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Hardness Testing

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Prism attachment

Manufacturer: NewSonic

The Sono-PM-4 prism attachment set is ideal for measuring on curved surfaces. The prism attachment set consists of a special probe base for motorised measurement probes and features a screw thread and four extensions. Three shape-adapted plates and one plate for flat surfaces can be attached to the special probe base. These enable the best possible adaptation to curved surfaces.


  • For use with our motorised measurement probes

  • Self-centering, shape-adapted probe base

  • Enables adaptation to curved surfaces