Klein Tools Professional Testing Kit combines Cat. No. MM720 TRMS multimeter and Cat. No. CL810 TRMS clamp meter with magnetic hanger for complete electrical measurement solutions. Features auto-ranging technology and high-visibility displays. Multimeter measures voltage up to 1000V, plus resistance, temperature, and capacitance. Clamp meter includes LoZ mode, clamp meter NCVT detection, and a worklight for enhanced functionality. 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.