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A steel frame that will be landed on sea bed for few days. It will carry some containers to obtain and hold sediment and water sample An assorted array of sensors and pcb electronics are intstalled for sensing and measuring water and sediment temperature, salinity and conductivity of water, pH, dissolved gases like O2, Co2, Methane, Nitrogen, Natural sun light, and many other parameters. Sensors will be purchased by owner from proven and well renowned manufacturers. The mechanical design of water proof housing for battery, connectors, containers, and configuration and lay out on the frame will be design by owner. The software designer is expected to understand the logic and working of sensors and design software architecture and related electronics and prepare manual of operation and hand over details after successful implementation and testings and field testing and evaluation. Only firms or designer with proven track record in same or similar purpose will be considered. Should send previous history and client details for scrutiny.