HACH Automatic Titrator by Desalytics HACH Automatic Titrator by Desalytics Description Description HACH Automatic Titrator by Desalytics Related products Digital Titrators. Portable and robust digital Titrator HACH DR6000 UV Vis Spectrophotometer by Desalytics HACH DR3900 Vis Spectrophotometer by Desalytics Autotitrators, Hach’s TitraLab AT1000.