| Range | 0.0 to 99.9 ppm as NH4+ | |
| Resolution | 0.1 ppm | |
| Accuracy (@20°C/68°F) | ±1.0ppm ±5% of reading | |
| Measurement Method | Colorimetric | |
| 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. | |
| Power Supply | Battery - 1 x 1.5V AAA | |
| Power Auto Off | After 10 min. of inactivity | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) | |
| Weight | 64 g (2.25 oz.) | |
| Ordering information: | Supplied with sample cuvettes with caps (2), Ammonia HR reagent starter kit (reagents for 10 tests), syringe with tip, plastic pipette, battery, instructions and quick start guide. |
