DR6000 UV VIS DR6000 UV VIS Description Description DR6000 UV VIS Related products HACH DR6000 UV Vis Spectrophotometer by Hachfeld HACH TL23 series laboratory Benchtop Turbidimeter by Hachfeld Digital Titrators. Portable and robust digital Titrator Autotitrators, Hach’s TitraLab AT1000.