Effluent Monitoring is the process of continuously measuring the quality of wastewater discharged from industrial processes, treatment plants, or commercial facilities. This involves tracking key parameters such as pH, Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), and the presence of heavy metals or toxic chemicals. Real-time effluent monitoring systems help industries ensure compliance with environmental regulations set by authorities like CPCB/SPCB, protect natural water bodies from pollution, and maintain efficient operation of Effluent Treatment Plants (ETPs). For sectors such as textiles, chemicals, pharmaceuticals, and food processing, effluent monitoring is essential to control water pollution, avoid penalties, and support sustainable industrial practices.