The Hanna Ammonia High Range (0 to 99.9 ppm) 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 ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Ammonia High Range Checker® 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.
Features at-a-glance:
Specifications
| Range | 0.0 to 99.9 ppm as NH₄⁺ |
| Resolution | 0.1 ppm |
| Accuracy @ 25°C/77°F | ±1.0 ppm ±5% of reading |
| Light Source | LED @ 470 nm |
| Light Detector | silicon photocell |
| Method | adaptation of the ASTM Manual of Water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample. |
| 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 | 81.5mm x 61mm x 37.5mm (3.2' x 2.4' x 1.5”) |
| Weight | 64 g (2.25 oz.) |
| Ordering Information | HI733 Checker® is supplied with (2) sample cuvettes with caps, ammonia reagent starter kit for 25 tests (1 bottle of HI733A-0 and 1 bottle of HI733B-0), syringe with tip, dropper, battery, instructions and quick start guide |
| Warranty | 1 year limited warranty |
| Proposition 65 |
WARNING: This product can expose you to chemicals including Mercury and mercury compounds, which is known to the State of California to cause birth defects or other reproductive harm. |
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