| Type | WSY70-4 |
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| Order no. | 54576 | ||
| Crystal size | 10 mm Ø | ||
| Frequency | 4 MHz | ||
| Beam angle | 70 ° | ||
| Bandwidth | 2,6 .. 5,4 MHz | ||
| Operating range | 6 .. 350 mm | ||
| Near field length | 16 mm | ||
| Echo width | 1,5 mm | ||
| Contact area | 28x13 mm | ||
| Remark | With composite ceramic element. WSY 70.. is suitable for excitation of creeping waves in mild steel. |