement. This feature is convenient and reduces the risk of incorrect readings. If you prefer manual control, ensure the multimeter covers the ranges you need. For example, if you work with both low and high voltages, make sure the multimeter can handle the full spectrum of your requirements.
Input ImpedanceInput impedance is the resistance the multimeter presents to the circuit being measured. High input impedance is important because it ensures that the multimeter does not significantly affect the circuit during measurement. Most modern digital multimeters have a high input impedance (typically 10 megaohms or more), which is suitable for most applications. If you are working with sensitive electronics, ensure the multimeter has a high input impedance to avoid loading the circuit.
Safety RatingsSafety ratings indicate the maximum voltage and category of circuits the multimeter can safely measure. These ratings are defined by standards such as CAT I, CAT II, CAT III, and CAT IV, with CAT IV being the highest level of protection. The higher the category, the more protection the multimeter offers against transient voltage spikes. Choose a multimeter with a safety rating appropriate for your work environment. For example, CAT III is suitable for most household and commercial electrical work, while CAT IV is necessary for industrial applications.
Additional FeaturesAdditional features can enhance the functionality and convenience of a multimeter. Common features include continuity testing, diode testing, temperature measurement, and data logging. Some multimeters also offer True RMS (Root Mean Square) measurement, which provides more accurate readings for AC signals. Consider which additional features are important for your specific tasks. For instance, if you frequently work with AC circuits, a True RMS multimeter is beneficial. If you need to measure temperature, look for a multimeter with a built-in thermometer.

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