Normal Single Crystal Probe Pr, 2.5 Mhz, Crystal Size: 20 Mm Dia, Suitable For Modsonic Mak E Arya 1(R) Along With Oem Certificate. Compatible To Usfd Machine (Rdso Specn. No. M&C/Ndt/125/200 4, Rev.- Ii, 2007) [ Warranty Period: 6 Months After The Date Of Delivery ] ]