Productive Technologies Pvt. Ltd. Offers Extensometer to Measure Length of an Object. Productive Technologies Pvt. Ltd. Is an ISO 9001:2000 registered organization. Extensometers are available to cover full scale elongations from 0.01 to 20 inches [0.25 mm to 0.5 m], in gage lengths from 0.25 to 20 inches [6 mm to 500 mm]. They cover temperatures from -265 Degree C to +1600 Degree C, and are available with or without electronics. Extensometers are included for almost all engineering materials, including: elastomers, plastics, composites, metals, ceramics, geometrical [e.G. Rock, concrete, and asphalt], and biomaterials including Bone. There are models for tiny and delicate samples, including relatively fine wire, up to massive metal samples and large rock cores. The huge variety of models covers nearly every type of test as well, including: tensile, compression, bend, fracture mechanics, and cyclic strain controlled tests like low cycle fatigue. Most extensometers are capable of relatively high frequency operation. Each extensometer carries a full year warranty.