Klein Tools MM400 Multimeter Review

Welcome to our comprehensive review of the Klein Tools MM400 Multimeter. In this article, we will provide an in-depth analysis of this versatile and reliable multimeter. We will also highlight the key insights and pros and cons of the product.

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Klein Tools

Klein Tools MM400 Multimeter

A versatile and reliable multimeter with a range of functions, ideal for professionals and DIYers.

The Klein Tools MM400 Multimeter is an auto-ranging multimeter designed for professionals and DIYers. This multimeter can measure AC/DC voltage, AC/DC current, resistance, temperature, capacitance, frequency, duty-cycle, and can test diodes and continuity. It features a CAT III 600V safety rating, making it suitable for use in basic and controlled electromagnetic environments.

The MM400 is built to withstand a 3.3-foot drop and daily wear and tear on the job site, ensuring its durability. It comes with a low battery indicator, allowing users to easily replace the batteries when needed. The package includes test leads, a thermocouple with adapter, batteries, and a user manual.

With its diverse functions and reliable performance, the Klein Tools MM400 Multimeter is an essential tool for electricians and DIY enthusiasts alike.

Our Analysis and Key Insights

Our Analysis & Key Insights

Good value

The Klein Tools MM400 Multimeter offers good value for the price. It provides accurate measurements and a range of functions at a competitive price point.

Great features and price

The MM400 stands out for its great features and affordable price. It offers a wide range of functions that surpasses many other multimeters in its price range.

Display issue

One minor issue with the MM400 is the display visibility at certain angles. It is best viewed head-on for optimal visibility, and there are positions where the display can be faded or almost disappear.

Slow Auto scale mode

When in Auto scale mode, the MM400 can take up to 5 seconds for the reading to finally resolve. This can be an annoyance for users troubleshooting something quickly.

Good accuracy

While accuracy has not been compared to other meters, the published specs of the MM400 are similar to more expensive meters, indicating good accuracy.

REASONS TO BUY
  • Accurate measurements
  • Multiple functions
  • Durable construction
  • Suitable for basic and controlled electromagnetic environments
REASONS TO AVOID
  • Display visibility at certain angles
  • Slow reading in Auto scale mode
  • Continuity beep can be annoying
  • Blows fuses when measuring 12VDC
  • Interface design could be improved
  • Short probe ends

Frequently Asked Questions

What does the Klein Tools MM400 Multimeter measure?

The MM400 multimeter measures AC/DC voltage, AC/DC current, resistance, temperature, capacitance, frequency, duty-cycle, and can test diodes and continuity.

Is the Klein Tools MM400 Multimeter durable?

Yes, the MM400 is built to withstand a 3.3-foot drop and daily wear and tear on the job site.

What safety rating does the Klein Tools MM400 Multimeter have?

The MM400 has a CAT III 600V safety rating.

Does the Klein Tools MM400 Multimeter have a low battery indicator?

Yes, the MM400 has a low battery indicator to alert users when the batteries need to be replaced.

What is included in the package of the Klein Tools MM400 Multimeter?

The MM400 package includes test leads, a thermocouple with adapter, batteries, and a user manual.

In conclusion, the Klein Tools MM400 Multimeter is a top-quality electrical tester that offers accurate measurements, durability, and a range of functions. Whether you are a professional electrician or a DIY enthusiast, this multimeter is well-suited for your needs. Despite a few minor drawbacks, such as the display visibility at certain angles and the slow reading in Auto scale mode, the MM400 remains a popular choice among users. We highly recommend it for anyone in need of a reliable and versatile multimeter.