supply of portable digital ultrasonic flaw detector to rdso specification no m&c/ndt/125/2004, rev-ii , january 2017, version no-3 with standard accessories and spares or latest. to be procured from rdso approved sources only. make: modsonic instruments mfg pvt ltd. , electronic & engg company india pvt. ltd. or similar.portable digital ultrasonic flaw detector to rdso specification no m&c/ndt/125/2004, rev-ii , january 2017, version no-3 with standard accessories and spares or latest. to be procured from rdso approved sources only. make: modsonic instruments mfg pvt ltd. , electronic & engg company india pvt. ltd. or similar.,portable digital ultrasonic flaw detector to rdso specification no m&c/ndt/125/2004, rev-ii , january 20 17, version no-3 with standard accessories and spares or latest. to be procured from rdso approved sources only. mak e: modsonic instruments mfg pvt ltd. , electronic & engg company india pvt. ltd. or similar ..u-vam rdso item id is 310 0265. 1.guarantee/warranty & test certificate to be supplied along with material. 2.valid calibration certificate of validit y one year issued from nabl/govt approved test lab to be produced along with supply. [ warranty period: 30 months after the date of delivery ] ]