The PD800W Meter Probe allows the user to take Real time Phase Angle readings along with AC nominal voltage readings. A PD800W Meter Probe works in conjunction with the Recieve Unit to verify phase identification along with the actual phase angle data. This is all done without any calculations or data transfer from the field to a base computer. The Meter Probe and Recieve Unit can operate at 100 feet of seperation and up to 300 feet line of sight seperation. In the event that this distance would need to be greater, the Recieve Unit can be unplugged from the charging cable and taken into the field while operating on it's rechargable batteries for up to 8 hours at a time.