It is also known as digital cod digester, the cod digestion apparatus is suitable for cod method for monitoring wastewater influent and effluent, industrial process water, and more. Cod digestion apparatus is commonly used by pollution control labs. Cod digestion apparatus is used to determine chemical oxygen demand. The temperature is controlled by digital temperature indicator cum controller. In addition it has provision for 15 samples and is supplied with 15 nos. Glass reaction vessels.