www.safetyandhealthmagazine.com/articles/voltage-detector-3

Voltage detector

January 1, 2011
The PRX-500 Proximity Voltage Detector has nine selectable voltage ranges from 120 V to 500 kV, and features an easy-to-use electronic touch pad with large buttons. It provides an audible and visual indication of voltage detected, from elbow test points to the highest transmission voltages. The rechargeable internal battery can be charged quickly from a truck or wall outlet.
HD Electric Co.