The 2533 Digital Power Meter is an outstanding solution to accurate power measurementof distorted waveforms with simple and fast flat-key controls. The unit provides a direct reading of voltage, current, power in each phase or total power, apparent power, reactive power, power factor, and more. The unit measures 3-phase 4-wire AC circuits. Simultaneous display of V, A, & W (or VA, var, PF) 0.1% accuracy Wide frequency range: DC, 10Hz to 20kHz Picture Not Available Manufacturer's Options Option GP0IB = GPIB Interface Option RS232C = RS-232C Interface Option FRQ = Frequency Measurement