Klein Tools MM1000 Multimeter Review

Editor Rating: 4.5/5


Klein Tools MM1000 Multimeter

Reviewed by: Timothy Henderson

Last modified: Mar 24, 2022 @ 5:25 am

  • Design
  • Functionality
  • Price

MM1000 Review Summary:

If you’re looking for a good multimeter, you’re in the right place. Many people have a problem when it comes to choosing the right tool for their needs. Some look for additional features, while others appreciate the durability, sturdiness, and other physical factors. If you’re not sure which multimeter you want and need, don’t despair. We’re here to help you make the right decision by offering a thorough insight into the features and abilities of various multimeters that are available on the market at the moment.

There are numerous brands involved in the production of modern digital multimeters, but just a few of them are worth checking out. If you don’t like the features of this particular unit, feel free to check out our other full reviews, you might find something that suits your needs.

Klein Tools MM1000 – The Basics

This particular product is quite versatile and useful. The most important fact about it is that it can be used by both professionals and beginners. So, whether you’re dealing with electricity on a daily basis, or you simply want to have a unit to check the voltages in your household, this one will certainly fulfill your expectations.

Many features such as the auto range, analog bar graph, and more, come in handy when you’re dealing with sensitive electronics. The design is pretty neat, and the manufacturer even includes a rubber casing which has ribs on either side of the unit to ensure a better grip. It also has a retractable lever on the back of the casing for people who like holding their tool in a vertical position. It measures AC/DC voltage, duty cycle, capacitance, resistance, and frequency. As you can see, there are more than enough settings for you to tackle any project you can imagine. And, although an impressive machine, you may find the Klein Tools MM600 HVAC Multimeter offers more flexibility and durability.

The Features

Auto ranging

The advantages of auto ranging are great. First of all, it saves you the hassle of having to know which range you need to pre-set before testing a certain object. It also saves a lot of time and effort, because you don’t have to fine-tune the range, the product does that for you. However, the major disadvantage of this feature is the lack of precision and speed of delivery. The manual ranging offers more precise data in a shorter period. Don’t worry, though; the difference in precision is minor and negligible. However, if this is a deal-breaker, I suggest checking out this model’s impressive sibling, the Klein Tools MM600 HVAC Multimeter. This version has an upgraded auto-ranging feature that’s significantly more rapid than the MM1000s system.

The thermocouple

This feature is pretty rare when it comes to affordable multimeters, and many people get impressed by it. The concept is quite simple. You’ll get a temperature probe which can be plugged into the unit. Once you set up the sensor, all you have to do is put it on a surface that you want to analyze and read the temperature.

Data hold function

There is a “hold” button located below the display, but a lot of people simply don’t know how to use it. If you don’t have a piece of paper to write down the data, or you’re struggling to memorize it, simply hold the “hold” button for a few seconds, and the data will stay on the screen until you overwrite it with new readings. It saves a lot of time and effort, especially if you’re in a hurry or have a ton of other readings to analyze.

High resistance levels

This multimeter can measure high resistance levels that can reach up to 40 Ohm. By using this feature, you can measure and check the efficacy of the resistor. You can also check whether the resistor is functioning properly or not. However, remember to set you unit to zero before you start measuring resistance or else you’ll get false data.

The backlight, display, and casing

You may be wondering why this feature is so important when it’s just a simple light, but the reasons are clear. For example, a serious professional must have a multimeter with a backlit display because there are numerous occasions when you’re conducting an analysis in dark environments. One more important thing about the display is that it can be read from various angles. In other words, you will be able to distinguish the symbols and numbers even if you tilt the multimeter for 45 degrees, which is pretty rare, especially with LCD screens.

The rubber sleeve is simple yet incredibly effective. It does not only offer protection from hits, but it also hides the battery and fuse compartment. However, the close cousin of this machine, the Klein Tools MM600, has an improved shockproof design — able to withstand drops up to 6.6-feet. If this reassuring feature ticks your boxes, I’d suggest checking it out instead. If you want to change the batteries or fuses, take off the rubber protection, unscrew the back door, and you’ll find two AAA batteries and two fuses behind the lid.

Auto shut off

This option is pretty self-explanatory, and it comes with most digital multimeters. As you can assume, the multimeter shuts itself off after 15 minutes of inactivity. The primary goal of this option is to save battery. You might be thinking it’s not a big deal, but if you take a moment and calculate how many times you have bought new batteries just because you forgot to turn off the instrument after use, you’ll see that this feature effectively saves money.

Who Can Use The MM1000 Multimeter?

The best thing about this unit is that it can be used by anyone who knows how to operate a tool like this. Because of its numerous features, it’s quite suitable for professionals. On the other hand, it’s also great for beginners because it’s straightforward and easy to use. Its versatility is its greatest strength.

So, if you’re looking for an all-around product for an affordable price, the Klein Tools MM1000 might be the one.

Klein tools mm1000 use



Easy to use




Precise and accurate


Durable and sturdy


Large display with big numbers



The rubber protection can be hard to take off


The alligator clamps for the test leads sometimes aren’t included


Inconsistent in some situations

Things We Didn’t Like

Despite its greatness, this unit doesn’t come without a few things that could be improved in the future. For example, some people noticed that it’s quite hard to remove the rubber protection when you want to change the batteries or blown fuses. If you experience this problem, try doing it in a warmer environment because warm temperatures loosen up the rubber.

Other people noticed that it isn’t made in the United States, but rather imported from the Asian market. However, this isn’t a downside at all; it’s just a matter of personal preference. The model we’ve tested performed exceptionally well, despite the fact that it’s made in Korea.

Last, but not least, a lot of people didn’t get the alligator clamps for the test leads. However, the manufacturer states that they are included. The model we had the chance to test out came with alligator clamps included; however, we can’t guarantee that you’ll get them as well. If you don’t get the alligator clamps delivered, feel free to return the shipment and demand a new product.

Klein tools mm-1000

Klein Tools MM1000 FAQs

What is the max resistance range of the MM1000?

The max resistance range is 40M.

Can the Klein MM1000 measure microfarads?

Yes, it can. In fact, it can measure down to Nanofarads.

Is the Klein MM1000 a complicated multimeter?

Not at all. As long as you follow the basic rules and user manual you shouldn’t have an issue whatsoever. Remember to take safety measures when dealing with electricity because we all know the slightest error can have fatal consequences.

Can I connect the MM1000 to my PC and analyze the data?

It is not possible to connect this particular unit to a PC.

Does the MM1000 unit come with test leads?

Yes, test leads and a thermocouple are included with the Klein Tools MM1000.

What Users Say About The Klein Tools MM1000?

The users seem satisfied with the MM1000. It does have a few flaws, but it’s still very useful and effective. The thing people love the most about the MM1000 is the price. Instead of spending hundreds of dollars for various separate instruments, you can get all of that packed into a small unit for under a hundred bucks. If you think about it, you’ll get a temperature probe, current meter, voltage meter, capacitance checking tool, and more, in a single unit.

The MM1000 has a pretty good 4.5-star rating on Amazon, which shows it’s worth checking out. It also holds the 26th place on the list of best sellers from the “Multimeters and Analyzers” category. Over 85 people have reviewed this product on Amazon, and 90% of them strongly recommend it.

For example, a user by the name of “cag” said –

“Great DMM for the price. I use it for hobby electronics and works great. It does power up in AC mode but not a real problem, just have to remember to switch to DC.”


If you’re looking for a quality multimeter, don’t hesitate to check the Klein MM1000. It has everything you need whether you’re a professional or a beginner. Make sure to think about the safety and take precautionary measures when dealing with electricity.

It’s compact, lightweight, and easy to use. It’s also affordable and suitable for any DIY enthusiast’s budget. If you decide to purchase this particular unit, it won’t be a mistake. However, I’d suggest before you make a decision you check out the Klein Tools MM600 — which offers a greater number of features and more versatility at a comparable price point.

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