The calibrator is a railway measuring instrument that used to calibrate the 1435mm track gauge, the guard rail check gauge, the guard rail face gauge and the super-elevation.
The calibrator can calibrate the digital track gauge with high accuracy,and easy to operate.
| Model | Calibration | Measurement range | Max error |
| LJ-JDQ-I | Track gauge | 1410~1470 | Zero position ±0.04 |
| Nonzero position ±0.06 | |||
| Super elevation | Super elevation special gauge part 30mm,60mm,120mm,180mm Use according to the measured value | ±0.06 |

Calibrator for digital track gauge