Tender For purchase of various items for development of ultraviolet photo-detector measurement set-up-uv measurement set-up: i) uv sources of 365 nm 254 nm (01 no. each) ii) timer (01 no.) iii) stainless steel chamber of diameter: 4-inch, length: 1.25m, sample holder with cu probes, graduated scale with movable assembly etc. (01 no.) iv) interfacing of keithley's electrometer with measurement set-up v) installation and calibration vi) service of keithley electrometer