Complaint
| Model | DT-2 | DT-5 | DT-22L | |
| Telescope | Image | Erect | Erect | Erect |
| Magnification | 30× | 30× | 30× | |
| Objective lens | 45mm | 45mm | 45mm | |
| Field of view | 1° 30′ | 1° 30′ | 1° 30′ | |
| Minimum focus | 1.4m | 1.4m | 1.4m | |
| Stadia ratio | 100 | 100 | 100 | |
| Resolving power | 3″ | 3″ | 3″ | |
| Angle measurement | Method | Absolute encoder | ||
| Mininum reading | 1″ , 5″ | |||
| Detection method | H: both V: both | H: both V: both | H: both V: both | |
| Accuracy | 2″ | 5″ | 2″ | |
| Angle Unit | DEG / MIL/ GON | |||
| Display Panel | LCD both side | |||
| Compensator | Tilt Sensors | Yes | ||
| Compensating range | ± 3′ | |||
| Up laser plummet | Wave Length | / | / | 635nm |
| Laser Spot Size | / | / | 5mm/100m | |
| consistency between laser axle and collimation axle | / | / | ≤ 5" | |
| Laser Range | / | / | ≥ 200m(day) | |
| Down Plummet | Laser Plummet | |||
| Plate level | 30″ /2mm | |||
| Circular level | 8′ /2mm | |||
| Operating temperature | -20° C-+50° C | |||
| Power | Battery | Lion | ||
| Voltage | 3.7V | |||
| Weight | 4.8kg | |||
| Dimension | 200× 160× 345mm | |||
