The inductive clip-on extensometers, manufactured by Zwick®, is an extensomer that is straightly attached to the specimens that is created for an extended metal and plastic measurements. It is ideal for a broad variety of flexible stain and measuring of offset yield including in identifying the Young's modulus with an auto-manual attachment that are accessible. Furthermore, it has an advantage of a located measuring system near the specimens thus, the involvement of the measuring levers are limited, the preciseness and replicating function raise. In addition, it is fitted with two measuring systems for dual averaging measurement of outer fiber strain and an available version allowing signals from the two measuring systems to be imported separately.