LR120K1 (30km) Long-Range Laser Rangefinder and Target Designator
LR120K1 (30km) Long-Range Laser Rangefinder and Target Designator
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30km Precision Laser Measurement & High-Energy Target Designation System
The ERDI LR120K1 is a high-performance 1064nm long-range laser rangefinder and target designator system developed for advanced electro-optical platforms requiring extended detection distance, high accuracy, and reliable laser illumination capability.
Featuring ≥120mJ laser pulse energy, ultra-low beam divergence of ≤0.15mrad, and long-range measurement capability up to 30km, the LR120K1 provides precise distance acquisition and coded laser designation for demanding applications.
Designed with a compact and rugged structure, the LR120K1 integrates advanced laser technology, digital communication, synchronization control, and environmental protection capability, making it an ideal solution for:
- UAV electro-optical payloads
- Airborne mission systems
- Vehicle-mounted EO/IR platforms
- Shipborne optical systems
- Precision laser support applications
Key Product Advantages
1. Ultra Long-Range Measurement Capability
The LR120K1 provides reliable long-distance measurement performance.
Performance:
✔ Maximum ranging distance: ≥30 km
✔ Ranging accuracy: ±1 m
✔ Valid measurement rate: ≥98%
✔ Ranging frequency: 1Hz / 5Hz
The system can accurately acquire target distance information under complex outdoor conditions.
2. High-Energy Laser Designation Capability
The LR120K1 provides powerful laser illumination capability with selectable energy levels.
Adjustable Laser Energy:
- 50mJ
- 80mJ
- ≥120mJ
Laser Designation:
- 20Hz coded illumination
- 16 coding patterns
- Coding accuracy: ±1μs
- Coding range: 45,000μs–60,000μs
The advanced coding system ensures reliable target illumination and system compatibility.
3. Ultra-Narrow Beam Divergence
The LR120K1 achieves:
Beam Divergence:
≤0.15 mrad
The narrow optical beam provides:
- Higher energy density
- Longer effective illumination distance
- Improved targeting precision
- Reduced optical dispersion
4. Designed for Advanced Electro-Optical Platforms
The LR120K1 is optimized for integration into professional EO/IR systems.
Typical Applications:
UAV & Airborne Systems
- Long-range UAV payloads
- Airborne reconnaissance platforms
- Stabilized gimbal systems
Vehicle-Mounted Platforms
- Mobile optical systems
- Remote surveillance vehicles
- Precision observation platforms
Shipborne Optical Systems
- Maritime surveillance
- Long-distance target measurement
- Coastal monitoring systems
Compact Rugged Design
Despite its high-energy laser output, the LR120K1 maintains a compact mechanical structure.
Mechanical Specifications:
Dimensions:
≤75 × 90 × 220 mm
Weight:
≤2 kg
The lightweight design allows flexible integration into space-limited platforms.
Advanced Operating Modes
The LR120K1 supports multiple mission modes:
Laser Ranging Mode
- Continuous operation ≥10 minutes
- 1Hz / 5Hz ranging frequency
Short-Duration Designation Mode
- Single operation ≥16 seconds
- 10 consecutive cycles
Long-Duration Designation Mode
- Single operation ≥60 seconds
- 5 consecutive cycles
Emergency Illumination Mode
- Instant switching from ranging mode to designation mode
Communication & System Integration
The LR120K1 provides flexible digital interfaces:
RS-422 Communication
Supports:
- Digital command control
- Status monitoring
- External synchronization
CAN 2.0B Interface
Features:
- Transmission rate >1Mbps
- Firmware upgrade support
- System integration flexibility
Compatible with modern:
- EO/IR control systems
- UAV mission computers
- Vehicle control platforms
Environmental Reliability
Designed for demanding operating environments.
Operating Temperature
-40°C to +60°C
Storage Temperature
-45°C to +65°C
Shock Resistance
- Vertical axis ≥20g
- Lateral/longitudinal ≥15g
- Pulse duration 11ms
Vibration
Tested according to:
MIL-STD-810G Environmental Test Standards
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | LR120K1 |
| Product Type | Long-Range Laser Rangefinder & Target Designator |
| Laser Wavelength | 1064nm ±3nm |
| Minimum Laser Energy | ≥120mJ |
| Energy Levels | 50mJ / 80mJ / 120mJ |
| Beam Divergence | ≤0.15mrad |
| Ranging Distance | ≥30km |
| Minimum Measurement Distance | ≤300m |
| Ranging Accuracy | ±1m |
| Ranging Frequency | 1Hz / 5Hz |
| Designation Frequency | 20Hz |
| Valid Measurement Rate | ≥98% |
| Pulse Width | 15ns ±5ns |
| Weight | ≤2kg |
| Dimensions | ≤75×90×220mm |
| Power Supply | 18–32V DC |
| Average Power Consumption | ≤120W |
| Peak Power Consumption | ≤200W |
| Communication Interface | RS-422 / CAN 2.0B |
| Operating Temperature | -40°C to +60°C |
Electrical Interface
Communication Interface
RS-422
Supports:
- Digital communication
- External synchronization
- Control commands
CAN 2.0B
Supports:
- High-speed communication
- Firmware upgrades
- Platform integration
Why Choose ERDI LR120K1?
✔ 30km long-range laser measurement
✔ ≥120mJ high-energy laser output
✔ ±1m ranging accuracy
✔ 20Hz coded designation
✔ ≤0.15mrad ultra-narrow beam divergence
✔ Lightweight ≤2kg design
✔ RS-422 & CAN communication
✔ Military-grade environmental adaptability
Typical Applications
- UAV Long-Range Electro-Optical Pods
- Airborne Surveillance Systems
- Vehicle EO/IR Platforms
- Shipborne Optical Systems
- Precision Laser Measurement Systems
- Advanced Target Positioning Systems
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ERDI Pre-Sales Notice
OEM / ODM / OBM Services
ERDI supports full-range customization including:
- OEM (Original Equipment Manufacturing)– Products manufactured under your brand or part number.
- ODM (Original Design Manufacturing)– Custom optical or mechanical design based on your specifications.
- OBM (Original Brand Manufacturing)– Private-label solutions with our in-house R&D and branding support.
We provide technical co-development, logo engraving, packaging customization, and batch production services to meet both small-scale and mass-production requirements.
Global Presence and Trade Reliability
ERDI has established official stores on leading global platforms including Amazon, Alibaba International Station, and Made-in-China.com, allowing customers worldwide to purchase safely and conveniently. We are a verified and trusted factory, not a reseller, and we ensure that all transactions, quotations, and logistics follow transparent and secure trade practices.
Sample and Lead Time
To help customers evaluate our products and performance, we offer sample orders for most product categories.
- Standard samplesare typically delivered within one week after order confirmation.
- Customized modulesmay require additional processing time depending on design complexity and optical requirements.
Our logistics team will provide real-time tracking and documentation for every shipment.
Technical Support and Service System
ERDI maintains technical service centers and distribution partners worldwide, enabling rapid customer response.
We provide:
- Comprehensive technical consultation and project evaluation
- One-on-one on-site technical assistanceat the customer’s facility when required
- Lifetime after-sales supportand technical maintenance guidance
Each laser product is delivered with a full set of user documentation, including Laser Module Usage Precautions and Safety Guidelines.
Quality Assurance and Warranty
ERDI implements strict multi-stage quality control throughout production:
- Incoming material inspection
- Optical alignment verification
- Output power and wavelength calibration
- Safety and durability testing under standard conditions
We guarantee that all products leaving our factory meet design and performance specifications.
Except for man-made damage, we will replace any defective unit within one year free of charge and provide lifetime maintenance support thereafter.
For more details, please refer to our After-Sales Service & Warranty Policy.
Communication and Order Confirmation
To ensure efficient service, please confirm the following before placing an order:
- Product model, wavelength, output power, and working voltage/current
- Whether you require custom mechanical dimensions, optical configurations, or driver circuitry.
- Packaging, labeling, and shipping preferences.
- Any specific export or compliance documentation needed for your country.
Our sales engineers will provide an official quotation and delivery schedule upon confirmation of all specifications.
After-Sales Service & Warranty Policy
Customer Support
For technical assistance, warranty claims, or safety inquiries, please contact our official service team through the contact information listed onerdicn.com.
Our support engineers will provide professional guidance on installation, alignment, safety, and maintenance procedures.
Product Origin and Quality Assurance
- All ERDI products are manufactured directly by the factory, ensuring consistent quality and full traceability.
- We provide a diverse rangeof laser modules and laser distance measurement modules to suit various industrial, educational, and research applications.
- Every product is tested and inspectedbefore shipment to guarantee that it meets specification standards.
Return and Exchange Policy
- Customers may request a return or exchange within 30 daysof receiving the goods, provided that:
- The product remains in original condition, unused, and without affecting secondary sales.
- A valid reason for return or exchangeis provided.
- Upon approval, we will replace or refund according to our service policy.
- The buyer is responsible for shipping costsassociated with returns, exchanges, or repairs, based on international freight cost rules.
Warranty Coverage
- The main functional componentsof ERDI laser products are covered by a 2-year warranty from the date of purchase, excluding cosmetic appearance.
- Within the first 12 months, if a verified manufacturing defect occurs, we will replace the item with a brand-new productfree of charge.
- Replacement of cosmetic or housing components (e.g., enclosure, labeling, or exterior parts) may incur a reasonable cost feebased on material expenses.
- Warranty does not cover:
- Damage due to misuse, improper installation, or modification.
- Operation outside the recommended power supply or temperature range.
- Accidental or physical damage, including drops, fire, or liquid ingress.
Receiving Inspection
- Upon delivery, please inspect the parcel immediately in the presence of the courier.
- If there is any quantity discrepancy, visible damage, or mismatch, do not signthe delivery receipt.
- Once the package is signed for (by you, family, or colleagues), it is considered accepted as correct and complete.