1000A Clamp measures single f (phase) or 3f power to 600kW. Display True Power, Apparent Power, Power Factor, True RMS Voltage and Current, Resistance and Frequency. Dual display of kW and PF, kVA and PF, V and A, A and Hz or V and Hz. Clamp jaws open to 1.8 in. (46mm). Built-in recorder datalogs up to 4000 readings or download to a PC. 25 point data memory viewable on the LCD display. Data hold and auto power off. Full function display on large 4-digit LCD with fast 40 seg. bargraph, Peak Hold, and MIN/MAX. Complete with Clamp-on meter, 9V battery, alligator clips, test leads, Datalogger/RS-232 module, PC software with cable, and case.