The Duke LI1 laser line angle gauge is a portable instrument that can project a laser line at any angle up to 360°, providing precise horizontal, vertical and plumb references for construction, calibration and positioning tasks. It is suitable for use in mechanical, instrumentation, building, interior decoration and related fields.
The manual explains power on/off procedures, laser activation, angle and relative‑angle measurement modes, display information, technical specifications, safety precautions and maintenance guidelines. This manual is written in Chinese.
| Product name | 杜克 LI1 激光投线角度仪 |
|---|---|
| Size | 120 × 20 × 35 mm |
| Weight | 70 g |
| Laser radiation level | Class 2 (660 nm, <1 mW) |
| Peak power | 700 mW |
| Measurement accuracy | ±0.5° |
| Horizontal accuracy | ±0.5 mm/5 m |
| Vertical accuracy | ±0.5 mm/5 m |
| Optimal operating range | <10 m |
| Operating temperature | -10 °C ~ 50 °C |
| Storage temperature | -20 °C ~ 55 °C |
| Power supply | 730 mAh rechargeable Li‑ion battery |
| Continuous endurance (laser off) | 33 h |
| Single‑laser continuous endurance | 5 h |
| Dual‑laser continuous endurance | 3.5 h |
| Standby time | >300 days |