| Specification | Parameter |
| Brand / Manufacturer | Dongcheng |
| Model Number | DFF09-41 |
| Product Type | Professional Multi-Line Green Beam Laser Level |
| Power Supply | 4V / 4.0Ah Rechargeable Lithium-Ion Battery Pack |
| Laser Diode Type (Lines) | 512 nm High-Intensity Green Diode |
| Centering Diode Type (Plumb) | 650 nm Red Optical Centering Diode |
| Laser Safety Class | Class 3R |
| Leveling Accuracy | 5 m ± 1 mm |
| Vertical Accuracy | 5 m ± 1 mm |
| Width of Laser Line | 2.5 mm at a distance of 5 m |
| Auto-Leveling Range | ± 3° |
| Horizontal Fan Angle | ≥ 120° |
| Vertical Fan Angle | ≥ 120° |
| Base Construction | Thickened Heavy-Duty Aluminum Alloy with 360° Bidirectional Fine Adjustment |
| Tripod Mounting Thread | 5/8" Industrial Standard Thread |
| Operating Temperature | -10°C to 40°C |
| Net Weight | 0.73 kg |
| Application | Suspended Ceilings, Tile Layout, Drywall Partitioning, MEP Channeling & Carpentry |
| Best Used For | High-Visibility Alignment, Crisp Indoor/Outdoor Layouts & All-Day Laser Levelling across Nepal |
Class 3R High-Intensity 512nm Green Laser: Casts ultra-bright, crisp green reference lines with sharp visibility under bright ambient light, paired with a 650nm optical centering plumb dot.
Long-Endurance 4V / 4.0Ah Lithium-Ion Battery: High-capacity rechargeable lithium pack provides extended operational runtime to power through full-day jobsite layout shifts without interruption.
360° Bidirectional Fine-Adjustment Base: Heavy-duty turntable mechanism allows micro-metric rotational positioning for rapid, pinpoint alignment over control marks.
Thickened Aluminum Alloy Base Construction: Ruggedized metallic base resists jobsite drops, prevents thermal expansion drift, and dampens mechanical vibration during active operation.
Rapid Self-Leveling with Wide Fan Angle: Pendulum automatically levels within a ±3° range with ≥120° broad vertical and horizontal dispersion angles for full-room coverage across Nepal.