At Epsilon, we specialize in strain measurement for materials testing. For three decades we have dedicated our efforts to developing top-quality extensometers and calibrators. Located in scenic Jackson, Wyoming, our state-of-the-art facility is where we design and manufacture extensometers for testing all kinds of materials: metals, composites, plastics, ceramics, elastomers, geomaterials, and biomaterials. From fine wire to large rebar, there are models for tension, compression, bend, shear, torsion, bi-axial, and fracture mechanics testing. Most of our extensometers are capable of cyclic fatigue testing over a range of frequencies and operating in strain control.