HACH HQD Benchtop Multiparameter Meter by Hachfeld HACH HQD Benchtop Multiparameter Meter by Hachfeld Description Description HACH HQD Benchtop Multiparameter Meter by Hachfeld Related products Chemistries and Reagents Sension Meters HQ Portable Series HACH HQ Series Portable Meters by Hachfeld