A Sonde multiparameter sensor (often called a multiparameter sonde) is a compact, integrated water quality monitoring instrument designed to measure multiple physical and chemical parameters simultaneously in aquatic environments. A multiparameter sonde is a probe-like instrument that combines several sensors into one housing, enabling simultaneous measurement of key water quality parameters. These devices are widely used in environmental monitoring, marine research, etc. because they provide real-time, in-situ data for comprehensive water quality assessment.