一种革命性的压电复合材料晶体技术，与高性能和耐磨的混合前表面相关联，使Sapphire 探头可以直接与零件接触，并在承受机械应力和摩擦的长时间暴露下保持其准确性和性能。
| Reference | Frequency MHz | Number of elements | Pitch mm | Elevation mm |
|---|
|
| EK10-LA3.5/16-SAPPHIRE | 3.5 | 16 | 0.6 | 10 |
| EK10-LA5/16-SAPPHIRE | 5 |
| EK11-LA2.25/32-SAPPHIRE | 2.25 | 32 |
| EK11-LA5/32-SAPPHIRE | 5 |
| EK11-LA5/64-SAPPHIRE | 5 | 64 | 0.35 | 8 |
| EK12-LA2.25/64-SAPPHIRE | 2.25 | 0.6 | 10 |
| EK12-LA3.5/64-SAPPHIRE | 3.5 | 0.6 | 10 |
| EK12-LA5/64-SAPPHIRE | 5 | 0.6 | 10 |
|
| EK11-M5/64-SAPPHIRE | 5 | 64 | 1.4 | 2 |