Hanna Instruments - Checker Handheld Colorimeter Seawater Alkalinity (dKH) coral food All Bulk Reef Supply RO/DI

All Bulk Reef Supply RO/DI Systems are covered by our Limited Lifetime Warranty

easy to read digits

potassium and trace elements such as iron

Red Sea‰۪s REEFER series of reef systems provide advanced hobbyists with a solid foundation for building a fully featured reef or marine aquarium

Hanna Instruments - Checker Handheld Colorimeter Seawater Alkalinity (dKH) coral food All Bulk Reef Supply RO/DIThe Hanna Marine Alkalinity (dKH) Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. This level of