Klein Tools MM400 is an auto-ranging multimeter that measures AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. Klein Tools Test and Measurement product line was exclusively designed from the ground up by electricians for electricians. Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with innovative, time-saving features. For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations. Includes test leads, thermocouple with adapter and batteries. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.
Measures up to 600V AC/DC voltage, 10A AC/DC current and 40 MΩ resistance
Measures temperature, capacitance, frequency, duty-cycle, and test diodes and continuity
CAT III 600V safety rating
Built to withstand a 3.3-foot (1 m) drop and withstand daily wear and tear on the job site
Low battery indicator and easily accessible battery compartment
For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
Includes test leads, thermocouple with adapter and batteries