Klein Tools MM400 Multimeter
A multimeter's mechanical operation, country of origin, and the accuracy of the test's input parameters weren't important because we only used it to test voltage, current, and resistance. But the MM400 multimeter was comfortable to hold and simple to use.
The Klein Tools MM400 has all the features you want in a basic multimeter. It comes with a thermocouple adapter, which is handy for testing semiconductors, and it also has a screw-terminal voltage probe. It's capable of measuring AC and DC voltage up to 600V, and it's fairly accurate, with almost no offset. It has a large, easy-to-see meter that's good for both reading numbers on the LCD and for knowing at a glance whether or not your readings are accurate. The MM400 is an intuitive, reliable tester that works well in a variety of settings. At $60, it's one of the best multimeters you can reasonably get, and it's fantastic value.
INNOVA 3320 Digital Auto-Ranging Multimeter
The INNOVA 3320 auto-ranging multimeter is one of the best models we tested and is reasonably priced for what you get.
With an easy-to-read backlit display and a sharp LCD screen for previewing measurements, the INNOVA 3320 Auto-Ranging Digital Multimeter is easy-to-use, and it delivers accurate results to within 0.1% of its rated value. It has a one-button interface that switches between measurements and test modes, a color-coded key that clarifies which tools to use for which tasks, and an enlarged digital display that's easier to read than most. The meter also has a built-in backlight for nighttime use and a heavy-duty casing that's IPX7 waterproof, so it can survive moderate rain or splashes from an enthusiastic child. If you can get your multimeter to fit into your toolbox, the INNOVA 3320 Auto-Ranging Digital Multimeter is a great one.
Fluke 101 Basic Digital Multimeter Portable Pocket Meter Equipment Industrial
Fluke test meters are versatile tools with loads of features but we found them to be complicated to use, bulky, and pricey. Be sure you're looking for a lower-cost option.
Fluke 101 Basic Digital Multimeter is suited for performing basic electrical measurements, including continuity and diode tests. It contains a digital multimeter with 600V CAT III safety rating, 0.5% dc accuracy, auto shut off, backlight, polarity indicator, 9V battery, test leads and battery level indicator.
Klein Tools MM600 HVAC Multimeter
These multimeters measure more functions than any other multimeter we tested, but they aren't as easy to use. They'll help you troubleshoot nearly any electrical problem, but they're also prone to errors.
Designed with the right tools for the job, Klein Tools' new MM600 HVAC multimeter meets and exceeds the demands of HVAC professionals. The MM600 features a rugged, 600V CAT IV rating, exceeding NFPA 70E for conducted arc and flash hazards; and its CAT III rating for 1000V AC/DC protects both the user and the device. The MM600 measures up to 1000V AC/DC voltage, 10A AC/DC current and 40M resistance plus temperature, capacitance, frequency, duty-cycle, test diodes and continuity. The auto-ranging detection provides accurate measurements at a glance. The large, 3.5-digit, LED backlight LCD displays measurements up to 100,000 counts and is easy to read in both bright sunlight and dimly-lit conditions. Klein Tools' exclusive rock-solid ratcheting jaw and slip-resistant rubber grip provide increased control and grip for extended use. The MM600 also incorporates a patented rubber casing, ergonomic soft grip, and a side clip on the battery housing for safe storage of accessories. Additional features include 600V insulation resistance, 1000V peak withstand, 1000V surge current withstand, 10A RMS insulation resistance, 10A RMS current continuity, 10A RMS continuity, 40M resistance, 40M continuity, 0.1% voltage accuracy, and 0.01% current accuracy.
KINCREA Kuman Digital Multimeter
This paper-clip-size digital multimeter is our favorite of the bunch. With the 6000-count screen, dual ranges, auto and manual voltage readout, and a wide range of advanced features, it's perfect for both professionals and DIY gurus.
This multimeter is a neat and compact unit with a lot of features, including an auto-ranging button for quickly taking a reading in ohms, volts, amps, amperes, and percent. The unit also has other useful features, like date hold, a hanging magnet, and a 120-point auto-ranging feature for testing capacitors. Just keep in mind that readings aren't as precise as with other multimeters, and the display is rather small, so you might have a hard time seeing small numbers. Also, this multimeter uses AAA batteries, so it's on the heavy side, and it doesn't have a clip or holster, so it's easy enough to lose. The screen resolution is also a bit low, so details are hard to see. However, this multimeter still has some benefits, including that it's extremely easy to use, and it includes temperature probes, a temperature thermometer, 120-volt AC and DC plug adapters, and 40-feet of red and black test leads.
Fluke 101 Basic Digital Multimeter Pocket Meter Portable Equipment Industrial (Original Version)
The Fluke 101 Basic Digital Multimeter Pocket Portable Meter Equipment Industrial (Original Version) is a professional instrument for electricians and technicians. It is easy to use and meets a lot of requirements on testing.
Amprobe's multimeter can test a wide range of AC and DC voltage and resistance measurements. Its sturdy construction, large display, and automatic data hold make it one of the best multimeters you can buy.
The Amprobe AM-510 is the least expensive multimeter that we tested, but it's also the most robust, measuring AC and DC voltages up to 600 V, AC current in a range of 1 mA to 600 A, DC current from 10 mA to 600 A, resistance, frequency, capacitance, and duty cycle. The backlit LCD display is easy to read, and it has a large digital display that makes it easy to see if all the parameters you need are shown in real-time. The AM-510 comes with a plastic case and clip, but it's much heavier and bulkier, with three times as many test leads as the one found on the Fluke 87V, which we tested alongside it as a direct competitor. As a result, it's a bit of a hassle to attach the leads to the tester, but once you're attached, the AM-510 is easier to use than the Fluke. The Amprobe's relative zero mode makes it easy to see the difference between voltages or current readings to help avoid electrical shock. Its accuracy is 0.1% (the Fluke's is 0.5%). A clamp meter is a better choice if you're working on small appliances or wiring, but for basic home troubleshooting, the Amprobe AM-510 is more than enough.
FLUKE-101 Digital Multimeter
For basic measurements, this multimeter provides accurate DC readings. Its fully insulated autorange clamp is relatively sensitive, and a beep informs you when you have continuity.
Digital multimeters are useful for measuring current, voltage, resistance, and continuity, and are often the first digital test gear a new DIYer or technician will use. The most affordable multimeters generally monitor two or three of these (for example, only volts) and are a bit pricey. The Fluke-101, however, has all the features you'll likely need in a multimeter: all the basics, plus a diode and continuity test, and even an ammeter with resolution down to 1/10 of a milliamp. It doesn't have an auto-ranging function, but the manual tells us that most DIYers never use that feature, so the Fluke-101 is a no-brainer.
AstroAI Digital Multimeter
This multimeter is our best pick for a first multimeter. Its low price and wide range of features make it a good choice for both the beginner and experienced electrician.
When it comes to measuring AC current and voltage, few multimeters are as reliable, as versatile, or as affordable as the AstroAI Digital Multimeter. It's the only multimeter we tested with True RMS current measurement, so our tests were consistent. The AstroAI Digital Multimeter is extremely easy to use as well. It has handy features like the adjustable auto-ranging function, and it includes useful accessories like a 9-volt battery and alligator clips. Unlike some other multimeters we tested, it offers a backlit LCD for easy viewing in dim light, and it has a rotary switch so you can quickly choose between measurement modes. While the AstroAI Digital Multimeter can't test AC capacitors, it's a handy device for testing resistors, continuity, and continuity checks, so it's a great all-around budget multimeter.
kuman Digital Multimeter
A great buy for an electronic hobbyist, this multimeter is a versatile device with a LCD screen, a large display size, and a variety of features and functions. Although it comes with only two test leads, you can supplement the set with test leads from other brands.
The KUMAN digital multimeters have multiple functions and work well, though the manual is in Chinese. The digital multimeters are accurate, with a 0.1% full range error on voltage, 0.5% on current, and 2% on both resistance/capacitance. The digital multimeters have good automatic range, with a 1.4% range error on voltage, 1% on capacitance, and 0.3% on resistance/current. The digital multimeters have good auto-polarity detection, and automatic measurement is very fast. The digital multimeters can record up to 20 readings in an auto-record mode and up to 99 readings in manual mode. The digital multimeters are compact and portable, with easy-to-read displays. They're also very affordable, offering a lot of bang for your buck.