Klein MM600 vs MM700 – Choosing the Best Fit


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

One thing that adds to the allure of Klein Tools is its solid US make. They have built a reputation for producing reliable and durable tools; the MM600 and MM700 are no exception. With their sturdy construction and dependable performance, you can trust these multimeters to withstand the rigors of everyday use.

This article reveals the thrilling tale of the Klein MM600 vs MM700. These two titans of the measurement realm are set to go head-to-head.

Let’s get this showdown started!

Klein MM600 vs MM700 – Which One to Consider?

Having had the chance to work with both the Klein MM600 and MM700, I must say the Klein MM700 stands out due to its additional features, including True RMS for more accurate AC readings, a Low Impedance (LoZ) mode, and an extended temperature measurement range up to 816°C, compared to the MM600’s limit of 538°C​​.

Even though the MM600 is suggested for low-voltage work and the MM700 for more varied uses, the MM600 is less expensive and offers more features, making it a better value for money.

If I had to pick one, I would choose the Klein MM700 for its added features and affordable price, making it a superior choice for both professional and hobbyist uses​​.

Klein MM600 vs MM700 – Specifications

FeatureKlein MM600Klein MM700
Display4000-count LCD4000-count LCD
True RMSNoYes
Low Impedance (Lo-Z) ModeNoYes
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 – 500 KHz
Duty CycleYesYes
Temperature Range0°F to 1000°F(-18° – 538°C)0°F to 1500°F(-18° – 816°C)
Diode TestYesYes
Continuity TestYesYes
Low Battery IndicationYesYes
Safety RatingsCAT IV 600VCAT IV 600V
Drop Protection6.6 ft (2m)6.6 ft (2m)
Ideal ForLight Industrial useHVAC technicians

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.

Ah, the Klein MM600 is a true gem in the world of multimeters! I must say, I’ve had the pleasure of getting up close and personal with this beauty, and it has left quite an impression. Constructed with a rugged body that can withstand drops of up to 2 meters, the MM600 lasts in residential, business, and light industrial environments.

Now, let’s talk features. While the MM600 covers all the standard options you’d expect from a digital multimeter, it truly shines in its versatility. 2 x AAA batteries power it and boasts a CAT IV 600V safety rating, ensuring your peace of mind while tinkering away. With its auto-ranging feature, you can kiss manual range selection goodbye and let the MM600 do the work for you.

But wait, there’s more! This multimeter doesn’t stop at volts and resistance. It’s a jack of all trades, capable of performing various tests like measuring capacitance, current (both AC and DC, up to 10A), temperature, frequency, and even testing diodes and duty cycle. It’s like having a Swiss Army knife for electrical measurements!

Now, it’s important to note that the MM600 may not be the top choice for professional electricians who have more specific requirements. But for DIY enthusiasts, hobbyists, and those in need of an all-purpose multimeter, this Klein offering is a pleasant surprise. Its user-friendly design and extensive capabilities make it a trustworthy companion in tackling a wide range of electrical tasks.

If you want to dig deeper into the Klein MM600, I invite you to check out my own experience and findings in this review post [insert link if desired]. Klein Tools proudly claims that the MM600 is “by electricians, for electricians,” and I must say, it lives up to that promise. Even with its affordable price point, this multimeter doesn’t skimp on innovative and time-saving features that will surely impress.

The package for the Klein MM600 includes:

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


  • Durable Construction
  • Accurate Measurements
  • User-friendly Design


  • Slow performance
  • Not True RMS (may not be essential for all applications)

Klein MM700 – Quick Rundown


  • Measures up to 1000V AC/DC
  • Resistance measures 40MOhms
  • 10A AC/DC Current measures
  • Capacitance 4000μF
  • Automatic ranging TRMS
  • CAT IV 600V Safety Rating
  • Drop-resistant and durable
  • Low Impedance (LoZ) mode

Now let’s turn our attention to the Klein MM700, the low-impedance, true root mean square (TRMS) multimeter ready to rock your electrical world. This chunky, funky-looking tool from Klein Tools was designed to cater to both professionals and amateurs alike, striking a balance between performance and affordability.

Priced slightly higher than its sibling, the MM600, the MM700 offers a compelling package of features that make it stand out in the crowd. Whether you’re working on solar units or tackling CAT-IV, three-phase power circuits, this multimeter has got you covered.

Now, let’s dive into the features. The MM700 doesn’t disappoint in this department either. Packed with most of the essential functions you’d expect from a multimeter, such as amperage, capacitance, and temperature measurements, it covers the basics and then some. But what sets it apart are the added bonuses like the low impedance mode, which comes in handy when dealing with ghost voltages or for more accurate readings.

Speaking of bonuses, the pricing of the Klein MM700 is surprisingly attractive, considering the impressive range of features and functions it offers. You’ll get access to the test ranges typically found in standard multimeters, including voltage and amperage measurements. Plus, it throws in some advanced functionalities like MAX/MIN recording to track extreme values and low impedance to tackle those pesky ghost voltages.

After all, the Klein MM700 is a heavyweight contender in the multimeter arena, catering to both professionals and amateurs. I’ve personally tested its capabilities and put it through its paces, and I can confidently say that it lives up to the expectations of a quality multimeter.

The package for the Klein MM700 includes:

  • Klein MM700 multimeter
  • Carrying pouch
  • Test leads
  • Alligator clips
  • Thermocouple with adapter 
  • Batteries


  • Extremely durable
  • Very accurate
  • True RMS
  • LED back-lit screen
  • Vast testing modes


  • Slightly higher price

What Users Say About Klein MM600 and MM700

Customer reviews play a vital role in helping us make informed decisions, so let’s dive into what other users say about the Klein MM600 and MM700 multimeters.

After extensive research and reading numerous reviews, I discovered that both products had received mixed feedback.

For the MM600, many users expressed their satisfaction and deemed it the perfect fit for their needs. It lived up to their expectations and proved an excellent choice, especially for those seeking a multimeter under $100. Most feedback leaned toward the positive side, with about 95 percent of users reporting their satisfaction with their purchase. 

However, a few users found it less user-friendly compared to some other options and occasional comparisons were made to Fluke multimeters.

Turning our attention to the MM700, users found it to be a fantastic value for the money. Its True RMS capability and adequately-sized screen received accolades, especially from those with aging eyes. Including features like relative measurements and min/max readings was a notable improvement over older models like the Fluke 77, which many users had relied on for years.

However, a few minor concerns were raised. Some users found the leads too short and wished for an additional foot in length.

Additionally, users felt that the carry case could be slightly larger to accommodate all the included accessories, especially when utilizing the magnetic holder for the meter.

Taking all the user feedback into account, it’s evident that the Klein MM600 and MM700 have garnered a loyal following. The build quality, included accessories, and overall performance received accolades from users, showcasing the reliability and value these Klein multimeters bring.

Final Verdict – MM600 or MM700?

Now comes the moment of truth: deciding between the Klein MM600 and MM700. Based on my experience and opinion, if you’re a DIY enthusiast or a hobbyist looking for a reliable all-purpose multimeter, the Klein MM600 should be your top choice.

However, if you require additional features like low impedance mode and TRMS measurement and are willing to invest a bit more, the Klein MM700 is the way to go.

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