Product Overview Online CODMn Water Quality Monitor — Permanganate Index Analyzer The AG-CMn07 is an automatic online water quality analyzer designed for continuous monitoring of organic pollution in surface water. Using potassium permanganate oxidation spectrophotometry, it delivers reliable permanganate index (CODMn) measurements for wastewater with concentrations in the 0–20 mg/L range. Application This method is applicable to wastewater with a permanganate index in the