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 HACH 2100Q Portable Turbidimeter DR6000 UV VIS TU5200 Laboratory Laser Turbidimeter by Hachfeld DRB200 Digital Reactor Block by Hachfeld