| Code | Accuracy | Spacing of markers | Max. gauge |
|---|---|---|---|
| STM-G1 | ±0.1mm | 10mm | 300mm |
| STM-G2 | ±0.05mm | 5/10mm | 300mm |
| STM-G3 | ±0.05mm | 10mm | 400mm |
| STM-G4 | ±0.05mm | 5/10mm | 500mm |
| Code | Accuracy | Spacing of markers | Max. gauge |
|---|---|---|---|
| STM-G1 | ±0.1mm | 10mm | 300mm |
| STM-G2 | ±0.05mm | 5/10mm | 300mm |
| STM-G3 | ±0.05mm | 10mm | 400mm |
| STM-G4 | ±0.05mm | 5/10mm | 500mm |