Epsilon is dedicated to making high performance extensometers to meet a great variety of materials testing needs. We are committed to providing the highest quality and accuracy in extensometry. Over twenty-eight years of ......Epsilon is dedicated to making high performance extensometers to meet a great variety of materials testing needs. We are committed to providing the highest quality and accuracy in extensometry. Over twenty-eight years of experience have gone into the development of our products. Our innovative designs and factory direct sales result in world class quality at substantial savings.