Checker pocket photometer for seawater Alkalinity
HI772 Details:
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
The HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, but it also acts as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI772 provides quick, accurate results in four easy steps:

Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Aquaculture & Aquariums, Water Quality

| SKU | HI772 |
| Name | Marine Alkalinity (dKH) Checker® HC – HI772 |
| 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 in. x 2.4 in. x 1.5 in.) |
Icons meaning
Documents
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab blanditiis commodi earum error exercitationem fuga harum, id illo itaque labore minima molestiae molestias praesentium quasi quidem quisquam ratione repellendus velit.
Documents
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab blanditiis commodi earum error exercitationem fuga harum, id illo itaque labore minima molestiae molestias praesentium quasi quidem quisquam ratione repellendus velit.
Documents
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab blanditiis commodi earum error exercitationem fuga harum, id illo itaque labore minima molestiae molestias praesentium quasi quidem quisquam ratione repellendus velit.
| Home popular | No |
|---|---|
| Featured Products | No |
| Sale | No |
| New | No |
| Exclude from downloadable lists | No |
| Product Needs to appear in the sale widget | No |
| Child has discount | 0 |
| Brand | Hanna |
| Size | S/M |
| Species type | Alkalinity Checker |

Tank Bred
Cultured corals
Marine Fish
Soft Corals
LPS Corals
SPS Corals
Inverts
Rocks
Products
New arrivals
Outlet
Special offer