Model 3542 Axial Extensometer with 2" gauge length and +50/10% measuring range. This Extensometers is designed for testing a wide range of materials, including metals, plastics, composites and ceramics  and will work in tension and compression. The dual flexure design makes them very rugged and insensitive to vibrations, which permits higher frequency operation.

Features: Full bridge, 350 ohm strain gauged for compatibility with nearly any test system. High and low temperature options extend operation from as low as -265ºC(-450F) 70 +175ºC (350F) Replaceable arms and spacers for ease of repair. This also allows changing the gauge length for different test requirements.

Meets ASTM E-83 class B-1 and ISO 9513 class 0.5 requirements for accuracy. Measuring range: 0.075 inches or 2 mm (specify).