Description

| Model | E320 |
| Standard deviation of 1 KM double run levelling | < 2.5 mm |
| Telecope | erect |
| Magnification | 20 X |
| Clear objective lens | 38 mm |
| Field angle | 1′ 20′ |
| Dimension | 40 x 30 x 40 cm |
| Shortest focusing distance | < 0.6 m |
| Multiplication factor | 100 |
| Additive constant | 0 |
| Compensator working range | 15 ‘ |
| Compensator setting accurancy | 0.8″ |
| Sensitivity of circular bubble | 8′ / 2 mm |
| Graduation interval | 1 |
| Weight | 1.8 kg |
| Packing Size | 41.5 x 31.5 x 41 cm |