looking for a good extensometer

[Shockdesigner331]

Hello all,
I'm looking for a good extensometer. There are many companies out there and all say the same thing "ours is the best". I figured I'd bring the question up in this forum with people who use these constantly. The material we are testing is NiTi. Standard .35" dia, 1.4" gage length specimens. Thanks for the suggestions.

 

[CoryPad]

Instron, MTS and Epsilon are all very good.

 

[EdStainless]

We like the Epsilon strain gage ones. They have proven reliable and accurate.

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