Extech 380976-K Clamp-on AC Power Meter Kit measures Apparent Power (kVA), Reactive Power (kVAR), 1/3-Phase True Power (kW), Power Factor, Phase Angle with Lag/Lead indicator, Capacitance, Continuity, and Horsepower (HP). Can auto-detect AC/DC Voltage measurements. A valuable tool in HVAC flame rod tests, AC Power evaluation, Motor/Generator installation and repair, and Capturing min/max temperature or current values.