1. Water temperature: measuring range 0-55 ℃, accuracy ± 0.5 ℃
2. ph: measuring range 0-14
3. Turbidity: measurement range 0-400NTU
4. Heavy metal: measurement range 0-50mg/L, error ≤ 5%
5. Pollutants: measurement range 0-300mg/L, error ≤ 10%
6. Conductivity: measuring range 0-200ms/cm
7. COD: measurement range 10-5000mg/L, error ≤ 5%