Axial Extensometers with <25 mm (<1 in.) Gage Length

These axial extensometers are ideal for testing small specimens in test applications that require a small measurement footprint (<25 mm (<1 in) gage length).

Key benefits

  • The measuring range is equally divided into a tensile and compressive range
  • Includes knife edges and manual attachment fixtures for round specimens
  • Select the -21 or -31 model for cryogenic testing down to -269°C (-452°F)
  • Models include quick attachment kits for round and flat specimens where indicated.
  • Additional quick attachment kits are available upon request
  • Exceeds requirements for calibration according to ASTM E83 Class B1 and ISO 9513 Class 0.5 standards


  • Fatigue
  • Tension
  • Compression

Test Specimens

  • Metals
  • Plastics
  • Composites
  • Rubber

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