The 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 instrumentation also offers greater resolution and accuracy, but can cost hundreds of dollars. The Hanna Marine Alkalinity Checker® measures alkalinity in dKH units, using a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
- Compact, Portable Design
- Built-in Timer
- One-Button Operation
Hanna Instruments Marine Alkalinity (dKH) Checker® HC
Seawater Alkalinity Range 0.0 to 20.0 dKH Seawater Alkalinity Resolution 0.1 dKH Seawater Alkalinity Accuracy ±0.3 dKH ±5% of reading Seawater Alkalinity Method colorimetric method. Photometer/Colorimeter Light Source LED @ 610 nm Photometer/Colorimeter Light Detector silicon photocell Battery Type/Life (1) 1.5V AAA Automatic Shut-Off after ten minutes of non-use Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Weight 64 g (2.25 oz.) Dimensions 86.0 mm x 61.0 mm x 37.5 mm (3.4" x 2.4" x 1.5") Contents HI772 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), (1) 1 ml syringe and tip, battery, instructions, and quick start guide.