| Actual Speed | Variation in measured value | Error |
| 10 km/hr | 9 - 11 km/hr | ±10.0% |
| 15 km/hr | 14.5 - 16 km/hr | ±5.0% |
| 30 km/hr | 27 - 32 km/hr | ±8.3% |
| 40 km/hr | 39 - 42 km/hr | ±3.7% |
| 50 km/hr | 47 - 52 km/hr | ±5.0% |