... Compact, light 5. Auto-measure Eddy Current Metal Detector for pipe ,bar ,tubeEddysun is one of the well-known companies specializing ... technique and microprocessor technique,.The product is compact, light and portable, the built-in rechargeable lithium-battery can be used at ... the shake of facing bar , hollow, probe , sediment and pipe cold working.It can detect the metal material defect ,distinguish ...