HACH Automatic Titrator by Hachfeld HACH Automatic Titrator by Hachfeld Description Description HACH Automatic Titrator by Hachfeld Related products DRB200 Digital Reactor Block by Hachfeld HACH DR6000 UV Vis Spectrophotometer by Hachfeld Digital Titrators. Portable and robust digital Titrator DR900 Multiparameter Portable Colorimeter by Hachfeld