The dual display CL450 Clamp Meter is a "game changer" for the HVAC professional. This True RMS CAT IV 600V meter offers DC microamps, differential temperature, digital temperature calibration, inrush current and many other functions for HVAC applications. Test leads measure AC/DC voltage, DC micro amp, resistance, continuity, frequency, duty-cycle, capacitance, and diodes. Dedicated mode for capturing DC micro amp and inrush current. Low-Pass filter and Low impedance (LoZ) mode for identifying and eliminating ghost or stray voltages. Dual backlit 6000 LCD display for clear visibility in environments with low ambient lighting. Rugged design with a 6.6-foot (2 m) drop protection and a CAT IV 600V Safety Rating. Includes carrying case, instruction manual, straight input test leads, two K-type thermocouples, and 3 x AAA batteries. Can be used with Magnetic Hanger Cat. No. 69417 (sold separately). Use with K-Type Temperature Pipe Clamp Cat. No. 69140, and K-Type Temperature Probe Cat. No. 69144 (sold separately). 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.