Tender For corrigendum : supply of hydrophones with inbuilt pre amplifier and integrated datalogger for 6000m - hydrophones with inbuilt pre-amplifier and integrated datalogger for 6000m, hydrophones with inbuilt pre-amplifier and integrated datalogger with configuration and post processing software, 6000m rated underwater in-line cable with suitable connector & locking sleeve 3m length, 6000m rated underwater in-line cable with suitable connector & locking sleeve 6m length, underwater bulkhead mating with inline cable, suitable software for hydrophones, 600 bar pressure rated dummy for hydrophone, freight and insurance charges (all risk insurance to be covered from supplier warehouse to niot warehouse), third party inspection charges during pre-shipment. (only for payment through letter of credit), gst (only for indian bidder)