supply of two (02) nos. of portable digital ultrasonic flaw detector, along with standard accessories and spares as per rdso specification no. m&c/ndt/125/2004 rev-ii january 2017 ( it should be procured from rdso approved vendor. )two (02) nos. of portable digital ultrasonic flaw detector, along with standard accessories and spares as per rdso specification no. m&c/ndt/125/2004 rev-ii january 2017 ( it should be procured from rdso approved vendor. ),two (02) nos. of portable digital ultrasonic flaw detector, along with standard acc essories and spares as per rdso specification no. m&c/ndt/125/2004 rev-ii january 2017 ( it should be pr ocured from rdso approved vendor. ) [ warranty period: 30 months after the date of delivery ] ] , single crystal normal probe , spec. 20mm dia, 2.5mhz , it must be the same manufact urer as the ufd. it should be from same manufacturer as the ultrasonic flaw detector. [ warranty period: 30 months after the date of delivery ] ] , probe connector cable (bnc to bnc) , cable length 2 to 2.5 meter ,it must be the sam e manufacturer as the ufd . it should be from same manufacturer as the ultrasonic flaw detector. [ warra nty period: 30 months after the date of delivery ] ]