| Wedge type | Waves | |
| su = Wedge available for U-type probe | s=shear wave L= Longitudinal wave | |
| Tubing diameter | Probe mounting | |
| gaging tubing outside diameter(inch) | N=Normal | |
| Curvature type | L= Lateral (90° oblique angle) | |
| AOD=Axial Outside Diameter (Circumferential scanning) | DN =Dual normal | |
| COD=Circumferential Outside Diameter ( Axial scanning) | Option | |
| Refracted angle in steel | IHC= Irrigation, mounting holes and carbide pins | |
| 0 =0° 55 = 55° | IHS= Irrigation, mounting holes and stainless steel frame |
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