Sewerin Glass-fiber Probe Rod for locating PVC and Plastic Pipe, 100m (328') on ReelDetection of non metal pipes Non metal pipes can be detected if the glass fibre rod can be inserted into the pipe in question. The rod is equipped with a copper strand so that it can be energized by a pipeline locating system such as FERROPHON or UtiliTrac using a generator and then detected using a receiver. In this way, the path of the pipe in question can be determined quickly and exactly to the last meter. 100m Spool of glass fiber rod with copper