Air Cooled High Temperature Extensometers Air Cooled High Temperature Extensometers Designed for measuring axial strain in high temperature tension, compression, and through-zero fatigue testing applications up to 1200°C (2200°F)Includes ceramic extension rods that extend into the furnace and minimize rod creep, thermal expansion errors, and conduction losses from the specimenContact force varies by model. Select from models with 100 g, 300 g, 400 g, or 780 g contact forcesAir cooling requiredAdditional models and rod geometries available upon request Learn More Contact Us First Name Last Name Email Mobile Message Send