Specifications
| Description | Smart Turbidity | High-precision Turbidity |
| Model | PT-4000S | PT-4000H |
| Minimum readout (NTU) | 0.01 | 0.001 |
| Measuring range (NTU) | 5~100, 100~1000 | 5~100, 100~1000 |
| Basic error | ±5%FS | ±3%FS |
| Repeatability | ≤0.5% | ≤0.5% |
| Zero drift | ±0.5%FS | ±0.5%FS |
| Applications | Industrial waste water and river water | Industrial waste water and river water |