supply , installation and commissioning of piezometer with digital recorder , list of item ( s ) / work ( s ) as per tender documents , piezoelectric transducer supply transportation , installation and commissioning of piezo meters with digital recorder for ground water level measurement and data monitoring including cloud monitoring on server at three nos of observation wells of iocls barauni refinery , begusarai , bihar . the item to be supplied by bidder against the material requisition as follows: 1 . piezometers with interconnecting cable , qty=03 2 . automatic data logging system , qty=03 3 . data retrieval / transmission system , qty=03 4 . shielded suitable extra cable of the same instrument for data transmission purpose , etc