The EMAT Adaptor GS1100 provides a means for current NDT users to benefit from the advantages of non-contact EMAT transducers for pulse-echo flaw detection and thickness guaging, without the large capital outlay of replacing existing piezoelectric based flaw inspection systems and thickness/corrosion monitors. It acts as a bridge between an EMAT probe and a detection system designed for piezoelectric transducers. Designed to work with modern NDT inspection systems, the Adaptor, when used with a suitable EMAT (provided as part of the package), has sufficient signal strength and resolving power to work on both oxide coated and oxide free ferritic steel surfaces, providing a major advantage for plant inspection over alternative systems. In certain circumstances measurement of austenitic stainless steel is also possible.