... The EEC-22+ Full-digital Eddy Current Instrument is The tester provides maximum stability, reliability and sensitivity.The EEC-22+'s ... interface: Supports Epson series printerProbe types: Differential, absolute, reflection, I.D, O.D.Display screen size:15" diagonal, magnetic deflectionSweep ... requirements: AC 220V EEC-22+ Intelligent full-digital eddy current tester for metal tubes(Mono-channel)