This document describes and provides specifications for several high voltage test tools, including phasing units for checking and comparing the phase angle of circuits up to 15kV and 33kV. The PR11 unit is designed for use on earthed neutral systems up to 11kV, while the PR15D and PR33D units enable phase angle comparison on systems up to 15kV and 33kV respectively. Each unit is supplied with accessories like extension rods, leads, and carrying cases. Technical specifications are provided for indicators, maximum voltages, resolutions, currents, and physical dimensions.