Digital Multimeter for Professional Use

The Klein Tools MM400 Multimeter is an auto-ranging multimeter designed to cater to the needs of electricians. This professional-grade instrument boasts a comprehensive range of measurement capabilities, including the ability to measure AC/DC voltage, AC/DC current, and resistance. Additionally, it can measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity.

The development of the Klein Tools Test and Measurement product line was driven by the extensive input and field research gathered from electricians across America. This collaborative effort has resulted in the creation of meters and electrical testers that are packed with innovative, time-saving features. For over 160 years, Klein Tools has been manufacturing premium-quality, professional-grade hand tools that deliver the performance, durability, and precision required to tackle any job successfully.

As a family-owned and family-run American company, Klein Tools is committed to ensuring that its customers can count on the company's continued presence and support. The company's engineers, workers, and craftsmen pour their expertise, acquired over six generations, into every tool they create, using only the highest quality materials and superior workmanship.

The Klein Tools MM400 Multimeter boasts a wide range of technical specifications, including the ability to measure up to 600V AC/DC voltage, 10A AC/DC current, and 40 MOhms resistance. It also features a CAT III 600V safety rating, making it suitable for use in basic and controlled electromagnetic environments, such as residential, business, and light-industrial locations.

The multimeter is built to withstand the demands of daily use on the job site, with a sturdy design that can withstand a 3.3-foot (1 m) drop and daily wear and tear. Additionally, it includes a low battery indicator and an easily accessible battery compartment, ensuring seamless operation.

Accompanying the multimeter are test leads, a thermocouple with an adapter, batteries, and a user manual, providing users with a comprehensive kit to tackle a wide range of electrical testing and measurement tasks.

In summary, the Klein Tools MM400 Multimeter is a robust, feature-rich instrument that has been meticulously designed and engineered to meet the demands of professional electricians. With its extensive measurement capabilities, durable construction, and commitment to quality, the MM400 Multimeter is a reliable and indispensable tool for any electrician or technician.

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