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Zenmuse L2

High-Precision Aerial LiDAR System

Powerful Range, Elevated Precision

Edited Date: 11/10/2023

General

Product Name

Zenmuse L2

Dimensions

155×128×176 mm (L×W×H)

Weight

905±5 g

Power

28 W (typical)
58 W (max.)

IP Rating

IP54

Supported Aircraft

Matrice 300 RTK (requires DJI RC Plus)
Matrice 350 RTK

Storage Temperature

-20° to 60° C (-4° to 140° F)

System Performance

Detection Range

450m @50% reflectivity, 0 klx
250m @10% reflectivity, 100 klx

Typical data. Measured using a flat subject with a size larger than the laser beam diameter, perpendicular angle of incidence, and an atmospheric visibility of 23 km. In low-light environments, the laser beams can achieve the optimal detection range. If a laser beam hits more than one subject, the total laser transmitter power is split, and the achievable range is reduced. The maximum detection range is 500 m.

Point Cloud Rate

Single return: max. 240,000 pts/s
Multiple returns: max. 1,200,000 pts/s

System Accuracy

Horizontal: 5 cm @ 150 m
Vertical: 4 cm @ 150 m

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). Using repetitive scanning with the RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m. The field contained objects with obvious angular features, and used exposed hard ground check points that conformed to the diffuse reflection model. DJI Terra was used for post-processing with Optimize Point Cloud Accuracy enabled. Under the same conditions with Optimize Point Cloud Accuracy not enabled, the vertical accuracy is 4 cm and the horizontal accuracy is 8 cm.

Real-Time Point Cloud Coloring Coding

Reflectivity, Height, Distance, RGB

LiDAR

Ranging Accuracy (RMS 1σ)

2 cm @ 150 m

Measured in an environment of 25° C (77° F) with a subject of 80% reflectivity at a distance of 150 m. The actual environment may differ from the testing environment. The figure listed is for reference only.

Maximum Returns Supported

5

Scanning Modes

Non-repetitive scanning pattern, Repetitive scanning pattern

FOV

Repetitive scanning pattern: Horizontal 70°, Vertical 3°
Non-repetitive scanning pattern: Horizontal 70°, Vertical 75°

Minimum Detection Range

3 m

Laser Beam Divergence

Horizontal 0.2 mrad, Vertical 0.6 mrad

Measured at full width at half maximum (FWHM) conditions. 0.6 mrad signifies that for every 100m increase in distance, the diameter of the laser beam expands by 6 cm.

Laser Wavelength

905 nm

Laser Spot Size

Horizontal 4 cm, vertical 12 cm @ 100 m (FWHM)

Laser Pulse Emission Frequency

240 kHz

Laser Safety

Class 1 (IEC 60825-1:2014)

Accessible Emission Limit (AEL)

233.59 nJ

Reference Aperture

Effective Aperture: 23.85 mm (equivalent to circular)

Max Laser Pulse Emission Power Within 5 Nanoseconds

46.718 W

Inertial Navigation System

IMU Update Frequency

200 Hz

Accelerometer Range

±6 g

Angular Velocity Meter Range

±300 dps

Yaw Accuracy (RMS 1σ)

Real-time: 0.2°, Post-processing: 0.05°

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m.

Pitch/Roll Accuracy (RMS 1σ)

Real-time: 0.05°, Post-processing: 0.025°

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m.

Horizontal Positioning Accuracy

RTK FIX: 1 cm + 1 ppm

Vertical Positioning Accuracy

RTK FIX: 1.5 cm + 1 ppm

RGB Mapping Camera

Sensor

4/3 CMOS, Effective Pixels: 20 MP

Lens

FOV: 84°
Format Equivalent: 24 mm
Aperture: f/2.8-f/11
Focus Points: 1 m to ∞ (with autofocus)

Shutter Speed

Mechanical Shutter: 2-1/2000 s
Electronic Shutter: 2-1/8000 s

Shutter Count

200000

Photo Size

5280×3956 (4:3)

Still Photography Modes

Single shot: 20 MP
Timed: 20 MP
JPEG Timed Interval: 0.7/1/2/3/5/7/10/15/20/30/60 s
RAW/JPEG + RAW Timed Interval: 2/3/5/7/10/15/20/30/60 s

Video Codec and Resolution

H.264
4K: 3840×2160@30fps
FHD: 1920×1080 @30fps

ISO

Video: 100-6400
Photo: 100-6400

Video Bitrate

4K: 85Mbps
FHD: 30 Mbps

Supported File System

exFAT

Photo Format

JPEG/DNG (RAW)

Video Format

MP4 (MPEG-4 AVC/H.264)

Gimbal

Stabilization System

3-axis (tilt, roll, pan)

Angular Vibration Range

0.01°

Mounting

Detachable DJI SKYPORT

Mechanical Range

Tilt: -143° to +43°
Pan: ±105°

* Structural limit, not controllable range.

Controllable Range

Tilt: -120° to +30°
Pan: ±90°

Operation Mode

Follow/Free/Re-center

Data Storage

Raw Data Storage

Photo/IMU/Point cloud/GNSS/Calibration files

Point Cloud Data Storage

Real-time modeling data storage

Supported microSD Cards

microSD: Sequential writing speed 50 MB/s or above and UHS-I Speed Grade 3 rating or above; Max capacity: 256 GB. Use the recommended microSD cards.

Recommended microSD Cards

Lexar 1066x 64GB U3 A2 V30 microSDXC
Lexar 1066x 128GB U3 A2 V30 microSDXC
Kingston Canvas Go! Plus 128GB U3 A2 V30 microSDXC
Lexar 1066x 256GB U3 A2 V30 microSDXC

Post-Processing

Supported Software

DJI Terra

Data Format

DJI Terra supports exporting point cloud models in the following formats:
PNTS/LAS/PLY/PCD/S3MB


Accessories

SpecificationSpecification

General

Product Name

Zenmuse L2

Dimensions

155×128×176 mm (L×W×H)

Weight

905±5 g

Power

28 W (typical)
58 W (max.)

IP Rating

IP54

Supported Aircraft

Matrice 300 RTK (requires DJI RC Plus)
Matrice 350 RTK

Storage Temperature

-20° to 60° C (-4° to 140° F)

System Performance

Detection Range

450m @50% reflectivity, 0 klx
250m @10% reflectivity, 100 klx

Typical data. Measured using a flat subject with a size larger than the laser beam diameter, perpendicular angle of incidence, and an atmospheric visibility of 23 km. In low-light environments, the laser beams can achieve the optimal detection range. If a laser beam hits more than one subject, the total laser transmitter power is split, and the achievable range is reduced. The maximum detection range is 500 m.

Point Cloud Rate

Single return: max. 240,000 pts/s
Multiple returns: max. 1,200,000 pts/s

System Accuracy

Horizontal: 5 cm @ 150 m
Vertical: 4 cm @ 150 m

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). Using repetitive scanning with the RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m. The field contained objects with obvious angular features, and used exposed hard ground check points that conformed to the diffuse reflection model. DJI Terra was used for post-processing with Optimize Point Cloud Accuracy enabled. Under the same conditions with Optimize Point Cloud Accuracy not enabled, the vertical accuracy is 4 cm and the horizontal accuracy is 8 cm.

Real-Time Point Cloud Coloring Coding

Reflectivity, Height, Distance, RGB

LiDAR

Ranging Accuracy (RMS 1σ)

2 cm @ 150 m

Measured in an environment of 25° C (77° F) with a subject of 80% reflectivity at a distance of 150 m. The actual environment may differ from the testing environment. The figure listed is for reference only.

Maximum Returns Supported

5

Scanning Modes

Non-repetitive scanning pattern, Repetitive scanning pattern

FOV

Repetitive scanning pattern: Horizontal 70°, Vertical 3°
Non-repetitive scanning pattern: Horizontal 70°, Vertical 75°

Minimum Detection Range

3 m

Laser Beam Divergence

Horizontal 0.2 mrad, Vertical 0.6 mrad

Measured at full width at half maximum (FWHM) conditions. 0.6 mrad signifies that for every 100m increase in distance, the diameter of the laser beam expands by 6 cm.

Laser Wavelength

905 nm

Laser Spot Size

Horizontal 4 cm, vertical 12 cm @ 100 m (FWHM)

Laser Pulse Emission Frequency

240 kHz

Laser Safety

Class 1 (IEC 60825-1:2014)

Accessible Emission Limit (AEL)

233.59 nJ

Reference Aperture

Effective Aperture: 23.85 mm (equivalent to circular)

Max Laser Pulse Emission Power Within 5 Nanoseconds

46.718 W

Inertial Navigation System

IMU Update Frequency

200 Hz

Accelerometer Range

±6 g

Angular Velocity Meter Range

±300 dps

Yaw Accuracy (RMS 1σ)

Real-time: 0.2°, Post-processing: 0.05°

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m.

Pitch/Roll Accuracy (RMS 1σ)

Real-time: 0.05°, Post-processing: 0.025°

Measured under the following conditions in a DJI laboratory environment: Zenmuse L2 mounted on a Matrice 350 RTK and powered up. Using DJI Pilot 2’s Area Route to plan the flight route (with Calibrate IMU enabled). RTK in the FIX status. The relative altitude was set to 150 m, flight speed to 15 m/s, gimbal pitch to -90°, and each straight segment of the flight route was less than 1500 m.

Horizontal Positioning Accuracy

RTK FIX: 1 cm + 1 ppm

Vertical Positioning Accuracy

RTK FIX: 1.5 cm + 1 ppm

RGB Mapping Camera

Sensor

4/3 CMOS, Effective Pixels: 20 MP

Lens

FOV: 84°
Format Equivalent: 24 mm
Aperture: f/2.8-f/11
Focus Points: 1 m to ∞ (with autofocus)

Shutter Speed

Mechanical Shutter: 2-1/2000 s
Electronic Shutter: 2-1/8000 s

Shutter Count

200000

Photo Size

5280×3956 (4:3)

Still Photography Modes

Single shot: 20 MP
Timed: 20 MP
JPEG Timed Interval: 0.7/1/2/3/5/7/10/15/20/30/60 s
RAW/JPEG + RAW Timed Interval: 2/3/5/7/10/15/20/30/60 s

Video Codec and Resolution

H.264
4K: 3840×2160@30fps
FHD: 1920×1080 @30fps

ISO

Video: 100-6400
Photo: 100-6400

Video Bitrate

4K: 85Mbps
FHD: 30 Mbps

Supported File System

exFAT

Photo Format

JPEG/DNG (RAW)

Video Format

MP4 (MPEG-4 AVC/H.264)

Gimbal

Stabilization System

3-axis (tilt, roll, pan)

Angular Vibration Range

0.01°

Mounting

Detachable DJI SKYPORT

Mechanical Range

Tilt: -143° to +43°
Pan: ±105°

* Structural limit, not controllable range.

Controllable Range

Tilt: -120° to +30°
Pan: ±90°

Operation Mode

Follow/Free/Re-center

Data Storage

Raw Data Storage

Photo/IMU/Point cloud/GNSS/Calibration files

Point Cloud Data Storage

Real-time modeling data storage

Supported microSD Cards

microSD: Sequential writing speed 50 MB/s or above and UHS-I Speed Grade 3 rating or above; Max capacity: 256 GB. Use the recommended microSD cards.

Recommended microSD Cards

Lexar 1066x 64GB U3 A2 V30 microSDXC
Lexar 1066x 128GB U3 A2 V30 microSDXC
Kingston Canvas Go! Plus 128GB U3 A2 V30 microSDXC
Lexar 1066x 256GB U3 A2 V30 microSDXC

Post-Processing

Supported Software

DJI Terra

Data Format

DJI Terra supports exporting point cloud models in the following formats:
PNTS/LAS/PLY/PCD/S3MB

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