3D LiDAR Sensor LD-MRS SICK – Multi-Layer LiDAR for Demanding Outdoor Environments
Summary:
The LD-MRS is multi-layer 3D LiDAR sensor series of SICK, purpose-built for harsh outdoor industrial environments. With simultaneous scanning of up to 8 layers, a detection range of up to 320 m, IP69K protection rating, and multi-echo technology, the LD-MRS delivers exceptional reliability for anti-collision systems, autonomous navigation, and perimeter monitoring in mining, ports, logistics, and heavy industrial vehicles.
Product Overview of the SICK LD-MRS 3D LiDAR Sensor
The LD-MRS employs multi-layer 3D laser scanning technology to capture distance and object shape data across multiple parallel scan planes. This design effectively compensates for vehicle pitch and roll while providing superior detection performance in adverse weather conditions. The sensor supports integrated functions such as field evaluation (up to 16 fields), object tracking (up to 64 objects), or raw measurement data output, depending on the variant.
Key models include:
- LD-MRS400001: Field evaluation
- LD-MRS420201: Object tracking
- LD-MRS820301: 8-layer measurement data output
Key Features:
- Scan layers: 4 or 8 layers
- Operating range: 0.5 m – 320 m (variant-dependent)
- Protection rating: IP69K
- Operating temperature: –40 °C to +70 °C
- Interfaces: Ethernet, Serial, CAN; Power consumption: 8 W
Technical Specifications – LD-MRS SICK
| Parameter |
Value |
| Model |
LD-MRS |
| Part No. |
LD-MRS400001 (1045046), LD-MRS420201 (1085081), LD-MRS820301 (1115128) |
| Product line |
LD-MRS – 3D LiDAR Sensor |
| Applications |
Outdoor, Indoor |
| Measurement principle |
Multi-layer 3D LiDAR |
| Light source |
Infrared light (905 nm, ±10 nm). |
| Laser class |
1 (IEC 60825-1:2014, EN 60825-1:2014+A11:2021) – Eye-safe |
| Number of scan layers |
4 layers / 8 layers |
| Working range |
0.5 m … 320 m |
| Scanning range at 10% remission |
30–50m (LD-MRS400001/420201 4-layer)
150 m (LD-MRS820301 8-layer) |
| Horizontal scan angle |
85° (primary field); expandable to 110° with 2/4 layers (variant-dependent) |
| Vertical scan angle |
3.2° … 6.4°, ± 0.2° (variant-dependent) |
| Number of evaluated echoes |
3 / 2 (variant-dependent) |
| Scan frequency |
12.5 Hz … 50 Hz; object tracking at 12.5 Hz (variant-dependent) |
| Supply voltage |
9 V … 30 V DC |
| Power consumption |
8 W |
| Interfaces |
Ethernet, Serial, CAN |
| Protection rating |
IP69K |
| Dimensions (L × W × H) |
94 × 165 × 88 mm (standard models like LD-MRS400001); 91.3 × 164.5 × 88 mm (lite 8-layer models like LD-MRS820301) |
| Operating temperature |
–40 °C … +70 °C |
| Weight |
1 kg / 0.77 kg (variant-dependent) |
Source: SICK Product Overview LD-MRS, updated 2026-03-10. Download datasheet PDF.
Industrial Applications of the LD-MRS
- Advanced Anti-Collision Protection: Installed on mining trucks, excavators, and airport ground equipment. The multi-layer scanning reliably detects obstacles at long range and compensates for vehicle motion. According to SICK, this is particularly effective for large mining haul trucks.
- Perimeter Monitoring & Security: Used in intelligent traffic management systems, port perimeter surveillance, and intrusion detection with a wide 320 m scanning range. Field evaluation supports up to 16 configurable fields.
- Advanced Navigation: Integrated into agricultural robots and autonomous vehicles operating in harsh outdoor conditions. Object tracking monitors up to 64 objects simultaneously at 12.5 Hz.
- 3D Measurement & Surface Mapping: The LD-MRS820301 (8-layer, measurement data output) generates detailed 3D data for terrain mapping and surface detection in heavy industry.
- Ports & Logistics: Reliable object detection and crane monitoring in salty, dusty, rainy, or foggy environments thanks to IP69K rating and multi-echo processing.
Comparison: LD-MRS vs. LMS5xx
| Criteria |
LD-MRS |
LMS5xx |
| Technology |
Multi-layer 3D LiDAR |
2D LiDAR |
| Applications |
Outdoor, Indoor |
Indoor, Outdoor, Security (variant-dependent) |
| Scan Layers |
4 or 8 layers |
1 layer |
| Maximum Operating Range |
320 m |
130 m |
| Horizontal Scan Angle |
85° (primary); up to 110° with additional layers |
190° |
| Vertical Scan Angle |
3.2° … 6.4°, ± 0.2° |
None |
| Evaluated Echoes |
3 / 2 (variant-dependent) |
2 / 5 (variant-dependent) |
| Protection Rating |
IP69K |
IP67 |
| Suitable Applications |
Autonomous vehicles, mining, ports, 3D mapping |
Anti-collision, area monitoring, profile measurement |
Conclusion: The LD-MRS is the optimal choice for outdoor applications requiring true 3D environmental perception, long-range detection, and reliable operation in extreme conditions. The LMS5xx, on the other hand, offers a cost-effective 2D LiDAR solution for standard anti-collision and area monitoring tasks.
Frequently Asked Questions (FAQ)
Q1. Is the LD-MRS a 2D or 3D LiDAR sensor?
The LD-MRS is a multi-layer 3D LiDAR sensor from SICK. It scans simultaneously across 4 or 8 layers to generate three-dimensional spatial data, enabling more accurate object detection than conventional 2D LiDAR.
Q2. Can the LD-MRS be used outdoors in harsh environments?
Yes. It is specifically designed for outdoor use with an IP69K protection rating, operating temperature range of –40 °C to +70 °C, and multi-echo technology that minimizes the impact of rain, dust, or snow.
Q3. What is the maximum detection range of the LD-MRS?
Depending on the variant, the LD-MRS offers a working range of up to 320 m, making it well-suited for long-distance object detection in mining, ports, and heavy industrial vehicles.
Q4. What applications is the LD-MRS suitable for?
The LD-MRS is commonly used in anti-collision systems for industrial vehicles, outdoor autonomous navigation, intelligent traffic management, port operations, and 3D mapping in industrial environments.
Q5. When should LD-MRS be chosen over 2D LiDAR?
Choose the LD-MRS when the application requires 3D environmental perception, multi-plane object detection, or stable performance in harsh outdoor conditions. For simple area monitoring tasks, 2D LiDAR may be more cost-effective.
Contact for Purchasing the LD-MRS 3D LiDAR Sensor
AUMI – Official authorized distributor of SICK products in Vietnam. Full manufacturer warranty, complete CO/CQ documentation, and 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected] 🌐 Website: https://aumi.com.vn/
Addresses:
- Hanoi: B44, Villa Lot, Viet Hung Urban Area, Viet Hung Ward
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh, Bay Hien Ward
- Da Nang: 9th Floor, PV Bank Tower, No. 2 30-4 Street, Hoa Cuong Ward
