supply of spare parts including calibration regular upkeep of on site mobile analysis system omas used for drinking water quality monitoring in arsenic iron removal plants airps related to water quality monitoring surveillance under jal jee- 1 annual maintenance contract (amc) for on-site mobile analysis system(omas) installed in 120 airps(arsenic iron removal plants) sites of phe dte, govt of w.b, preventive maintenance & calibration of omas at the airps has to be done quarterly for the upkeep of the systems for 12 months 2 sample vials for photometer (pack of 5) 3 crushing rods for photometer (pack of 5) 4 hl101 pocket ph meter 5 charger of densitometer 6 battery for photmeter 7 battery for ph meter 8 ht1000 verification standards for photometer 9 ph calibration solution of 4.01 of 60ml volume for the ph meter 10 ph calibration solution of 7.00 of 60ml volume for the ph meter 11 ph calibration solution of 10.01 of 60ml volume for the ph meter 12 lovibond md600 for testing of iron, manganese, rc & fluoride 13 densitometer for testing arsenic 14 supply and delivery of android based rugged hand held devices, comprising of operating system android 9.0+ , memory 32gb, ram 3gb, rear camera & megapixel, 4000 mah battery with gps and a-gps compatible with existing water quality application linked with water quality dashboard for capturing & managing water quality results onsite including 1 year replacement warranty 15 purulia