AEMC 3945-B PowerPad 3-Phase Power Quality Analyzer with 1200A Current Probe<br />Check out here on amazon http://www.amazon.com/gp/product/B008S0EFNC?tag=sukses2015-20<br /><br />Single two- or three-phase digital multimeter measures voltage current and frequency for use in energy metering measuring transformer K-factor and troubleshooting electrical problems in power systems <br />True RMS meter provides accurate readings when measuring linear or nonlinear loads where the current or voltage has a sinusoidal or nonsinusoidal waveform <br />Measurements include kW kVAR PF DPF kWh KVARh kVAh K-factor and flicker <br />Data logging transient capture and event capture functions an optical-coupled RS-232 port and DataView software pilot the meter and provide comprehensive report <br />Meets IEC safety standard 61010 and is certified for Category III installations up to 600V Category IV installations up to 600V and Pollution Degree 2 for indoor use