A Lysimeter is a precision environmental and agricultural monitoring system used to measure the movement and balance of water within the soil. It provides valuable information about evapotranspiration, soil moisture, drainage, precipitation, and crop water consumption, helping researchers and agricultural professionals better understand the soil–water–plant relationship. Lysimeters are widely used in agricultural research, irrigation management, hydrological studies, environmental monitoring, and crop water-use assessment.

Modern lysimeter systems can be integrated with soil moisture sensors, weather stations, data loggers, and automated monitoring platforms to collect continuous measurements and support long-term field studies.