Hach DRB 200 Chemical Oxygen Demand Testing Unit

The heating block is rated at 37-165C for a period of 0-480 minutes. The small, 16 mm diameter vial wells in the heating block are suitable for Hach COD, Unicell, TOC, and Test N Tube tests.  The DRB 200 has 6 stored and 3 programmable temperature programs.