ZENMUSE L2
The DJI Zenmuse L2 is an enterprise aerial surveying payload designed for commercial drones such as the DJI Matrice 350 RTK and Matrice 300 RTK. It integrates a high-precision LiDAR sensor, a high-accuracy self-developed Inertial Measurement Unit (IMU), and a 4/3 CMOS RGB mapping camera into a 3-axis stabilized gimbal.
Core Components
Frame-Based LiDAR: Uses a 905nm laser with up to 5 returns, allowing it to penetrate dense tree canopy to capture accurate ground elevations. It achieves a point cloud rate of up to 240,000 pts/s (single return) or 1,200,000 pts/s (multiple returns).
4/3 CMOS RGB Camera: Features a 20 MP sensor with a mechanical shutter to prevent motion blur during high-speed mapping. It captures high-resolution imagery used for photogrammetry and for coloring the LiDAR point cloud in true RGB.
High-Accuracy IMU: Delivers high precision without requiring a lengthy pre-flight IMU warm-up. Coupled with RTK positioning, it ensures overall system accuracy of 5 cm horizontally and 4 cm vertically from a flight altitude of 150 m.
Technical Specifications
| Feature | Specification |
|---|---|
| Compatible Drones | DJI Matrice 350 RTK, Matrice 300 RTK |
| Detection Range | Up to 250 m (at 10% reflectivity) / 450 m (at 50% reflectivity) |
| System Precision | Horizontal: 5 cm; Vertical: 4 cm (at 150 m altitude) |
| LiDAR Returns | Up to 5 returns |
| Spot Size | 4 cm × 12 cm @ 100 m |
| RGB Sensor | 4/3 CMOS, 20 MP, Mechanical Shutter |
| Weight & IP Rating | Approx. 905 g |
Primary Applications
Topographic Surveying: Rapid 3D terrain modeling, contour mapping, and ground elevation extraction.
Forestry & Environmental Management: Penetrating tree foliage to measure tree canopy height, density, and ground topography.
Power Line & Infrastructure Inspection: Detecting fine cables, utility poles, and structural details.
Construction & Earthworks: Volumetric calculations for cut-and-fill projects and site tracking.
