The Hanna Ammonia Medium 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 precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Ammonia Medium 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.
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The HI715 Checker® HC (Handheld Colorimeter) is a simple, accurate and cost effective way to measure ammonia. Present in water as a component of the nitrogen cycle, ammonia is excreted from animals and other organisms such as heterotrophic bacteria, actinomycetes, and fungi during the metabolism of proteins and amino acids. Generally present in small quantities in unpolluted waters, higher levels indicate organic pollution, and is toxic to aquatic life. Designed as a more accurate alternative to chemical test kits, the HI715 provides quick, accurate results in four easy steps:
0.00 to 9.99 ppm NH₃-N
±0.05 ppm ±5% of reading
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.
1.5V AAA / 10,000 hours of continuous use
0 to 50°C (32 to 122°F); RH max 95% non-condensing
after ten minutes of non-use
Photometer/Colorimeter Light Source
LED @ 610 nm
Photometer/Colorimeter Light Detector
154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
196 g (6.91 oz.)
HI715 Checker® is supplied with (2) sample cuvettes with caps, ammonia reagent starter kit for 25 tests (1 bottle of HI715A-0 and 1 bottle of HI715B-0), battery, instructions and quick start guide.