HD Electric Co.'s DVI-500 Digital Voltage Indicators are a new addition to the Digital Voltage Indicator line. The DVI is a direct-contact, compact instrument designed to read the voltage on a conductor from 0.1kV up to 500kV line-to-ground and display the voltage on a large 3-digit ultra-bright LED display. The display is easy to read on the end of a long hotstick and can be used on overhead lines or in underground applications.

The DVI-500T can also measure elbow test points. An audible indication is given when voltage is detected and allows the user to distinguish between nominal and induced voltages.