Klein MM600 vs MM1000 Battle – Decoding the Differences


As an electrical engineer from Stanford University with over 7 years of experience using multimeters.

Now, you want something reliable, accurate, and packed with features when it comes to multimeters. It’s like choosing a sidekick for your superhero adventures in electronics. The MM600 and MM1000 are both from Klein Tools, a trusted name in the industry, but they have their own unique qualities that set them apart.

So buckle up, because we’re here to break down their similarities and differences, and help you decide which one suits your needs like a perfectly tailored glove.

Let’s dig in and discover the nitty-gritty details of the MM600 vs MM1000.

Klein MM600 Vs MM1000 – Which One to Consider?

The MM1000 offers temperature measurement capability, and a broader capacitance range, while the MM600 lacks these features. Additionally, the MM1000 is slightly heavier and comes at a higher price point.

Therefore, if you require temperature measurement and an extended capacitance range, the MM1000 is the recommended choice. However, if these features are not necessary for your needs and you prioritize a more cost-effective option, the MM600 is a reliable and cost-effective option for basic needs.

Klein MM600 Vs MM1000 – Specifications

Alright, let’s break it down! Here’s a handy-dandy specifications table comparing the Klein MM600 and the Klein MM1000 side by side:

FeatureKlein MM600Klein MM1000
Display4000-count LCD4000-count LCD
True RMSNoNo
Voltage Range0.1mV – 1000V0.1mV – 1000V
Current Range0.1μA – 10A0.1μA – 10A
Resistance Range0.1Ω – 40MΩ0.1Ω – 40MΩ
Capacitance Range1nF – 1000μF1nF – 4000μF
Frequency Range1Hz – 500 KHz1Hz – 1000 KHz
Duty CycleYesYes
Temperature Range0°F to 1000°F(-18° – 538°C)-58°F to 1832°F(-58° – 1000°C)
Diode TestYesYes
Continuity TestYesYes
Low Battery IndicationYesYes
Safety RatingsCAT IV 600VCAT IV 600V
Drop Protection6.6 ft (2m)6.6 ft (2m)

Klein MM600 – Quick Rundown


  • Measures up to 1000V AC/DC
  • Resistance measures 40MOhms
  • 10A AC/DC Current measures
  • CAT IV 600V / CAT III 1000V
  • Capacitance 1000μF
  • Low battery indicator
  • Measures temperature, capacitance, frequency, duty-cycle, Tests diodes and continuity.

The Klein MM600 is a reliable, versatile multimeter that packs a punch. While it may not have all the bells and whistles of its big brother, the MM1000, it still holds its own in many applications.

One notable difference is the voltage measurement range. The MM600 can handle up to 1000V, which is certainly impressive. However, it falls slightly short compared to the MM1000, which also covers AC/DC voltage up to 1000V. So, if you’re working with higher voltage systems, the MM1000 might be the better choice.

It can measure capacitance up to 1000µF, which is suitable for many tasks. Additionally, the MM600 lacks the temperature measurement feature that the MM1000 proudly boasts.

While the MM600 is slightly lighter than the MM1000, which weighs about 14.6 ounces (414g), weight might not be a significant factor for everyone, but for those who frequently carry their multimeter around, it can make a difference in terms of comfort and portability.

Despite these differences, the MM600 still shines in its own right. It features auto-ranging, which simplifies the process of selecting the appropriate measurement range, saving you time and effort. The CAT-IV rating ensures it can handle demanding electrical environments safely. With its compact size measuring 7″ x 3.5″ x 2.1″ (178 x 90 x 53mm), the MM600 is easy to handle and store.

Ultimately, if you primarily work with lower voltage systems and don’t require temperature measurement or an extended capacitance range, the MM600 provides a reliable and cost-effective solution.

In the next section, we’ll look closer at the Klein MM1000 and discover how it stands out from its sibling.

The package for the Klein MM600 includes:

  • Klein MM600 multimeter
  • Carrying pouch
  • Test leads
  • Alligator clips
  • Thermocouple with adapter
  • Batteries


  • Durable build
  • Precise voltage measurements
  • Compact size
  • Auto-ranging functionality
  • Integrated non-contact voltage detection
  • Affordable price


  • No true RMS functionality
  • Lacks temperature measurement
  • Limited capacitance range

Klein MM1000 – Quick Rundown


  • Auto ranging voltage measurement.
  • Backlit display.
  • Analog bar graph.
  • Measures AC/DC Voltage – 1000V.
  • Measures AC/DC Current – 10A.
  • IP20
  • 6.6 ft / 2 m drop protection
  • CAT IV safety rating for 600V

Let’s delve into the Klein MM1000 and briefly explain its features and capabilities.

The Klein MM1000 is a robust and advanced multimeter that caters to professional’s and enthusiasts’ needs. Packed with a wide range of functions, this multimeter offers some additional features compared to its counterpart, the MM600.

One notable feature that sets the MM1000 apart is its temperature measurement capability. This multimeter allows you to accurately measure temperature in both Fahrenheit and Celsius, making it a valuable tool for electricians, HVAC technicians, and anyone working with temperature-sensitive systems.

Another area where the MM1000 excels is its capacitance measurement range. With a range of 40nF to 4000µF, it offers a broader scope for measuring capacitors of different sizes.

Regarding voltage measurements, the MM1000 matches the MM600’s capability, allowing you to measure AC and DC voltage up to 1000V.

In terms of physical attributes, the MM1000 weighs slightly heavier than the MM600. While weight might not be a critical factor for everyone, it’s worth considering if you frequently carry your multimeter to different job sites.

The MM1000 shares the same compact form factor as the MM600, measuring 7″ x 3.5″ x 2.1″ (178 x 90 x 53mm). This size ensures it remains portable and easy to handle during your work.

Designed with safety in mind, the MM1000 boasts a CAT-IV safety rating. This rating provides peace of mind when working with mains power or other potentially hazardous electrical systems.

With its advanced features and robust construction, the Klein MM1000 is an excellent choice for professionals who require temperature measurement capabilities and an extended capacitance range.

Electricians, HVAC technicians, and those dealing with complex electrical systems will find this multimeter to be a valuable companion in their work.

The package for the Klein MM1000 includes:

  • Klein MM1000 multimeter
  • Carrying pouch
  • Test leads
  • Alligator clips
  • Thermocouple with adapter
  • Batteries


  • Temperature measurement
  • Extended capacitance range
  • Accurate AC and DC voltage measurements


  • Slightly heavier compared to MM600
  • No true RMS functionality
  • Higher price point

What Users Say About Klein MM600 vs MM1000

Let’s take a look at what users have to say about the Klein MM600 and MM1000 multimeters. Their firsthand experiences provide valuable insights into these tools. Here’s what some users had to say:

For the MM600, users have expressed positive feedback. They find it easy to use, with all the core functions they need. It even comes with useful accessories like a thermocouple, which adds to its versatility. Users have tested its accuracy and found it to be highly accurate. Additionally, the included carrying case is appreciated, although some users have mentioned that better organization for the accessories would be beneficial. Overall, users have been extremely satisfied with the MM600, feeling that they got their money’s worth in just the first week.

Moving on to the Klein MM1000, users have been impressed with its capabilities. Some users compare it to higher-priced Fluke meters, stating that it can do anything a $150 Fluke meter can do. The large screen with a backlit display is particularly praised, making it convenient for use in dark areas. Although the manual is described as “OK,” it provides essential information about test lead connections and test procedures, ensuring that users can operate the meter correctly and avoid any damage. 

However, a couple of concerns have been raised. Firstly, some users have found that the temperature probe does not reach the maximum temperature range mentioned in the manual. This discrepancy has led to doubts about its functionality. Secondly, automotive technicians have noted that the default voltage setting is AC, requiring them to switch to DC voltage each time the meter is turned on. While this may be a minor inconvenience, it’s worth mentioning for those in the automotive field. Despite these issues, users have bought the MM1000 based on its price and the reliability associated with Klein Tools, stating that they would purchase it again if needed.

These user experiences provide valuable insights into the strengths and weaknesses of both the Klein MM600 and MM1000, allowing potential buyers to make a more informed decision based on real-world feedback.

Final Verdict – MM600 vs MM1000

In my expert opinion, when comparing the Klein MM600 vs MM1000 multimeters, both models offer distinct advantages. 

The MM600 excels in its ease of use, accuracy, and inclusion of essential functions, making it a reliable choice for various tasks. 

However, the MM1000 stands out with its impressive capabilities, such as a large backlit screen and comparable performance to higher-priced multimeters on the market. While the MM1000 has a couple of minor drawbacks, namely the temperature measurement limitation and the default voltage setting, these factors may not outweigh its overall value for many users. 

Considering these factors, the final verdict is that both the MM600 and MM1000 have their merits. It ultimately depends on the specific needs and preferences of the user.

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