The DL579 is an TRMS HVAC/R Clamp Meter It has functions like AC/DC voltage, AC amps, AC/DC microamps, resistance, capacitance, frequency and duty cycle. Includes test leads, a pair of alligator clips,thermocouples, an ATTPC4, a zippered pouch, backed by a 1-Year warranty.

The ATTPC4 is designed for pipes with a diameter between 3/16 in. and 1 7/16 in. It features a 4.4 ft. cable and uses a mini-K-type connector plug.