January 24, 2014 – HD Electric says its DVI-100 and DVI-500 digital voltage indicators are designed to be used on both transmission and distribution systems in overhead and underground applications up to 500kV.

An LED display shows voltage with a 2 or 3-digit readout. In addition, an audible alarm alerts the user to the presence of voltage above 100vAC. Models are also available with an option to measure elbow test points.