| Test item | COD, Ammonia nitrogen, Total phosphorus, Total nitrogen |
| Test range | 0-15000(COD)
0-50(Ammonia nitrogen) 0-20(Total phosphorus) 0-50(Total nitrogen) |
| Wavelength | 420nm/450nm/520nm/610nm |
| Method | Spectrophotometer |
| Precision | 5% |
| Light source | Silicon diode |
| Life of battery | More than 30h |
| Size and weight | 90x70x125mm
300g(including battery) |
