June 12, 2013 – Greenlee Communications has launched the 500XP Pair Tracing Probe with acAlert hazardous AC voltage detection. The 500XP is designed to help cable technicians trace wires when installing, servicing, and maintaining voice, data and video (VDV) services. The acAlert feature emits audible and visible alerts when brought near wires and cables that contain harmful levels of AC voltage. Updated electronics also reduce unit power consumption and increase battery life, says Greenlee.