| Ammonia nitrogen range | 0.0 to 100.0 mg/L (as NH3+) |
| resolution | 0.1 mg/L |
| Accuracy @25 ℃ | +/- 0.5 mg/L +/- 5% of reading |
| Method standard | ASTM D1426 Knoll Method |
| Light source | Light Emitting Diode @420nm, Silicon Light source, Bandwidth 8nm, Wavelength Accuracy +/- 1.0nm |
| Reaction cup size | Diameter 24.6mm, inner diameter 22mm |
| GLP function | Date, last calibrated date |
| Display | 128X64 pixel black and white LCD with backlight |
| automatic storage | The last 50 measurements |
| Battery life | 1.5V AA battery (3), greater than 800 hours (without backlight) |
| Automatic shutdown | Automatic shutdown after 15 minutes without operation |
| Applicable environment | 0 to 50℃;RH-max100% IP67 |
| size | 142.5 x 102.5 x 50.5 mm, |
| Weight | 380g |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;