Maple Syrup color grading Checker HC® colorimeter Hanna’s Maple Syrup Digital Grader bridges the gap between visual grading kits and professional instrumentation. Temporary maple syrup grading kits provide minimal 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... more info

Marine calcium Checker HC® colorimeter The Hanna Marine Calcium 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... more info

Marine Alkalinity (CaCO3) Checker® HC The Hanna Marine Alkalinity 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... more info

Chloride Checker (0.0 to 20.0 ppm) The Hanna Chloride 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... more info

Chromium Low Range Checker (0-300 ppb) The Hanna Chromium VI Low-Range Checker (HI-749) tests for the presence of Chromium VI (Hexavalent Chromium) in concentrations within the range of 0 to 300 ppb with an accuracy of ±3 ppb in samples such as drinking water and wastewater. With a digital readout, Hanna Checkers provide greater measurement accuracy when compared with chemical test kits that rely on human... more info

Copper Low Range Checker The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The Checker® is both accurate and affordable. The HI-747 Checker®HC (Handheld Colorimeter) is... more info

Iron Low Range Checker HC® colorimeter: Range 0 to 999 ppb (ug/l) The Hanna Iron Low-Range 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... more info

Fluoride HR Checker HC®, 0.0 to 20.0 ppm   The Hanna Fluoride High-Range 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... more info

Phosphorus ultra low range Checker HC® colorimeter: Range 0 to 200 ppb The Hanna Phosphorus Ultra Low-Range (0 to 200 ppb) 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... more info