What is water chemical oxygen demand means?

This video explains what chemical oxygen demand in water is and how to monitor chemical oxygen demand in water. The online COD sensor independently developed and produced by daruifuno adopts UV ultraviolet absorption method, is made of stainless steel, has digital RS485 output, and has an automatic cleaning wiper. It is widely used in various water quality monitoring industries. If you are interested in our products, welcome to our official website: www.daruifuno.com.