The TPM type piezometer is suitable for long-term installation in hydraulic structures or other concrete structures and soil bodies to measure the seepage (pore) water pressure inside the structures or soil, or it can directly measure the height of the groundwater level. The piezometer, when equipped with matching accessories, can be used in pressure measurement pipelines and foundation drilling. The piezometer is made of all stainless steel, is compact and small, and can be conveniently placed in narrow areas where measurement is required