The Model 3742 clip-on extensometer is designed for fast mounting and high testing efficiency. It is ideal for laboratories that require frequent specimen and gauge length changes, reduced setup time, and consistent, repeatable strain measurements. The 3742 is applicable for testing a wide range of materials, including metals, plastics, composites, and ceramics, in both tension and compression.

This model sets the gauge length automatically as the extensometer is mounted on the specimen. Gauge length pins are not required. Gauge lengths can be changed in seconds, without tools, using the 3742’s new Quick Swap gauge length system, and fine adjustments can be made to ensure that the gauge length remains within tolerance. Clamping force is easily adjusted without tools.

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Get our most popular configurations fast! With a Quick to Ship order, we ship all model 3742 configurations with the -ST temperature range in 3-5 business days, including a connector for any of the most popular testing machines.

There is a small fee for Quick to Ship. Limited to quantity of 2 measuring systems (unlimited number of gauge lengths) per order. Customer order must state “Quick to Ship”.