Product Description
1 Without compensator
2 Fit to low-order controlling measurement, cadastral, building, railway, and normal measurement
3 Reasonable price
4 Horizontal angle measurement accuracy: ± 6"
5 Vertical angle measurement accuracy: ± 10"
| model | J2-2 | TDJ2E | TDJ6E | J6E | |
| Vertical Standard deviation of a direction measured in face left and face right | ± 6" | ± 6" | ± 10" | ± 10" | |
| Horizontal Standard deviation of a direction measured in face left and face right | ± 2″ | ± 2″ | ± 6" | ± 6" | |
| Telescope | Image | Erect | |||
| Magnification | 30× | 28× | |||
| Objective aperture | 40mm | ||||
| Minimum focus | 1.6m | 2.0m | |||
| Stadia ratio | 100 | ||||
| Stadia constant | 0 | ||||
| Optic plummet | magnification | 3× | |||
| Field of view | 5° | ||||
| Focus range | 0.5m-∞ | ||||
| Compensator | Compensating range | ±3' | ±2' | ±2' | no |
| Setting accuracy | ±0.3" | ±0.3" | ±1" | ||
| Sensitivity of circular level | 8′/2mm | ||||
| Sensitivity of plate level | 20″/2mm | 30"/2mm | |||
| Weight | 6kg | 6kg | 4.3kg | ||
| size(mm) | 310*160*148 | 286*136*130 | 307*230*180 | ||