Tender For supply of surge protective device (spd) life tester, designed for onsite testing of surge prote ction devices. it allows checking and indicating the health status of gdt/mov based spd of voltage range u p to 1000v. it shall indicate the status of spd by measuring its electrical parameters. spd tester shall be of reputed make jmv or similar. [ warranty period: 30 months after the date of delivery ]