The easy, all-in-one phasing voltmeter with numerous applications. The PD Series® All-Purpose Utility Meters are phasing voltmeters designed to replace numerous other meters that feature a single range and/or perform a single function. The PD Series® can be used for these applications: Capacitive Test Point Phasing Meter. Regulator Neutral Detector. Measure True RMS Voltages. Commercial/Industrial Meter. Phasing or Measuring Secondary Voltages, Replacing 600V Voltmeters. Conventional Phasing Voltmeter for Overhead and URD Systems from 0-50kV Phase to Phase.