| Measurement range | 0 to 600 ppb NO2 |
| resolution | 1 ppb |
| Accuracy | +/- 20 ppb +/- 5% of the reading |
| Light source | LED @470nm |
| Automatic shutdown | No operation after ten minutes |
| Measuring method | EPA 354.1 Diazo method ferrous sulfate method |
| optional reagents | HI707-25 |
| calibration group | HI707-11 |
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;