How COD Sensors "Stand Firm" in High-Pollution Scenarios
This sensor employs ultraviolet absorption spectroscopy (254 nm wavelength) and, based on the Lambert-Beer law, calculates the COD value by measuring the absorption intensity of ultraviolet light by the water sample. No chemical reagents are required, no secondary pollution is generated, and the response time is only a few seconds, truly achieving "measure and obtain instantly," completely eliminating the cumbersome process of traditional laboratory digestion methods.
