Fluke introduces the 320 Series True-rms Clamp Meters, a complete line of tools engineered to produce noise-free, reliable measurements in the toughest environments. Designed to be long-lasting and easy to use, the Fluke 323, 324 and 325 clamps meters are fit for rugged, all-purpose use in residential, commercial, HVAC/R and light industrial electrical applications. Some of the main features are: CAT III 600 V/CAT IV 300 V safety ratings, true-rms ac voltage and current for accurate measurement of non-linear signals, and DC current, frequency and resistance up to 40 kilohms for motor testing. The 324 and 325 models offer a backlighted display for easy viewing in any setting, contact temperature readings from 10 to 400 degrees C (14 to 752 degrees F) and capacitance measurements from 100 to 1000 microfarad. The 325 model also offers dc current measurements up to 400 A, frequency measurements from 5 to 500 Hz, and Min/Max function.