HACH AT1000 Automatic Titrator by Hachfeld HACH AT1000 Automatic Titrator by Hachfeld Description Description HACH AT1000 Automatic Titrator by Hachfeld Related products Autotitrators, Hach’s TitraLab AT1000. HACH DR6000 UV Vis Spectrophotometer by Hachfeld DR3900 VIS DR6000 UV VIS