Gage Extension

Gage Extension

Rigid machined aluminum gage length extension for our ST350 Strain Transducers.  Typically used for averaging strain in non-homogeneous materials over a longer overall gage length 

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Features & Application
Options & Accessories


  • Precision machined aluminum 
  • Ideal for reinforced concrete members 
  • Mates with free end of ST350  
  • Adjustable in even multiples of ST350 gage length up to 24 inches 
  • Absorbs localized concentrations by averaging strain over long gage length 
  • Reusable, mount with BDI Mounting Tabs or standard ¼” concrete anchors 
  • Temporary or long term dynamic testing applications 


  • Bridges
  • Buildings
  • Dams 
  • Laboratory tests 

Options & Accessories

  • Threaded concrete anchors 
  • Extension Alignment Jig