Hanna Instruments Marine Alkalinity Checker HC
Product details
| Management number | 234601142 | Release Date | 2026/07/02 | List Price | $4.00 | Model Number | 234601142 | ||
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| Category | |||||||||
| * | Affordable electronic tester for measuring alkalinity in reef aquariums |
| * | Measures marine aquarium alkalinity with greater ease and convenience |
| * | Easier &; more accurate than chemical test kits for aquarium alkalinity |
Upgrade from chemical test kits to professional instrumentation without breaking your budget. Hanna Instruments Marine Alkalinity Checker HC is a budget-friendly single parameter electronic tester for measuring marine alkalinity level. Compact handheld colorimeter delivers the accuracy of professional instrumentation at the affordable price of a chemical test kit.
Easier to use and more accurate than chemical test kits, Hanna Instruments Marine Alkalinity Checker HC provides a simple cost effective way to measure alkalinity. Routine measurement of alkalinity is crucial to ensure proper alkalinity levels essential for maintaining healthy coral growth as well as buffering against large changes in acidity in marine reef aquariums.
Hanna Instruments Marine Alkalinity Checker HC is supplied with (2) sample cuvettes with caps, alkalinity-reagent starter kit for 25 tests (1 bottle of alkalinity reagent), 1 ml syringe and tip), 1.5V AAA battery, instructions and quick start guide.
The Marine Alkalinity Checker HI755 measures alkalinity in parts per million and features a range between 0 to 300 ppm with 1 ppm resolution (±5 ppm ((mg/L)) ±5% accuracy @ 25°C/77°F of reading).
The Marine Alkalinity Checker HI772 measure alkalinity in degrees of carbonate hardness and features a range between 0.0 to 20.0 dKH with 0.1 dKH resolution (±0.3 dKH ±5% accuracy @ 25°C/77°F of reading).
Hanna Instruments Marine Alkalinity Checker HC
Designed as a more accurate alternative to chemical test kits, the HI755 provides quick, accurate results in four easy steps:
- "Zero" the Checker HC as required in specific procedure
- Add reagent to your water sample
- Place the vial into your Checker HC
- Press the button and read the results
- It's that easy!
| Specifications | |
| Range | HI755: 0 to 300 ppm HI772: 0.0 to 20.0 dKH |
| Resolution | HI755: 1 ppm HI772: 0.1 dKH |
| Accuracy @ 25°C/77°F | HI755: ±5 ppm (mg/L) ±5% of reading HI772: ±0.3 dKH ±5% of reading |
| Light Source | LED @ 610 nm |
| Light Detector | Silicon Photocell |
| Method | Colorimetric method |
| Environment | 0 to 50°C (32 to 122°'F); RH max 95% non-condensing |
| Battery Type | (1) 1.5V AAA |
| Auto-off | After ten minutes of non-use |
| Dimensions | HI755: 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5") HI772: 86.0mm x 61mm x 37.5mm (3.4" x 2.4" x 1.5") |
| Weight | 64 g (2.25 oz.) |
General Information
The Hanna Marine Alkalinity Checker HC 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. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Alkalinity Checker HC uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit. 6 month limited warranty.
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