About the Klein HVAC Clamp Meter, 600V AC, 750V DC, 600 Amp, Temperature Range -328° to 2462°F (-200° to 1350°C) - CL440
The Klein CL440 HVAC clamp meter is a powerhouse tool tailored for HVAC professionals who need precision, versatility, and safety in one rugged device. Engineered with true RMS auto-ranging technology, this meter provides highly accurate measurements, whether you're dealing with standard AC currents or variable-speed systems. This clamp measures up to 600A AC current, including inrush current, while the test leads offer a wide range of diagnostic capabilities—750V AC, 600V DC, resistance, DC microamps, continuity, frequency, duty cycle, capacitance, and diode testing. An integrated non-contact voltage tester in the clamp jaw adds another layer of convenience for quick, safe AC detection.
One of the standout features of the CL440 is its temperature measurement range, capable of reading extreme values from -328° to 2462°F (-200° to 1350°C) using the included K-Type thermocouple—ideal for HVAC systems that operate under intense thermal conditions. The backlit LCD with dual V + A display allows you to view voltage and current readings simultaneously, saving time during diagnostics. A dedicated DC microamp and inrush current mode ensure you’re capturing the most precise data when working with flame sensors or motor startups.
Packed with essentials like right-angle input test leads, push-on alligator clips, a K-type thermocouple, and a durable storage pouch, this kit is job-ready straight out of the box. With a CAT IV 600V / CAT III 750V safety rating, double insulation, and optional magnetic hanger compatibility, this clamp meter delivers maximum safety and hands-free functionality—making it the ideal clamp meter for demanding HVAC environments.
Klein Tools is the brand professionals trust, engineered for performance and built to endure. From heavy-duty jobsite tasks to intricate electrical work, Klein’s high-precision tools deliver the durability and accuracy you need. Explore the full selection at PlumbersStock and get equipped with electrical tools and specialty hand tools that work as hard as you do.
