Automated Total Nitrogen/Phosphorus/COD Analyzer NPW-160 Measuring based on official measuring method Multiple-wavelength detector enables measurement of total nitrogen, total phosphorus and COD simultaneously Space-saving design attained by eliminating back piping Drip-proof construction Meas. range Total nitrogen: 0 - 2 mg/L to 50 mg/L Total phosphorus: 0 - 0.5mg/L to 20 mg/L COD (UV method): 0 - 2 Abs