The piezometer, also known as pore pressure meter, is used to measure pore water pressure in soil, earth/rock fills, foundations and concrete structures. It provides significant quantitative data on the magnitude and distribution of pore pressure and its variations with time.

The sensor helps in evaluating the pattern of seepage, zones of potential piping and the effectiveness of seepage control measures undertaken. The sensor also is used to measure water level in reservoirs, wells and boreholes.