| Measurement range | 200 to 600 ppm |
| resolution | 1 ppm |
| Accuracy | +/- 6% of the reading |
| Light source | LED @ 610 nm |
| Automatic shutdown | No operation after ten minutes |
| Measuring method | Zinc reagent method |
| basic configuration | Host, HI758-26 reagent, HI731313H Glass Colorimetric dish, English instruction manual and exquisite Chinese color comprehensive operation manual, HI721025 carrying case |
| optional reagents | HI758-26 |
| calibration group | HI758-11 |
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;