supply of digital ultrasonic single rail testerdigital ultrasonic single rail tester,digital ultrasonic single rail tester (srt) with 9 probes, colored signals and real a-scan pulse ec ho with continuous recording of b-scan storage of each probe along with data setups, including all standard acce ssories with rdso specification no. rdso/m&c/ ndt/128/2007(b-scan) rev- 4, aug 2021.warranty 36 month s. [ warranty period: 36 months after the date of delivery ] , comprehensive annual maintenance contract charges for 5 years after expiry of free warranty period of 36 months. warranty period: 3 years, amc period: 5 years, rate of discounting: 10 % at (location) sse/pw/usfd/sa, sr tamil nadu 00 numbers