Digital Auto Ranging Multimeter for General Users

For over 160 years, Klein Tools has been manufacturing premium-quality, professional-grade hand tools designed to deliver the performance, durability, and precision needed to get the job done right. Engineered by electricians for electricians, the Klein Tools Test and Measurement product line is the result of years of field research and extensive input from professionals across America. This has inspired the development of meters and electrical testers packed with innovative, time-saving features.

The Klein Tools MM400 Multimeter is an auto-ranging device that measures AC/DC voltage, AC/DC current, and resistance. It also has the capability to measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. Designed to withstand the demands of daily use on the job site, the MM400 can survive a 3.3-foot (1 m) drop and endure the wear and tear encountered in residential, business, and light-industrial environments.

Safety is a top priority, and the MM400 carries a CAT III 600V safety rating, ensuring reliable performance in basic and controlled electromagnetic environments. The multimeter features a low battery indicator and an easily accessible battery compartment, allowing users to quickly and conveniently maintain the device's power source.

Klein Tools' commitment to quality craftsmanship and attention to detail is evident in every product they create. The company's family of engineers, workers, and craftsmen continue to draw upon six generations of expertise, using only the highest quality materials and superior workmanship. As an American, family-owned and family-run business, Klein Tools is dedicated to being a reliable and trusted partner for professionals who depend on their tools day in and day out.

The MM400 Multimeter is a testament to Klein Tools' unwavering pursuit of excellence. With its extensive measurement capabilities, rugged construction, and unwavering commitment to safety, this instrument is designed to meet the demanding needs of the modern electrician. Whether tackling basic or complex electrical tasks, the Klein Tools MM400 Multimeter is a reliable and indispensable tool that professionals can count on to get the job done right.

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