Extensometers for materials testing

Fracture Mechanics Clip-On Gages

Model 3541

Fracture Mechanics Clip-On Gages

For fracture mechanics studies, these COD gages are in compliance with standardized test methods, such as ASTM E1820. +

Model 3548COD

High Temperature Furnace COD Gages (1200 °C or 1600 °C)

High temperature COD gages for use in split type materials testing furnaces with a slot for the ceramic rods. +

Model 7641

High Temperature Clip-On Gages (700 °C)

Designed for fracture mechanics testing in environmental chambers where the entire gage must be exposed to elevated temperatures. +

Download Product Guide

Axial and High Temperature

Shunt Calibration

Epsilon Shunt Calibration System

Knife Edge Options

Available for Epsilon Extensometers


If your unit is in need of service, calibration or repair, initiate the RMA process with us and we will be happy to assist.

Get Our Newsletter

Sign up for our newsletter to get the most up-to-date information on products and services.

Download Catalog

2017 Extensometer Catalog, Version 109 is now available! Not finding something you’re looking for? Ask us about a custom quote.