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The extensometer MFI is suitable for testing deformation of samples with a large gauge length (Lo up to 1000 mm), for example wire cables, chains, construction steel rods, belts etc.
The instrument is manufactured with three standard gauge lengths of 20, 40 and 100 mm. It can be operated in horizontal and vertical test machines. Despite its sturdy construction and the large Lo variation, it is easy to operate due to its low weight.