10 Best Digital Multimeters 2025 in the United States

The Klein Tools ET270 is a solid choice if you're looking for a versatile digital multimeter with some handy extras. It measures AC/DC voltage up to 600V and resistance up to 40 megaohms, which covers most household and light professional electrical tasks. Its auto-ranging function means you don’t have to manually select ranges, simplifying the measurement process, but you still have the option to switch to manual if needed. The meter offers good accuracy for general use, and its resolution is sufficient to catch subtle differences in readings.

One standout feature is the receptacle test mode that helps detect common wiring faults and tests GFCI receptacles, which adds an extra layer of electrical safety. It even shows GFCI trip time, useful for troubleshooting. Safety ratings include CAT III and CAT IV with protective caps on the test leads, meaning it’s designed to handle typical home and commercial electrical environments safely. The bright backlit LCD display improves visibility in darker spaces, and convenience features like test lead holders, a kickstand, and an optional magnetic hanger allow for hands-free operation, which is great when working alone.

It also includes a battery test for common household batteries and a circuit breaker finder mode, adding extra value beyond basic multimeter functions. The unit is powered by 2 AAA batteries, which are included, keeping it lightweight and portable. While it covers many bases, this model might not satisfy users needing very high precision or specialized functions found in more advanced meters. The Klein Tools ET270 is a user-friendly and reliable multimeter suited for homeowners, electricians, and DIYers who want a tool that goes beyond basic voltage and resistance measurements, with helpful safety and troubleshooting features included.

The Klein Tools MM420 digital multimeter offers a solid mix of features suitable for general electrical work and DIY enthusiasts. It can measure AC/DC voltage up to 600V and current up to 10A, covering most common tasks. The inclusion of True RMS (TRMS) technology means it provides more accurate readings on complex signals compared to simpler meters. Auto-ranging makes it easier to use by automatically selecting the correct range, so you don’t have to guess.

The meter also measures resistance up to 50 MΩ and offers extra tests like temperature, capacitance, frequency, duty cycle, continuity, and diode checks, making it quite versatile. Klein Tools designs their meters with safe and standard input impedance suitable for most electronics work. Safety is enhanced with Lead-Alert, which lights up to confirm your test leads are correctly placed, helping avoid measurement errors or hazards. The backlit LCD is great for working in dim areas. Convenience features like lead holders, a kickstand, and optional magnetic hanger improve usability during hands-free tasks.

Powered by included AAA batteries and weighing about 14.5 ounces, the meter might feel a bit bulky compared to more compact models. It is suitable for electricians, technicians, and serious hobbyists who want a reliable, easy-to-use multimeter with plenty of functions without stepping into professional-grade pricing or complexity. Its safety ratings make it ideal for most common uses, though it may not be intended for very high-energy industrial environments.

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.