HACH HQ Series Portable Meters by Hachfeld HACH HQ Series Portable Meters by Hachfeld Description Description HACH HQ Series Portable Meters by Hachfeld Related products DR6000 UV VIS HACH DR6000 UV Vis Spectrophotometer by Hachfeld Packet Pro Testers HACH AT1000 Automatic Titrator by Hachfeld