Making the choice in the best multimeter under 100 dollars is easier than you think! Even with numerous choices, there are only a handful that stands out for their excellent quality. Keep in mind that a $100 multimeter isn’t exactly the most expensive multimeter with the most advanced features but it’s more than sufficient for general uses.
The great thing about these under $100 multimeters is their combination of relative affordability and high quality. These are also reliable in terms of the accuracy of their readings, a must when testing electrical appliances, devices and circuit boards.
10 Best Multimeters Under 100 Dollars
1. Extech EX330- best automotive multimeter under 100
Don’t dismiss the Extech EX330 because of its comparatively small size! Aside from being a product of a trusted brand, its excellent features make it the best multimeter under 100 dollars for many users. Professionals point out its automatic ranging, non-contact AC voltage detector and capacitance features as more than what they expected.
Quick Summary
- CAT II to 600V
- Manual and autoranging features
- 4000-count large display
- Relative mode
- Measures standard testing ranges
1. Fairly accurate readings
The measure of a multimeter is in its exact readings and the EX330 is fairly accurate. With proper use, its accuracy rate is down to 0.5% on DC volts, a great feature for diagnosing issues in household electronics, car wiring and computers.
The 4000-count display shows these readings within a second or so, a fast response rate. The unit itself is compact in size and, thus, it can be easily held in the hands and stored in a tool bag. The case is tough as nails, so to speak, so it’s suitable for medium-duty use.
2. Comes with extra features
The EX330 has several extra features for more functionality and, thus, greater value for your money. The non-contact AC voltage detector quickly detects mains voltage in a wire even behind a wall or at a socket outlet. But it doesn’t display the voltage reading on the screen.
Other features include relative mode, max hold and thermometer.
- Solid construction
- Fast response rate
- Excellent user’s manual
- Increased functionality
- Great value
- No backlight
2. INNOVA 3340- best digital multimeter under 100 dollars
The Innova 3340 is tailored for the unique needs of the automotive market and, in fact, it’s a common tool for engine technicians and car electricians. But it’s also useful in standard electrical measurements for household appliances, circuit boards and even HVAC, thanks to its numerous input ranges. These are among the reasons why we consider it as the best budget digital multimeter under 100 dollars, too.
Quick Summary
- Tests power cycle, alternator diodes and wirings, among others
- Comes with inductive RPM clamp, temperature probe and carrying case
- Automatic ranging
- Standard testing ranges
- Comes with test lead holders
1. Excellent for automotive applications
There are numerous feature for vehicle engine tests on the Innova 3340, such as RPM checks, alternator outputs and tacho check. The RPM checks are reliable for both non-distributor ignition and conventional systems. There are also a clamp for hands-free checking of ignition cables as well as battery voltage and temperature checking.
2. Autoranging feature
Since it’s an autoranging multimeter, it’s easier to use than a not autoranging multimeter. But its autoranging feature is typically slower so it needs a few seconds to work out the correct range. It’s relatively accurate, nonetheless, so it offsets the slight lag.
It’s useful in measuring basic inputs, such as volts, amps, continuity and resistance. Take note that it isn’t recommended for many electronics tests due to its lack of capacitance input function.
- Sturdy case and construction
- Great function set for automotive testing
- Fairly accurate measurements on most functions
- Data hold
- Clear display
- Display doesn’t have backlight
3. Klein Tools MM600 HVAC Multimeter- best multimeter under 50
The MM600 earned its place as the best hvac digital multimeter under 50 bucks because of its versatile applications. It’s a true root mean square device and, thus, it’s a useful multimeter for professionals working with variable AC drives, as well as for HVAC electricians and general purpose users. Its versatility is a product of its wide range of features including auto hold, low impedance mode and temperature input.
Quick Summary
- CAT IV safety standard rating 600V
- Diode and continuity tests
- Measures resistance, frequency, capacitance and power cycle
- Auto and manual ranging
- Low impedance for decreased ghosting
1. Impressive accuracy
The MM600 has an impressive accuracy rate of 0.2% on basic DV voltage while its high AC amperage is at acceptable levels. Even its capacitance and continuity ranges are surprisingly quick for its price while its low impedance mode decreases, if not eliminates, ghost voltages. Of course, it measures numerous measurement criteria including voltage and temperature, even micro-amps.
2. Auto ranging
The autonranging feature is its default mode so using it is as easy as selecting a range and getting a measurement. But you can change to manual by pressing the Range button, which means slightly better response time.
There are also Max/Min modes for taking the highest and lowest values and a relative mode for values comparison and zeroing.
- Solid build
- Good set of features
- High level of accuracy
- Comes with carry case and alligator clips
- Large screen with backlight
- Battery life could be longer
4. Proster VC99 Auto-Ranging Digital Multimeter- best multimeter for the money
Professionals and serious hobbyists consider the Proster VC99 as a good multimeter for occasional use, as a spare meter, and suitable for lower energy work. While it has its limitations, it’s a reliable multimeter for measuring numerous testing ranges in the voltage and current criteria. It’s useful for measuring up to 20A albeit timed.
Quick Summary
- Manual and autoranging feature
- Measures AC/DC voltage, resistance and frequency
- Measures temperature and power cycle
- LCD display
- Comes with batteries, test leads and temperature sensor to your test probes
1. Fairly fast autoranging feature
The Proster VC99 has its autonatic ranging by default but it has a manual range, too. Keep in mind that it’s an under-100 multimeter so its autonatic ranging response isn’t ultra-fast but it’s still fast, especially for the price. Besides, it’s easy enough to increase the speed by reverting to manual range, particularly when measuring resistance and capacitance.
It has other practical functions, too, such as the Max/Min mode for seeing a signal’s high and low points; a relative mode for comparisons between present and stored values; and a transistor hFE.
2. Excellent display
We have to say that its display is impressive! The displayed digits are large and clear, thanks to the 6000-count resolution while the 3x per second refresh rate is just as impressive for the price.
- Full-sized meter
- Good set of features
- Measures standard testing ranges plus micro-amps
- Durable construction
- Ready-to-use out of the box
- Low safety rating
5. Oscilloscope Multimeter 2.0 Update- best cheap multimeter
This Liumy-branded voltage meter is considered as the best multimeter for under 100 dollars because of the significant updates that have been made to it. While the old model delivered satisfactory performance, it fell short on many performance aspects. The update, fortunately, features faster sampling speed, better accuracy and better safety features.
Quick Summary
- Measures standard testing ranges
- Comes with testing lead, carry bag and user manual
- Designed with software calibration technology
- LED backlight
- Built-in 55V/20A explosion-proof fuse
Allows for better work efficiency
When it comes to speed, this Liumy multimeter delivers particularly on faster sampling speed. You can see the measurements in as little as three seconds on the screen, a great feature when testing numerous connections.
The measurements are relatively accurate, too, thanks to the combination of a dedicated chip, memory calibration coefficients and software calibration technology. It measures nearly all of the standard testing ranges including AC/DC voltage, current, resistance up to 20MΩ, frequency up to 200KHZ, and capacitance up to 20μf.
Clear display
The large screen has a backlight that allows for its use in dim light conditions. You can easily see the readout in most angles, in both bright and dim light – no washout. Its other features include silent mode, automatic shutdown and automatic sleep mode.
- Comes with case and batteries
- Works well on most testing situations
- Great display
- Comes with resistor checker
- Fair price
- Slightly less sturdy construction
6. Meterk Digital Clamp Meter- best clamp multimeter under 100
The Meterk MK06 is the best clamp multimeter under 100 because of its true root mean square range, a must if you’re looking for a high level of accuracy. Its large digit LCD screen clearly displays the readings while its intuitive layout makes it even easier to choose the testing range. But it has its minor flaws, too, such as its comparatively slow response rate.
Quick Summary
- True root mean square autonatic ranging capability
- Measures standard testing ranges
- Comes with live line and NCV testing functions
- Overload safeguard
- Continuity pick
1. Multiple purpose
With its autonranging feature, it’s easier and faster to use since there’s no need to manually select the testing range. But remember that the autoranging feature can be a tad slower on the response.
Despite its budget price, its readings are comparatively accurate and it’s one of the reasons for its popularity. Such accuracy is due to its true root mean square design, which allows for near-precise readings of AC/DC voltage and current, frequency, capacitance and resistance as well as diode and duty cycle.
2. Easy to use in tight and dark situations
The high-resolution large LCD has a backlight that makes it easy to see the readings in dim light conditions. There’s a built-in flashlight, too, for checking the outlets and lines in dark places, too.
- High level of accuracy
- Non-contact voltage detection
- Robust body build
- Comes as a complete set
- Nice autonatic ranging feature
- Defaults to DC setting
7. Fluke 101 Multimeter- best Fluke multimeter under 100
The Fluke 101 is the best multimeter under 100 because it goes beyond being a beginner digital multimeter. Professionals consider it as basic because it doesn’t have the sophisticated functions of more expensive multimeters but it more than suffice for basic electrical tests. Serious hobbyists agree since it’s a great multimeter for residential and commercial, even HVAC, uses.
Quick Summary
- CAT III safety rated up to 600V
- 5% DC volts accuracy
- Data hold
- Continuity test and diode test
- Auto power off function
1. Compact and lightweight
The Fluke 101 is among the smallest multimeters in the Fluke line – it’s about half the size of 87V – and, thus, the lightest. These qualities make it easy to stow in a belt bag, a tool belt or a laptop bag. You know it’s there but it doesn’t add much to the weight or take up too much space.
2. Fairly accurate readings
Keep in mind that the Fluke 101 has limited ranges so it doesn’t work well in light industrial uses. But it’s an automatic ranging multimeter that works well in residential and commercial applications! It provides fairly exact readings on AC and DC volts, frequency and resistance; it can’t measure current. It’s also a CAT III safety rated multimeter so it’s god enough for testing three phase installations and load-side single phase installations.
- Robust build quality
- Portable size and light
- Suitable for testing most ranges
- Decent test leads
- Good price
- A tad slow on continuity and auto ranging
8. Klein Tools MM400- best cat 3 automotive multimeter under 100
The Klein brand is proudly made in the USA and it’s among the reasons for its continued popularity. The MM400 is in the running for the best digital multimeter under 100 because it combines a tough build, a variety of testing ranges and a suitability for most applications. But we have to note that it’s best not to use it beyond light industrial applications lest it becomes a safety hazard.
Quick Summary
- Measures voltage and amperage
- Measures resistance range up to 40MΩ
- CAT III safety standard rating up to 600V
- Average RMS
- Measures temperature
1. Measures most testing ranges
Klein Tools takes pride in its multimeters being designed by professional electricians and it shows. The control panel has an intuitive design that makes it easy to use while its testing ranges are good for the price point.
It can measure standard testing ranges, such as AC/DC voltage as well as capacitance and temperature. But it’s important to remember that it doesn’t have large spans so it’s limited in applications.
2. Sturdy construction
It may be on the compact side but it’s a Klein multimeter and, thus, it’s as sturdy as they come. It should be able to withstand a few years of regular and proper use, perhaps a few drops.
- Compact, lightweight and easy to use
- Comes with a thermocouple
- Autoranging feature with micro-amps measurement
- Clear backlit display
- Great testing lead for the price
- Not a true root mean square device
9. AstroAI Digital Multimeter- best true RMS multimeter under 100
The AstroAI brand is known for its reliability in terms of accuracy of readings and robust testing capacity. This is true for this AstroAI digital multimeter that, according to the manufacturer, can measure voltages up to 1,000 VDC and 750 VAC, or a CAT II safety standard rating. It’s a handy multimeter for testing solid-state HAM radios and automotive circuits aside from the usual residential and commercial applications.
Quick Summary
- Wide range of testing ranges
- Autoranging feature
- True root mean square
- Data hold
- Large LCD screen with backlight
1. Range of applications
We consider this AstroAI voltage tester as the best true RMS multimeter under 100 because of its wide range of applications. Professionals use it for troubleshooting electrical issues in the residential and commercial sectors as well as in testing variable drives, thanks to its true root mean square technology.
It’s used in the measurement of current, continuity, voltage, resistance, capacitance, and frequency as well as temperature. It even has a testing function for diodes transistors.
2. Easy to use
This AstroAI multimeter has numerous convenient features including data hold and auto power off, even a hanging magnet and kickstand. Its compact size makes it easy to operate with just one hand while its surprisingly robust built makes it great for medium-duty use. It even comes with an overload protection for all testing ranges, as well as a 3-year warranty.
- Relatively exact readings
- Large, easy-to-read display
- Above-average build quality
- Tests nearly all testing ranges
- Hanging magnet can pick up various things
10. Anbes Soldering Iron Kit 60W – best inexpensive multimeter
While its primary use is as a welding tool, this Anbes kit can also be used in measuring AC/DC voltage. You can then use it for checking household appliances and automotive issues, as well as soldering connections and the like. Don’t be put off by its small size as it’s a useful voltage tester for repairing a wide variety of electrically powered issues, too.
Quick Summary
- Ac/Dc voltage test
- Battery test for 9V and 1.5V batteries
- Resistance test
- Soldering kit
1. Great for soldering jobs
With its sturdy soldering iron tips, it’s a handy device for a wide range of electrical repair jobs. The soldering iron has an adjustable temperature feature and it can be quickly heated in as little as 30 seconds. It’s easy to use even for a beginner, as well as other easy-to-use features like LED indicator, on/off switch and insulating silica gel cover for protection against dropping and overheating.
2. Measures basic testing ranges
Keep in mind that the Anbes kit isn’t a high-end multimeter and, as such, it doesn’t come with sophisticated testing ranges. But it can measure AC/DC voltage, current and resistance, not to mention that it has continuity and transistor testing features.
- Complete soldering kit with 15 parts
- Quick heating and heat dissipation
- Wide variety of applications
- Small and lightweight
- Testing ranges are limited
Buyers’ Guide: Knowledge Is Essential in the Use of Multimeters
A Brief History of Multimeters
The galvanometer is considered as the first current detection device with a moving pointer. It’s then widely considered as the forerunner of the modern voltmeters and multimeters since it was also used in the measurement of voltage and resistance. It worked through a Wheatstone bridge as well as by comparisons between a reference resistance or voltage and an unknown quantity.
But it wasn’t a reliable device, especially in field settings. The D’Arsonval–Weston meter soon replaced the galvanometer, and it made the measurements of current and voltage easier and faster. This was because the readings or values can be read off directly from its scale.
But even the D’Arsonval–Weston meter wasn’t reliable. By the early 1920s, the first multimeter was introduced and its invention is widely attributed to Donald Macadie, a British Post Office engineer. Macadie’s instrument could measure volts, amps and ohms, and it was called the Avometer and was manufactured by the Automatic Coil Winder and Electrical Equipment Company.
Clamp Meter or Multimeter?
Distinctions must be made between a clamp meter and a multimeter first. For one thing, a clamp meter typically measures up to the nearest hundredth or tenth of a unit instead of the milliunits in a digital multimeter. For another thing, a digital multimeter essentially measures voltage with a certain current measuring ability while a clamp meter measures current with some voltage measuring capabilities.
In short, these are two distinct instruments with their pros and cons.
Which one is best for specific situations? Here are a few things to keep in mind.
- If you only need to measure voltage and continuity, a basic digital multimeter will suffice for the job. But if you’re doing power quality work, then you should have a high-end digital multimeter with sophisticated features.
- If you’re making basic current measurements, then a basic clamp meter is a good instrument to use. For example, you can use it in ensuring that the feeders’ three phases have the same current. For intermittent breaker trips, your ultimate choice is a logging clamp meter.
But for accurate measurements of motor inrush current, only an advanced clamp meter will do. This is also necessary for advanced signal processing, particularly in measuring the output of a variable frequency drive.
There are also cases when these two meters are necessary and, in fact, electricians and technicians carry a clamp meter and a digital multimeter for these instances. Electricians, nonetheless, use a clamp meter more while technicians performing more industrial troubleshooting use both a digital multimeter and a clamp meter.
The bottom line: It depends on what equipment you’re working on and the measurements you have to make. You may have to use either a digital multimeter or a clamp meter, perhaps both, so you may want to invest in both these meters.
What Is a True RMS Multimeter?
RMS stands for root mean squares and it’s useful in measuring alternating current and voltage. A true root mean square multimeter can be used for making accurate measurements for sinusoidal and non-sinusoidal AC waveforms.
Sinusoidal waves are considered as pure waves without distortions in their forms. These also have symmetrical transitions between their valleys and peaks.
Non-sinusoidal waves have irregular patterns and distorted forms. These include triangles, pulse trains, spikes and saw tooth patterns.
Use Multimeters for Doing Regular Electrical Inspections
Multimeters should be used with proper training as handling electricity and repairing electrical devices have its share of hazards. Here are a few important safety reminders when using multimeters for regular electrical inspections and repairs.
- Always learn the basics of testing safety for lines and outlets. Your best choice is a formal education, usually vocational in nature, as well as an apprenticeship.
- Hold both the meter probes in the same hand when testing on live outlets. This way, you won’t be at the receiving end of an electrical shock.
- Never let the probes’ metal points touch each other, not even brush against each other for a second, as it can result in a hazardous short circuit.
- Treat each of the three slots in an outlet with caution since each one can carry current. The shorter slot on the right is hot, the longer slot on the left is neutral and the rounded half circle is grounded.
- Always set the multimeter. The first step is usually setting it for voltage measurement, followed by selecting the AC function. By the way, the AC function is represented by a wavy line while the DC function has a dash and solid line.
- Connect the leads and measure the voltage.
Which Is The Best Multimeter For Automotive And DIY Electricians?
If you were to ask us, the best multimeter for automotive under 100 is the Innova 3340. It’s been tried and tested by automotive technicians for its reliability, quality and durability. It has automotive-specific features like RPM checks, tacho checks and alternator output, which are essential for determining engine issues.
Picking the Best Multimeter under 100 for You
All of the 10 multimeters were chosen for their overall quality, reliability and durability as well as for their attractive price. You can choose one or two of these multimeters and get the best value for your money.
But if push comes to shove, we think that the MM400 is the best multimeter under 100 because of its excellent durability and reliability for use in the field. Did we mention that it’s made in the USA? As such, it’s of higher quality than the China-made multimeters in the same price range.