85226872
Jan 26, 2011
Mar 27, 2012
APPARATUS AND INSTRUMENTS FOR MEASURING AND STORING DATA, NAMELY, A DEVICE USED FOR MEASURING AND MONITORING GROUNDWATER AND SURFACE WATER DEPTH, LEVEL, TEMPERATURE, PRESSURE, CONDUCTIVITY, OXYGEN CONCENTRATION, AND SALINITY; APPARATUS FOR RECORDING, PROCESSING AND TRANSMITTING OF DATA
Electrical and Scientific Apparatus