The XiTRON XT3561 Three-phase Power Quality Analyzer is an ideal instrument in testing and analyzing device for power quality applications. It provides multiple modes for analyzing harmonics, voltage, current, frequency, 3-phase unbalance, power and energy, data recording, swells/dips, flicker, surge and more. The XT3561 Three-phase Power Quality Analyzer helps locate, predict, prevent and troubleshoot power quality problems in power distribution systems. The XT3561 is not only a problem solver but also a money saving tool. In summary, XT3561 is an essential, ease-to-use portable power quality analyzer for those who maintain or troubleshoot Single-phase or Three-phase power. USB interface and the XiTRON XView Utility Software are provided as standard accessories.