Features
Klein Tools CL440 Clamp Meter is an advanced HVAC clamp meter with automatically ranging true root mean square (TRMS) for maximum accuracy. The meter measures AC current, inrush current, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, temperature, diodes, and more. This Digital Clamp Meter comes with right-angle input test leads, push-on alligator clips, K-Type thermocouple, storage pouch, instructional manual, and 3 x AAA batteries.

Digital clamp measures 600.0 A AC current and inrush current
Test leads measure 750V AC/600V DC voltage, DC micro amp, resistance, continuity, frequency, duty-cycle, capacitance, and diode tests
K-Type thermocouple port for measuring temperature from -328 to 2462 Degrees Fahrenheit (-200 to 1400 Degrees Celsius)
Detect AC current with non-contact voltage tester integrated into the clamp jaw
Backlit LCD with dual V + A function allows simultaneous viewing of voltage and current measurements
Dedicated mode for capturing DC micro amp and inrush current
CAT IV 600V, CAT III 750V, Class 2, Double insulation safety rating
Includes right-angle input test leads, push-on alligator clips, K-type thermocouple, storage pouch, instruction manual, and 3 x AAA batteries
Can be used with Magnetic Hanger Cat. No. 69417 (sold separately) for hands free operation
Klein Tools CL440 Clamp Meter is an advanced HVAC clamp meter with automatically ranging true root mean square (TRMS) for maximum accuracy. The meter measures AC current, inrush current, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, temperature, diodes, and more.

Klein Tools is the result of one of those “happy accidents” that turn out to be revolutionary. Klein Tools famously got their start in 1857 when a linesman came to founder Matthias Klein to repair his broken pliers. Klein replaced the broken half and when the old half of the tool broke too, Klein forged a replacement for that, thus making the first Klein Linesman pliers. Since these humble beginnings, Klein Tools has grown and become one of the largest American made toolmakers and they’re a brand used by tradesmen, linesman and electricians all across America.